The environment and its preservation are becoming more and more dependent on ecological development in an age of accelerating climate risk,biodiversity loss,and pressures of pollution.This review summarizes the fronti...The environment and its preservation are becoming more and more dependent on ecological development in an age of accelerating climate risk,biodiversity loss,and pressures of pollution.This review summarizes the frontiers of innovation that are capable of enhancing integration of human development and ecological integrity,and how the interaction between technical,ecological,and institutional innovations can produce real-world results.We initially discuss developing ecological innovations that offer new opportunities to urban development,such as low-impact cities,ecological infrastructure,clean energy transitions,and biodiversity-informed siting,and digital decision-support systems enhancing planning and resource efficiency.Then,we evaluate progress in the field of preservation and restoration,with a particular focus on nature-based solutions,a process-based approach to restoration science,connectivity conservation,and a watershed-scale and seascape-scale approach to restore resilience and help recover biodiversity.In these spheres,we discover measurement,monitoring,and verification(MRV),one of the main pillars of scale alongside remote sensing,automated field monitoring,environmental Deoxyribonucleic Acid(DNA),and Artificial Intelligence(AI)-enabled analytics,increasing the range of trackable and manageable indices as well as creating new issues with baselines,uncertainty,and data ethics.Lastly,we compare governance,finance,and equity as key conversion processes that can turn innovations into sustainable dividends with authenticity principles,however,of additionality,permanence,and leakage avoidance,and with rightsbased and redistributive mechanisms and approaches that reinforce legitimacy.We end by providing a portfolio roadmap of prioritization of the interventions that have high co-benefits and the identification of critical research and institutional gaps to provide net-positive ecological results.展开更多
Anammox bacteria in constructed wetlands(CWs)play pivotal role in sustainable nitrogen transformation,yet existing studies lack comprehensive analysis of environmental gradients and microbial interactions,both key fac...Anammox bacteria in constructed wetlands(CWs)play pivotal role in sustainable nitrogen transformation,yet existing studies lack comprehensive analysis of environmental gradients and microbial interactions,both key factors in anammox bacteria enrichment.This study investigated the mechanisms driving anammox bacteria enrichment in lab-scale simulated CWs treating high-nitrogen wastewater,focusing on bacterial community re-sponses across wetland layers with various strategies,including continuous up-flow influent,nitrogen loading increase,effluent recirculation,intermittent influent,and anammox bacteria inoculation.Results showed that total relative and absolute abundances of anammox bacteria ranged from 0.77%to 12.50%and from 0.13 to 6.46×10^(7) copies/g,respectively.Dissolved oxygen and pH had significant positive correlations with the absolute abundance of anammox bacteria,while organic matter and nitrate negatively impacted their relative abundance.Permutational multivariate analysis of variance indicated that spatial heterogeneity explained more variation in anammox bacteria abundance(43.44%)compared to operational strategies(8.58%).In terms of microbial interactions,60 dominant species exhibited potential correlations with anammox bacteria,comprising 170 interactions(105 positive and 65 negative),which suggested that anammox bacteria generally foster cooperative relationships with dominant bacteria.Notably,significant interspecies interactions were observed between Candidatus Kuenenia(dominant anammox bacteria in CWs)and species within the genera Chitinivibrio-nia and Anaerolineaceae,suggesting that microbial interactions primarily manifest as indirect facilitative effects rather than direct mutualistic relationships.Given that the Normalized Stochasticity Ratio in CWs were<50%,this study inferred that environmental gradients have greater influence on anammox bacteria than microbial interactions.展开更多
In Chinas ecological environment, environmental pollution and climate change are two important problems. With the continuous acceleration of urbanization and urbanization process, the deep development of various indus...In Chinas ecological environment, environmental pollution and climate change are two important problems. With the continuous acceleration of urbanization and urbanization process, the deep development of various industries is becoming more and more harmful to the ecology. In particular, the continuous deterioration of the atmosphere has led to the gradual emergence of adverse factors such as global climate change, which not only poses a certain threat to the human body, but also causes great damage to the long-standing green ecosystem. At present, Chinas environmental problems are still very serious, we must strengthen the environmental monitoring, to ensure the implementation of environmental protection work. In view of this situation, the relevant departments should strengthen environmental monitoring, formulate corresponding laws and regulations, strengthen environmental monitoring equipment, technical and management personnel, fundamentally improve the overall level of environmental monitoring, curb environmental problems from the source, and promote sustainable development.展开更多
With the continuous acceleration of urban construction and the continuous increase of urban population, the sewage discharge increases year by year and the treatment difficulty gradually increases, which seriously dam...With the continuous acceleration of urban construction and the continuous increase of urban population, the sewage discharge increases year by year and the treatment difficulty gradually increases, which seriously damages the urban ecological environment and reduces the quality of life of people. At the same time, some cities have low sewage treatment efficiency due to shortage of funds, backward technology, aging equipment and other problems, which further restrict the development of cities. In order to solve the sewage treatment problem and improve the utilization rate of water resources, each city must carry out sewage treatment planning according to the actual development situation, innovate the sewage treatment process and improve the sewage treatment efficiency, laying a solid foundation for people's water safety and the city's resource protection.展开更多
In order to improve the efficiency and quality of environmental field investigation,as well as realize real-time image data information sharing between the field environment and the investigation center,this paper fir...In order to improve the efficiency and quality of environmental field investigation,as well as realize real-time image data information sharing between the field environment and the investigation center,this paper first analyzes the application advantages of panoramic technology,followed by the types of panoramic technology,and finally takes the UAV panoramic technology as an example to demonstrate the application process of panoramic technology in environmental field investigation for the reference of relevant personnel.展开更多
With the development of the times, people are facing more and more serious environmental pollution problems in their life. For example, the reduction of air quality not only affects peoples normal life, but also may i...With the development of the times, people are facing more and more serious environmental pollution problems in their life. For example, the reduction of air quality not only affects peoples normal life, but also may increase the probability of people suffering from lung diseases, which is not conducive to the rapid development of cities. Green chemical technology is an effective method to deal with pollution problems in modern society. Using green chemical technology to deal with environmental pollution can not only achieve the goal of treating environmental pollution, but also avoid further pollution to the environment, which plays a positive role in improving the environmental quality of cities.展开更多
With the continuous advancement of economic globalization, Chinas economic development level has been continuously improved. However, in the whole process, the impact on the natural ecological environment and peoples ...With the continuous advancement of economic globalization, Chinas economic development level has been continuously improved. However, in the whole process, the impact on the natural ecological environment and peoples home on which to live cannot be ignored. In the last century, China was in an important period of economic restructuring and strengthening the countrys strength. Industrial development was used to promote the countrys economic construction. Under the extensive industrial development model, the environmental pollution problem became more and more serious, and various air pollution, soil pollution and water pollution problems emerged one after another. With the transformation of Chinas economic system, a sustainable development strategic plan was put forward. The 14th Five-Year Plan even took "double carbon" as an important goal for Chinas future development. Therefore, it is also necessary to strengthen the exploration of the use of ecological environment monitoring technology and environmental protection technology, master the correct way of using the technology, and lay a solid foundation for Chinas ecological environment protection work.展开更多
In the quest for effective solutions to address Environ.Pollut.and meet the escalating energy demands,heterojunction photocatalysts have emerged as a captivating and versatile technology.These photocatalysts have garn...In the quest for effective solutions to address Environ.Pollut.and meet the escalating energy demands,heterojunction photocatalysts have emerged as a captivating and versatile technology.These photocatalysts have garnered significant interest due to their wideranging applications,including wastewater treatment,air purification,CO_(2) capture,and hydrogen generation via water splitting.This technique harnesses the power of semiconductors,which are activated under light illumination,providing the necessary energy for catalytic reactions.With visible light constituting a substantial portion(46%)of the solar spectrum,the development of visible-light-driven semiconductors has become imperative.Heterojunction photocatalysts offer a promising strategy to overcome the limitations associated with activating semiconductors under visible light.In this comprehensive review,we present the recent advancements in the field of photocatalytic degradation of contaminants across diverse media,as well as the remarkable progress made in renewable energy production.Moreover,we delve into the crucial role played by various operating parameters in influencing the photocatalytic performance of heterojunction systems.Finally,we address emerging challenges and propose novel perspectives to provide valuable insights for future advancements in this dynamic research domain.By unraveling the potential of heterojunction photocatalysts,this reviewcontributes to the broader understanding of their applications and paves the way for exciting avenues of exploration and innovation.展开更多
With the continuous improvement of China's economic level, chemical enterprises have been developed accordingly. However, the development of chemical enterprises will cause serious energy consumption and also caus...With the continuous improvement of China's economic level, chemical enterprises have been developed accordingly. However, the development of chemical enterprises will cause serious energy consumption and also cause serious pollution to the environment. Therefore, chemical enterprises should strengthen the use of energy conservation and environmental protection technology, and improve the importance of energy conservation and environmental protection technology, so that relevant personnel can fully grasp the operation points of energy conservation and environmental protection technology, so as to lay a good foundation for chemical enterprises to carry out environmental protection and energy conservation and emission reduction work.展开更多
In recent years,environmental DNA(e DNA)has garnered significant attention as a novel tool in biodiversity monitoring,recognized for its efficiency,convenience,and non-invasiveness.Despite its extensive application in...In recent years,environmental DNA(e DNA)has garnered significant attention as a novel tool in biodiversity monitoring,recognized for its efficiency,convenience,and non-invasiveness.Despite its extensive application in various ecological studies,such as conservation,invasion biology,biomonitoring and biodiversity survey assessment,its use in avian monitoring remains in its infancy.This review critically examines the potential and limitations of e DNA technology for avian monitoring,focusing on current advancements and ongoing challenges in this emerging field.Water and air are the primary environmental media for collecting avian e DNA,although other sources like spider webs and plant flowers have been explored as well.Notably,airborne e DNA has been reported to capture the highest diversity of avian species.While avian e DNA technology has shown promise for monitoring rare and endangered species and assessing avian diversity,significant challenges remain,particularly in sampling strategies,DNA extraction methodology,primer selection,and ascertain abundance.Additionally,we discussed the factors influencing the production,transportation,and degradation of avian e DNA in the environment.Finally,we suggested future research directions,including optimizing sampling strategies,developing avian-specific universal primers,expanding avian DNA barcode databases,enhancing e DNA detectability,and integrating environmental RNA(e RNA)and e DNA approaches.展开更多
Air pollution is a major challenge to the improvement of urban environmental quality.The control of air pollution still faces severe challenges,especially in developing countries,such as ozone pollution control.Ozone ...Air pollution is a major challenge to the improvement of urban environmental quality.The control of air pollution still faces severe challenges,especially in developing countries,such as ozone pollution control.Ozone is a typical secondary air pollutant,and its formation chemistry from its precursors(NOx and volatile organic compounds)is highly nonlinear,which caused the emission reduction of its precursors is not always effective and therefore new assisted approaches to control of ozone pollution are needed.Photocatalysis and ambient catalysis technology are expected to be applied in open atmosphere as a new booster to the direct purification of air pollutants in emission sources.In this perspective,we summarize the current knowledge about the photocatalysis and ambient catalysis technology for the removal of air pollutants under natural photothermal conditions.Based on these technologies,we propose the concept of“Environmental Catalytic City”,which refers to the spontaneous purification of low concentration urban air pollutants in the atmosphere by catalytic materials coating on the artificial surfaces,such as building surfaces in the city.In this way,the urban city with self-purification function can remove air pollution without additional energy consumption.The further improvement,development,and application of the“Environmental Catalytic City”is also discussed.展开更多
The sustainable development of aquaculture industry is deeply constrained by pathogens and diseases,and traditional detection methods are difficult to adapt to the needs of intensive aquaculture due to low efficiency ...The sustainable development of aquaculture industry is deeply constrained by pathogens and diseases,and traditional detection methods are difficult to adapt to the needs of intensive aquaculture due to low efficiency and insufficient sensitivity.This article reviews the progress of rapid detection technology for aquatic pathogens based on molecular biology,immunology,biosensors,etc.,and analyzes the application value of innovative methods such as isothermal amplification and CRISPR.This technology injects core momentum into the new quality productivity of fisheries through early and precise identification of pathogens:reducing aquaculture losses to improve resource efficiency,promoting the transformation of aquaculture models to data-driven,ensuring the safety of aquatic products to enhance the competitiveness of the industry chain.The current technology has shortcomings such as lagging standardization,weak on-site anti-interference ability,and insufficient recognition of new pathogens.In the future,we need to focus on technological integration and innovation,intelligent upgrading,and standardization construction,promote technology from laboratories to industrial applications,and provide continuous support for the high-quality development of fisheries.展开更多
Objective:To investigate the effect of a water-soluble nacre extract derived from Pinctada fucata on skeletal muscle aging.Methods:Naturally aged C57BL/6J mice received nacre extract mixed in chow for 12 weeks.Forelim...Objective:To investigate the effect of a water-soluble nacre extract derived from Pinctada fucata on skeletal muscle aging.Methods:Naturally aged C57BL/6J mice received nacre extract mixed in chow for 12 weeks.Forelimb grip strength,hanging performance,and locomotor activity were assessed.Skeletal muscle remodeling and signaling were evaluated by histology and immunostaining for fibrosis,contractile-marker features,senescence-and DNA damage-associated markers,inflammatory signaling,and mitochondrial proteins.Oxidative status was assessed by determining antioxidant capacity,lipid peroxidation,and oxidative DNA damage.Transcriptomic profiling was also performed,and selected targets were validated by quantitative RT-PCR and immunostaining.In addition,differentiated C2C12 myotubes were exposed to doxorubicin and treated with nacre extract;senescence-associated β-galactosidase,DNA damage signaling,and cell viability were measured.Results:Nacre extract increased forelimb grip strength and showed a positive trend in hanging performance without altering spontaneous locomotion.It also reduced collagen deposition,preserved contractile-marker immunoreactivity,attenuated senescence-and inflammation-associated signals,and increased mitochondrial protein immunoreactivity.Oxidative DNA damage was notably reduced by nacre extract.Transcriptomics indicated modulation of stress/redox programs and increased neurotrophic tyrosine kinase receptor type 2 expression,which were supported by tissue-level validation.In C2C12 myotubes,nacre extract suppressed doxorubicin-induced senescence-associated phenotypes without loss of cell viability.Conclusions:Water-soluble nacre extract mitigates skeletal muscle aging through coordinated modulation of oxidative stress,inflammation,mitochondrial features,and cellular senescence.展开更多
The atmospheric surface layer of the tropical coastal ocean is commonly very unstable and experiences weakwind conditions.How the latent(LE)and sensible(H)heat fluxes behave under such conditions are unclear because o...The atmospheric surface layer of the tropical coastal ocean is commonly very unstable and experiences weakwind conditions.How the latent(LE)and sensible(H)heat fluxes behave under such conditions are unclear because of the lack of observation stations in the tropics.Thus,this study aims to analyze LE and H and the microclimate parameters influencing them.The authors deployed an eddy covariance system in a tropical coastal region for seven months.The microclimate parameters investigated were wind speed(U),vapor pressure deficit(Δe),temperature difference(ΔT),wind-vapor pressure deficit(UΔe),wind-temperature difference(UΔT),and atmospheric stability(z/L),where z is height and L is the Monin–Obukhov length.On the daily time scale,the results show that LE was more associated with U thanΔe,while H was more related toΔT than U.Cross-wavelet analysis revealed the strong coherence in the LE-U relationship for periods between one and two days,and for H–ΔT,0.5 to 1 day.Correlation and regression analyses confirmed the time series analyses results,where strong positive correlation coefficients(r)were obtained between LE and U(r=0.494)and H andΔT(r=0.365).Compared to other water bodies,the transfer coefficient of moisture(CE N)was found to be small(=0.40×10^(-3))and independent of stability;conversely,the transfer coefficient of heat(CH N)was closer to literature values(=1.00×10^(-3))and a function of stability.展开更多
A novel hierarchical porous metal-organic framework(MOF)-based hollow carbon nanofiber mat(CNFM)was prepared through a facile electrospinning process followed by carbonization.Two immiscible polymers,polyacrylonitrile...A novel hierarchical porous metal-organic framework(MOF)-based hollow carbon nanofiber mat(CNFM)was prepared through a facile electrospinning process followed by carbonization.Two immiscible polymers,polyacrylonitrile/polymethyl methacrylate(PAN/PMMA),and porous zeolitic imidazolate framework-8(ZIF-8)particles were selected as components for the electrospinning suspension.The resulting PPZ-CNFM-1–2–2(PAN:PMMA:ZIF8=1:2:2,mass ratio)exhibited a hollow tubular structure with uniformly distributed dense hollow-spheres on the tube walls.The obtained CNFM possessed a high Brunauer-Emmett-Teller specific surface area(SBET)of 1696 m2/g and total pore volume of 2.74 cm^(3)/g,which are comparable to those achieved by traditional physical or chemical activation methods.This MOF-based CNFM demonstrated excellent adsorption performance towards ciprofloxacin(CIP),exhibiting a high static adsorption capacity of approximately 600 mg/g and achieving adsorption equilibrium withing only 1 h.The exceptional adsorption capacity can be attributed to its high SBET and abundant pores that accommodate CIP molecules,while the rapid adsorption rate is facilitated by the presence of hollow-sphere and hollow tubular structures in the carbon nanofibers.Furthermore,the study revealed the significant contributions of pore-filling effect during the adsorption process.Fixed-bed experiments confirmed that this MOF-based hollow CNFM holds great potential for large-scale applications in purifying CIP-contaminated water.展开更多
This study presents a comprehensive phylogenetic analysis on Batrachospermaceae based on key taxonomic identifiers(rbcL,psaA,psbA,and COI-5P)from some genera.To systematically explore the phylogenetic relationships an...This study presents a comprehensive phylogenetic analysis on Batrachospermaceae based on key taxonomic identifiers(rbcL,psaA,psbA,and COI-5P)from some genera.To systematically explore the phylogenetic relationships and taxonomy within Batrachospermaceae,we integrated molecular and morphological data,and explored the phylogeny,character evolution,and ancestral geographical origin and provided a theoretical support for the classification and geographic origination of Batrachospermaceae.Our findings reveal distinct relationships within the phylogenetic tree.Notably,10 genera(Sirodotia,Batrachospermum,Tuomeya,Volatus,Lympha,Nothocladus,Torularia,Sheathia,Nocturama,and Petrohua)are closely associated in the rbcL phylogenetic tree.Additionally,four genera(Kumanoa,Hoefkenia,Notohesperus,and Virescentia)exhibit high support ratios,indicating their close interrelations.Other genera,including Paludicola,Visia,Acarposporophycos,Macrosporophycos,Visioidea,Balliopsis,and Psilosiphon,exhibit clustering traits.Furthermore,the multigene sequences provide a robust support for Montagnia that forms a monophyletic group.Ancestral reconstruction of morphological characters identifies nine primitive character states,including whorl,fascicle length,cortical cells,secondary fascicles,the shape of carpogonical branch,spermatangia,carposporophyte,carpogonium and trichogyne,with Visia likely representing ancestral traits in Batrachospermaceae.Furthermore,geographical origin maps suggest a potential common ancestral of Batrachospermaceae origin in the American continent.Additional to conventional analyses,including evolutionary and ancestral reconstruction investigations into key morphological characters,we attempt to reconstruct the biogeography within the Batrachospermaceae,thus contributing to a nuanced understanding of its origin.展开更多
Ship operations are crucial to global trade,and their decarbonization is essential to mitigate climate change.This study evaluates the economic viability of existing and emerging decarbonization technologies in mariti...Ship operations are crucial to global trade,and their decarbonization is essential to mitigate climate change.This study evaluates the economic viability of existing and emerging decarbonization technologies in maritime shipping using the levelized cost of energy methodology.It includes a detailed comparative analysis based on essential criteria and sensitivity assessments to highlight the economic impacts of technological advancements.Key factors influencing total costs include fuel costs,carbon pricing,and energy demands for carbon capture.The findings reveal that methanol is more cost-effective than heavy fuel oil(HFO)when priced below 3000 CNY/t,assuming HFO costs 4400 CNY/t.Additionally,methanol with post-combustion carbon capture is less expensive than pre-combustion carbon capture.When carbon prices rise above 480 CNY/t,carbon capture technologies prove more economical than purchasing carbon emission allowances for HFO and liquefied natural gas.Enhanc-ing the use of exhaust gas waste heat is recommended for cost savings.Post-combustion carbon capture also shows greater efficiency,requiring about 1.1 GJ/t less energy than pre-combustion methods,leading to lower overall costs.Future research should focus on market mechanisms to stabilize fuel prices and develop less energy-intensive carbon capture technologies.This study offers critical insights into effective decarbonization strategies for advancing global maritime trade in the present and future.展开更多
Chlorinated antibiotics pose great challenges in efficient removal,while for the first time,this work greatly enhanced their electrocatalytic dechlorination performance by construction of non-noble metal Co_(3)O_(4)/g...Chlorinated antibiotics pose great challenges in efficient removal,while for the first time,this work greatly enhanced their electrocatalytic dechlorination performance by construction of non-noble metal Co_(3)O_(4)/g-C_(3)N_(4) heterojunctions to improve process cost-effectiveness.The Co_(3)O_(4)/g-C_(3)N_(4) heterojunction demonstrated an effective removal of 93.6%thiamphenicol(TAP)within 45 min,with the rate constant(0.0584 min^(-1))that was 2.4 and 2.8 times that of Co_(3)O_(4) and g-C_(3)N_(4) alone,respectively.The formation of heterojunctions facilitated electron transfer,enriched the electron density on Co_(3)O_(4),and enhanced the adsorption of pollutants as well as the desorption of degradation intermediates.The enhanced production of atomic hydrogen(H*)of Co_(3)O_(4)/g-C_(3)N_(4),which increased by 13.6-28.2 times,contributed more to pollutant removal(64.0%),much higher than that of Co_(3)O_(4)(37.3%)and g-C_(3)N_(4)(6.1%).The energy barrier for H_(2) formation on Co_(3)O_(4)/g-C_(3)N_(4)(0.75 eV)was higher than that on Co_(3)O_(4)(-1.84 eV),supporting that it could stabilize H*and inhibit the formation of H_(2).The Co_(3)O_(4)/g-C_(3)N_(4) heterojunction exhibited stable performance with less impact by pH and co-existing ions,and posed effectiveness for the dechlorination of typical chlorinated antibiotics.This study offers an efficient and sustainable strategy for constructing heterojunctions to enhance the performance of non-noble metal catalysts in electrocatalytic dechlorination.展开更多
[Objectives]To explore the control mode of farmland drainage pollutants and investigate the effects of ecological ditch and wetland on reducing farmland drainage pollutants in Hetao Irrigation District.[Methods]Based ...[Objectives]To explore the control mode of farmland drainage pollutants and investigate the effects of ecological ditch and wetland on reducing farmland drainage pollutants in Hetao Irrigation District.[Methods]Based on the demonstration construction project of the ecological ditch-constructed wetland system in the Hetao Irrigation District,an experimental study was conducted from July to September 2023 to investigate the interception and purification effects of ecological ditches,constructed wetlands,and the combined ecological ditch-constructed wetland system on farmland drainage pollutants.Key water quality parameters measured included total nitrogen(TN)concentration and total phosphorus(TP)concentration.[Results]Different treatment modes of ecological ditches and constructed wetlands have a certain removal effect on nitrogen and phosphorus pollutants in water bodies.The ecological ditches treated with Astragalus laxmannii,Melilotus officinalis,Medicago sativa,bio-ball substrate,and bio-sheet substrate showed reduction efficiencies for TN and TP of 21.09% and 23.84%,12.06% and 26.67%,20.08% and 34.15%,23.65% and 20.56%,and 19.92% and 25.83%,respectively.The emergent plant area showed reduction efficiencies of 24.28%for TN and 17.89%for TP,while the submerged plant area achieved a reduction efficiency of 10.21%for both TN and TP.Among the different treatment modes,the ecological ditch with M.sativa performed better in TP removal,whereas the bio-ball substrate treatment mode showed higher effectiveness in TN removal.In addition,the emergent plant area exhibited better TP removal performance,while the submerged plant area was more effective in TN removal.The combined system of ecological ditch and constructed wetland achieved removal rates of 37.55% for TN and 11.47% for TP.It effectively facilitates the step-by-step interception and adsorption purification of pollutants,thereby showing significant removal and purification effects on nitrogen and phosphorus contaminants.This contributes to mitigating agricultural non-point source pollution.[Conclusions]The combined ecological ditch-constructed wetland system serves dual functions of agricultural drainage and pollutant interception and purification.It reduces the pollution load of farmland drainage on receiving water bodies to some extent and mitigates agricultural non-point source pollution.Therefore,it is a relatively suitable technology for managing agricultural non-point source pollution in the Hetao Irrigation District.展开更多
Conductive elastomers combining micromechanical sensitivity,lightweight adaptability,and environmental sustainability are critically needed for advanced flexible electronics requiring precise responsiveness and long-t...Conductive elastomers combining micromechanical sensitivity,lightweight adaptability,and environmental sustainability are critically needed for advanced flexible electronics requiring precise responsiveness and long-term wearability;however,the integration of these properties remains a significant challenge.Here,we present a biomass-derived conductive elastomer featuring a rationally engineered dynamic crosslinked network integrated with a tunable microporous architecture.This structural design imparts pronounced micromechanical sensitivity,an ultralow density(~0.25 g cm^(−3)),and superior mechanical compliance for adaptive deformation.Moreover,the unique micro-spring effect derived from the porous architecture ensures exceptional stretchability(>500%elongation at break)and superior resilience,delivering immediate and stable electrical response under both subtle(<1%)and large(>200%)mechanical stimuli.Intrinsic dynamic interactions endow the elastomer with efficient room temperature self-healing and complete recyclability without compromising performance.First-principles simulations clarify the mechanisms behind micropore formation and the resulting functionality.Beyond its facile and mild fabrication process,this work establishes a scalable route toward high-performance,sustainable conductive elastomers tailored for next-generation soft electronics.展开更多
文摘The environment and its preservation are becoming more and more dependent on ecological development in an age of accelerating climate risk,biodiversity loss,and pressures of pollution.This review summarizes the frontiers of innovation that are capable of enhancing integration of human development and ecological integrity,and how the interaction between technical,ecological,and institutional innovations can produce real-world results.We initially discuss developing ecological innovations that offer new opportunities to urban development,such as low-impact cities,ecological infrastructure,clean energy transitions,and biodiversity-informed siting,and digital decision-support systems enhancing planning and resource efficiency.Then,we evaluate progress in the field of preservation and restoration,with a particular focus on nature-based solutions,a process-based approach to restoration science,connectivity conservation,and a watershed-scale and seascape-scale approach to restore resilience and help recover biodiversity.In these spheres,we discover measurement,monitoring,and verification(MRV),one of the main pillars of scale alongside remote sensing,automated field monitoring,environmental Deoxyribonucleic Acid(DNA),and Artificial Intelligence(AI)-enabled analytics,increasing the range of trackable and manageable indices as well as creating new issues with baselines,uncertainty,and data ethics.Lastly,we compare governance,finance,and equity as key conversion processes that can turn innovations into sustainable dividends with authenticity principles,however,of additionality,permanence,and leakage avoidance,and with rightsbased and redistributive mechanisms and approaches that reinforce legitimacy.We end by providing a portfolio roadmap of prioritization of the interventions that have high co-benefits and the identification of critical research and institutional gaps to provide net-positive ecological results.
基金supported by Natural Science Foundation of Xiamen,China(No.3502Z20227232)the STS Project of Fujian-CAS(No.2023T3018)Bureau of International Cooperation,Chinese Academy of Sciences(No.322GJHZ2022035MI).
文摘Anammox bacteria in constructed wetlands(CWs)play pivotal role in sustainable nitrogen transformation,yet existing studies lack comprehensive analysis of environmental gradients and microbial interactions,both key factors in anammox bacteria enrichment.This study investigated the mechanisms driving anammox bacteria enrichment in lab-scale simulated CWs treating high-nitrogen wastewater,focusing on bacterial community re-sponses across wetland layers with various strategies,including continuous up-flow influent,nitrogen loading increase,effluent recirculation,intermittent influent,and anammox bacteria inoculation.Results showed that total relative and absolute abundances of anammox bacteria ranged from 0.77%to 12.50%and from 0.13 to 6.46×10^(7) copies/g,respectively.Dissolved oxygen and pH had significant positive correlations with the absolute abundance of anammox bacteria,while organic matter and nitrate negatively impacted their relative abundance.Permutational multivariate analysis of variance indicated that spatial heterogeneity explained more variation in anammox bacteria abundance(43.44%)compared to operational strategies(8.58%).In terms of microbial interactions,60 dominant species exhibited potential correlations with anammox bacteria,comprising 170 interactions(105 positive and 65 negative),which suggested that anammox bacteria generally foster cooperative relationships with dominant bacteria.Notably,significant interspecies interactions were observed between Candidatus Kuenenia(dominant anammox bacteria in CWs)and species within the genera Chitinivibrio-nia and Anaerolineaceae,suggesting that microbial interactions primarily manifest as indirect facilitative effects rather than direct mutualistic relationships.Given that the Normalized Stochasticity Ratio in CWs were<50%,this study inferred that environmental gradients have greater influence on anammox bacteria than microbial interactions.
文摘In Chinas ecological environment, environmental pollution and climate change are two important problems. With the continuous acceleration of urbanization and urbanization process, the deep development of various industries is becoming more and more harmful to the ecology. In particular, the continuous deterioration of the atmosphere has led to the gradual emergence of adverse factors such as global climate change, which not only poses a certain threat to the human body, but also causes great damage to the long-standing green ecosystem. At present, Chinas environmental problems are still very serious, we must strengthen the environmental monitoring, to ensure the implementation of environmental protection work. In view of this situation, the relevant departments should strengthen environmental monitoring, formulate corresponding laws and regulations, strengthen environmental monitoring equipment, technical and management personnel, fundamentally improve the overall level of environmental monitoring, curb environmental problems from the source, and promote sustainable development.
文摘With the continuous acceleration of urban construction and the continuous increase of urban population, the sewage discharge increases year by year and the treatment difficulty gradually increases, which seriously damages the urban ecological environment and reduces the quality of life of people. At the same time, some cities have low sewage treatment efficiency due to shortage of funds, backward technology, aging equipment and other problems, which further restrict the development of cities. In order to solve the sewage treatment problem and improve the utilization rate of water resources, each city must carry out sewage treatment planning according to the actual development situation, innovate the sewage treatment process and improve the sewage treatment efficiency, laying a solid foundation for people's water safety and the city's resource protection.
文摘In order to improve the efficiency and quality of environmental field investigation,as well as realize real-time image data information sharing between the field environment and the investigation center,this paper first analyzes the application advantages of panoramic technology,followed by the types of panoramic technology,and finally takes the UAV panoramic technology as an example to demonstrate the application process of panoramic technology in environmental field investigation for the reference of relevant personnel.
文摘With the development of the times, people are facing more and more serious environmental pollution problems in their life. For example, the reduction of air quality not only affects peoples normal life, but also may increase the probability of people suffering from lung diseases, which is not conducive to the rapid development of cities. Green chemical technology is an effective method to deal with pollution problems in modern society. Using green chemical technology to deal with environmental pollution can not only achieve the goal of treating environmental pollution, but also avoid further pollution to the environment, which plays a positive role in improving the environmental quality of cities.
文摘With the continuous advancement of economic globalization, Chinas economic development level has been continuously improved. However, in the whole process, the impact on the natural ecological environment and peoples home on which to live cannot be ignored. In the last century, China was in an important period of economic restructuring and strengthening the countrys strength. Industrial development was used to promote the countrys economic construction. Under the extensive industrial development model, the environmental pollution problem became more and more serious, and various air pollution, soil pollution and water pollution problems emerged one after another. With the transformation of Chinas economic system, a sustainable development strategic plan was put forward. The 14th Five-Year Plan even took "double carbon" as an important goal for Chinas future development. Therefore, it is also necessary to strengthen the exploration of the use of ecological environment monitoring technology and environmental protection technology, master the correct way of using the technology, and lay a solid foundation for Chinas ecological environment protection work.
基金supported by the National Natural Science Foundation of China (Nos.52072152 and 51802126)Jiangsu University Jinshan Professor Fund,Jiangsu Specially-Appointed Professor Fund,the Open Fund from Guangxi Key Laboratory of Electrochemical Energy Materials,Zhenjiang“Jinshan Talents”Project 2021,China PostDoctoral Science Foundation (No.2022M721372)+1 种基金the“Doctor of Entrepreneurship and Innovation”in Jiangsu Province (No.JSSCBS20221197)the Postgraduate Research&Practice Innovation Program of Jiangsu Province (No.KYCX22_3645).
文摘In the quest for effective solutions to address Environ.Pollut.and meet the escalating energy demands,heterojunction photocatalysts have emerged as a captivating and versatile technology.These photocatalysts have garnered significant interest due to their wideranging applications,including wastewater treatment,air purification,CO_(2) capture,and hydrogen generation via water splitting.This technique harnesses the power of semiconductors,which are activated under light illumination,providing the necessary energy for catalytic reactions.With visible light constituting a substantial portion(46%)of the solar spectrum,the development of visible-light-driven semiconductors has become imperative.Heterojunction photocatalysts offer a promising strategy to overcome the limitations associated with activating semiconductors under visible light.In this comprehensive review,we present the recent advancements in the field of photocatalytic degradation of contaminants across diverse media,as well as the remarkable progress made in renewable energy production.Moreover,we delve into the crucial role played by various operating parameters in influencing the photocatalytic performance of heterojunction systems.Finally,we address emerging challenges and propose novel perspectives to provide valuable insights for future advancements in this dynamic research domain.By unraveling the potential of heterojunction photocatalysts,this reviewcontributes to the broader understanding of their applications and paves the way for exciting avenues of exploration and innovation.
文摘With the continuous improvement of China's economic level, chemical enterprises have been developed accordingly. However, the development of chemical enterprises will cause serious energy consumption and also cause serious pollution to the environment. Therefore, chemical enterprises should strengthen the use of energy conservation and environmental protection technology, and improve the importance of energy conservation and environmental protection technology, so that relevant personnel can fully grasp the operation points of energy conservation and environmental protection technology, so as to lay a good foundation for chemical enterprises to carry out environmental protection and energy conservation and emission reduction work.
基金supported by the Key Research and Development Project of Tianjin,China(23YFZCSN00040)。
文摘In recent years,environmental DNA(e DNA)has garnered significant attention as a novel tool in biodiversity monitoring,recognized for its efficiency,convenience,and non-invasiveness.Despite its extensive application in various ecological studies,such as conservation,invasion biology,biomonitoring and biodiversity survey assessment,its use in avian monitoring remains in its infancy.This review critically examines the potential and limitations of e DNA technology for avian monitoring,focusing on current advancements and ongoing challenges in this emerging field.Water and air are the primary environmental media for collecting avian e DNA,although other sources like spider webs and plant flowers have been explored as well.Notably,airborne e DNA has been reported to capture the highest diversity of avian species.While avian e DNA technology has shown promise for monitoring rare and endangered species and assessing avian diversity,significant challenges remain,particularly in sampling strategies,DNA extraction methodology,primer selection,and ascertain abundance.Additionally,we discussed the factors influencing the production,transportation,and degradation of avian e DNA in the environment.Finally,we suggested future research directions,including optimizing sampling strategies,developing avian-specific universal primers,expanding avian DNA barcode databases,enhancing e DNA detectability,and integrating environmental RNA(e RNA)and e DNA approaches.
基金the support of the National Natural Science Foundation of China(NSFC)(Nos.52425003,22188102,and 52400144)the Project funded by China Postdoctoral Science Foundation(Nos.BX20220325 and 2023M743707)the Youth Innovation Promotion Association,CAS(Nos.Y2021020 and Y2022023).
文摘Air pollution is a major challenge to the improvement of urban environmental quality.The control of air pollution still faces severe challenges,especially in developing countries,such as ozone pollution control.Ozone is a typical secondary air pollutant,and its formation chemistry from its precursors(NOx and volatile organic compounds)is highly nonlinear,which caused the emission reduction of its precursors is not always effective and therefore new assisted approaches to control of ozone pollution are needed.Photocatalysis and ambient catalysis technology are expected to be applied in open atmosphere as a new booster to the direct purification of air pollutants in emission sources.In this perspective,we summarize the current knowledge about the photocatalysis and ambient catalysis technology for the removal of air pollutants under natural photothermal conditions.Based on these technologies,we propose the concept of“Environmental Catalytic City”,which refers to the spontaneous purification of low concentration urban air pollutants in the atmosphere by catalytic materials coating on the artificial surfaces,such as building surfaces in the city.In this way,the urban city with self-purification function can remove air pollution without additional energy consumption.The further improvement,development,and application of the“Environmental Catalytic City”is also discussed.
基金supported by the National Modern Agricultural Industry Technology System(CARS-45-33)Innovation Team of Tianjin Freshwater Aquaculture Industry Technology System(ITTFRS2021000-002,ITTFRS2021000-001)+1 种基金Tianjin Science and Technology Plan Project(24KPHDRC00280,24ZYCGSN00250,23YDTPJC00420)the Open Fund Project of Key Laboratory of Ocean Observation Technology,MNR(No.2023klootA03).
文摘The sustainable development of aquaculture industry is deeply constrained by pathogens and diseases,and traditional detection methods are difficult to adapt to the needs of intensive aquaculture due to low efficiency and insufficient sensitivity.This article reviews the progress of rapid detection technology for aquatic pathogens based on molecular biology,immunology,biosensors,etc.,and analyzes the application value of innovative methods such as isothermal amplification and CRISPR.This technology injects core momentum into the new quality productivity of fisheries through early and precise identification of pathogens:reducing aquaculture losses to improve resource efficiency,promoting the transformation of aquaculture models to data-driven,ensuring the safety of aquatic products to enhance the competitiveness of the industry chain.The current technology has shortcomings such as lagging standardization,weak on-site anti-interference ability,and insufficient recognition of new pathogens.In the future,we need to focus on technological integration and innovation,intelligent upgrading,and standardization construction,promote technology from laboratories to industrial applications,and provide continuous support for the high-quality development of fisheries.
文摘Objective:To investigate the effect of a water-soluble nacre extract derived from Pinctada fucata on skeletal muscle aging.Methods:Naturally aged C57BL/6J mice received nacre extract mixed in chow for 12 weeks.Forelimb grip strength,hanging performance,and locomotor activity were assessed.Skeletal muscle remodeling and signaling were evaluated by histology and immunostaining for fibrosis,contractile-marker features,senescence-and DNA damage-associated markers,inflammatory signaling,and mitochondrial proteins.Oxidative status was assessed by determining antioxidant capacity,lipid peroxidation,and oxidative DNA damage.Transcriptomic profiling was also performed,and selected targets were validated by quantitative RT-PCR and immunostaining.In addition,differentiated C2C12 myotubes were exposed to doxorubicin and treated with nacre extract;senescence-associated β-galactosidase,DNA damage signaling,and cell viability were measured.Results:Nacre extract increased forelimb grip strength and showed a positive trend in hanging performance without altering spontaneous locomotion.It also reduced collagen deposition,preserved contractile-marker immunoreactivity,attenuated senescence-and inflammation-associated signals,and increased mitochondrial protein immunoreactivity.Oxidative DNA damage was notably reduced by nacre extract.Transcriptomics indicated modulation of stress/redox programs and increased neurotrophic tyrosine kinase receptor type 2 expression,which were supported by tissue-level validation.In C2C12 myotubes,nacre extract suppressed doxorubicin-induced senescence-associated phenotypes without loss of cell viability.Conclusions:Water-soluble nacre extract mitigates skeletal muscle aging through coordinated modulation of oxidative stress,inflammation,mitochondrial features,and cellular senescence.
基金supported by a PETRONAS-Academia Collabora-tion Dialogue 2022 Grant[Grant number PACD 2022]from PETRONAS Research Sdn.Bhd。
文摘The atmospheric surface layer of the tropical coastal ocean is commonly very unstable and experiences weakwind conditions.How the latent(LE)and sensible(H)heat fluxes behave under such conditions are unclear because of the lack of observation stations in the tropics.Thus,this study aims to analyze LE and H and the microclimate parameters influencing them.The authors deployed an eddy covariance system in a tropical coastal region for seven months.The microclimate parameters investigated were wind speed(U),vapor pressure deficit(Δe),temperature difference(ΔT),wind-vapor pressure deficit(UΔe),wind-temperature difference(UΔT),and atmospheric stability(z/L),where z is height and L is the Monin–Obukhov length.On the daily time scale,the results show that LE was more associated with U thanΔe,while H was more related toΔT than U.Cross-wavelet analysis revealed the strong coherence in the LE-U relationship for periods between one and two days,and for H–ΔT,0.5 to 1 day.Correlation and regression analyses confirmed the time series analyses results,where strong positive correlation coefficients(r)were obtained between LE and U(r=0.494)and H andΔT(r=0.365).Compared to other water bodies,the transfer coefficient of moisture(CE N)was found to be small(=0.40×10^(-3))and independent of stability;conversely,the transfer coefficient of heat(CH N)was closer to literature values(=1.00×10^(-3))and a function of stability.
基金supported by the Natural Science Foundation of Xiamen,China(No.3502Z20227238)the National Natural Science Foundation of China(Nos.22276181 and 52300143)+3 种基金the Science and Technology Planning project of Fujian Province,China(Nos.2022H0045 and 2023I0035)the Youth Innovation Promotion Associ-ation CAS(No.2019307)China Postdoctoral Science Foundation(No.2022M723082)the Youth Science and Technology Innovation Pro-gram of Xiamen Ocean and Fisheries Development Special Funds(No.23ZHZB032QCA20).
文摘A novel hierarchical porous metal-organic framework(MOF)-based hollow carbon nanofiber mat(CNFM)was prepared through a facile electrospinning process followed by carbonization.Two immiscible polymers,polyacrylonitrile/polymethyl methacrylate(PAN/PMMA),and porous zeolitic imidazolate framework-8(ZIF-8)particles were selected as components for the electrospinning suspension.The resulting PPZ-CNFM-1–2–2(PAN:PMMA:ZIF8=1:2:2,mass ratio)exhibited a hollow tubular structure with uniformly distributed dense hollow-spheres on the tube walls.The obtained CNFM possessed a high Brunauer-Emmett-Teller specific surface area(SBET)of 1696 m2/g and total pore volume of 2.74 cm^(3)/g,which are comparable to those achieved by traditional physical or chemical activation methods.This MOF-based CNFM demonstrated excellent adsorption performance towards ciprofloxacin(CIP),exhibiting a high static adsorption capacity of approximately 600 mg/g and achieving adsorption equilibrium withing only 1 h.The exceptional adsorption capacity can be attributed to its high SBET and abundant pores that accommodate CIP molecules,while the rapid adsorption rate is facilitated by the presence of hollow-sphere and hollow tubular structures in the carbon nanofibers.Furthermore,the study revealed the significant contributions of pore-filling effect during the adsorption process.Fixed-bed experiments confirmed that this MOF-based hollow CNFM holds great potential for large-scale applications in purifying CIP-contaminated water.
基金Supported by the National Natural Science Foundation of China(No.32170204)。
文摘This study presents a comprehensive phylogenetic analysis on Batrachospermaceae based on key taxonomic identifiers(rbcL,psaA,psbA,and COI-5P)from some genera.To systematically explore the phylogenetic relationships and taxonomy within Batrachospermaceae,we integrated molecular and morphological data,and explored the phylogeny,character evolution,and ancestral geographical origin and provided a theoretical support for the classification and geographic origination of Batrachospermaceae.Our findings reveal distinct relationships within the phylogenetic tree.Notably,10 genera(Sirodotia,Batrachospermum,Tuomeya,Volatus,Lympha,Nothocladus,Torularia,Sheathia,Nocturama,and Petrohua)are closely associated in the rbcL phylogenetic tree.Additionally,four genera(Kumanoa,Hoefkenia,Notohesperus,and Virescentia)exhibit high support ratios,indicating their close interrelations.Other genera,including Paludicola,Visia,Acarposporophycos,Macrosporophycos,Visioidea,Balliopsis,and Psilosiphon,exhibit clustering traits.Furthermore,the multigene sequences provide a robust support for Montagnia that forms a monophyletic group.Ancestral reconstruction of morphological characters identifies nine primitive character states,including whorl,fascicle length,cortical cells,secondary fascicles,the shape of carpogonical branch,spermatangia,carposporophyte,carpogonium and trichogyne,with Visia likely representing ancestral traits in Batrachospermaceae.Furthermore,geographical origin maps suggest a potential common ancestral of Batrachospermaceae origin in the American continent.Additional to conventional analyses,including evolutionary and ancestral reconstruction investigations into key morphological characters,we attempt to reconstruct the biogeography within the Batrachospermaceae,thus contributing to a nuanced understanding of its origin.
基金supported by the National Key R&D Program of China(No.2022YFC3701500)the Key R&D Plan Projects of Zhejiang Province(No.2024SSYS0072)Zhejiang Provincial Natural Science Foundation(No.LDT23E0601).
文摘Ship operations are crucial to global trade,and their decarbonization is essential to mitigate climate change.This study evaluates the economic viability of existing and emerging decarbonization technologies in maritime shipping using the levelized cost of energy methodology.It includes a detailed comparative analysis based on essential criteria and sensitivity assessments to highlight the economic impacts of technological advancements.Key factors influencing total costs include fuel costs,carbon pricing,and energy demands for carbon capture.The findings reveal that methanol is more cost-effective than heavy fuel oil(HFO)when priced below 3000 CNY/t,assuming HFO costs 4400 CNY/t.Additionally,methanol with post-combustion carbon capture is less expensive than pre-combustion carbon capture.When carbon prices rise above 480 CNY/t,carbon capture technologies prove more economical than purchasing carbon emission allowances for HFO and liquefied natural gas.Enhanc-ing the use of exhaust gas waste heat is recommended for cost savings.Post-combustion carbon capture also shows greater efficiency,requiring about 1.1 GJ/t less energy than pre-combustion methods,leading to lower overall costs.Future research should focus on market mechanisms to stabilize fuel prices and develop less energy-intensive carbon capture technologies.This study offers critical insights into effective decarbonization strategies for advancing global maritime trade in the present and future.
基金supported by Natural Science Foundation of China(Nos.U23B20165 and 52170085)National Key R&D Program International Cooperation Project(No.2023YFE0108100)+1 种基金Key Project of Natural Science Foundation of Tianjin(No.21JCZDJC00320)Fundamental Research Funds for the Central Universities,Nankai University.
文摘Chlorinated antibiotics pose great challenges in efficient removal,while for the first time,this work greatly enhanced their electrocatalytic dechlorination performance by construction of non-noble metal Co_(3)O_(4)/g-C_(3)N_(4) heterojunctions to improve process cost-effectiveness.The Co_(3)O_(4)/g-C_(3)N_(4) heterojunction demonstrated an effective removal of 93.6%thiamphenicol(TAP)within 45 min,with the rate constant(0.0584 min^(-1))that was 2.4 and 2.8 times that of Co_(3)O_(4) and g-C_(3)N_(4) alone,respectively.The formation of heterojunctions facilitated electron transfer,enriched the electron density on Co_(3)O_(4),and enhanced the adsorption of pollutants as well as the desorption of degradation intermediates.The enhanced production of atomic hydrogen(H*)of Co_(3)O_(4)/g-C_(3)N_(4),which increased by 13.6-28.2 times,contributed more to pollutant removal(64.0%),much higher than that of Co_(3)O_(4)(37.3%)and g-C_(3)N_(4)(6.1%).The energy barrier for H_(2) formation on Co_(3)O_(4)/g-C_(3)N_(4)(0.75 eV)was higher than that on Co_(3)O_(4)(-1.84 eV),supporting that it could stabilize H*and inhibit the formation of H_(2).The Co_(3)O_(4)/g-C_(3)N_(4) heterojunction exhibited stable performance with less impact by pH and co-existing ions,and posed effectiveness for the dechlorination of typical chlorinated antibiotics.This study offers an efficient and sustainable strategy for constructing heterojunctions to enhance the performance of non-noble metal catalysts in electrocatalytic dechlorination.
基金Supported by Special Fund Project for the Transformation of Scientific and Technological Achievements in Inner Mongolia Autonomous Region(2021CG0013)Bayannur City Science and Technology Plan Project(K202014)+1 种基金Inner Mongolia Autonomous Region Science and Technology Plan Project(2022YFHH0088)Research Special Project of the Education Department of Inner Mongolia Autonomous Region(STAQZX202320).
文摘[Objectives]To explore the control mode of farmland drainage pollutants and investigate the effects of ecological ditch and wetland on reducing farmland drainage pollutants in Hetao Irrigation District.[Methods]Based on the demonstration construction project of the ecological ditch-constructed wetland system in the Hetao Irrigation District,an experimental study was conducted from July to September 2023 to investigate the interception and purification effects of ecological ditches,constructed wetlands,and the combined ecological ditch-constructed wetland system on farmland drainage pollutants.Key water quality parameters measured included total nitrogen(TN)concentration and total phosphorus(TP)concentration.[Results]Different treatment modes of ecological ditches and constructed wetlands have a certain removal effect on nitrogen and phosphorus pollutants in water bodies.The ecological ditches treated with Astragalus laxmannii,Melilotus officinalis,Medicago sativa,bio-ball substrate,and bio-sheet substrate showed reduction efficiencies for TN and TP of 21.09% and 23.84%,12.06% and 26.67%,20.08% and 34.15%,23.65% and 20.56%,and 19.92% and 25.83%,respectively.The emergent plant area showed reduction efficiencies of 24.28%for TN and 17.89%for TP,while the submerged plant area achieved a reduction efficiency of 10.21%for both TN and TP.Among the different treatment modes,the ecological ditch with M.sativa performed better in TP removal,whereas the bio-ball substrate treatment mode showed higher effectiveness in TN removal.In addition,the emergent plant area exhibited better TP removal performance,while the submerged plant area was more effective in TN removal.The combined system of ecological ditch and constructed wetland achieved removal rates of 37.55% for TN and 11.47% for TP.It effectively facilitates the step-by-step interception and adsorption purification of pollutants,thereby showing significant removal and purification effects on nitrogen and phosphorus contaminants.This contributes to mitigating agricultural non-point source pollution.[Conclusions]The combined ecological ditch-constructed wetland system serves dual functions of agricultural drainage and pollutant interception and purification.It reduces the pollution load of farmland drainage on receiving water bodies to some extent and mitigates agricultural non-point source pollution.Therefore,it is a relatively suitable technology for managing agricultural non-point source pollution in the Hetao Irrigation District.
基金supported by National Natural Science Foundation of China(No.52103044)Double First-Class Initiative University of Science and Technology of China(KY2400000037)the Young Talent Programme(GG2400007009).
文摘Conductive elastomers combining micromechanical sensitivity,lightweight adaptability,and environmental sustainability are critically needed for advanced flexible electronics requiring precise responsiveness and long-term wearability;however,the integration of these properties remains a significant challenge.Here,we present a biomass-derived conductive elastomer featuring a rationally engineered dynamic crosslinked network integrated with a tunable microporous architecture.This structural design imparts pronounced micromechanical sensitivity,an ultralow density(~0.25 g cm^(−3)),and superior mechanical compliance for adaptive deformation.Moreover,the unique micro-spring effect derived from the porous architecture ensures exceptional stretchability(>500%elongation at break)and superior resilience,delivering immediate and stable electrical response under both subtle(<1%)and large(>200%)mechanical stimuli.Intrinsic dynamic interactions endow the elastomer with efficient room temperature self-healing and complete recyclability without compromising performance.First-principles simulations clarify the mechanisms behind micropore formation and the resulting functionality.Beyond its facile and mild fabrication process,this work establishes a scalable route toward high-performance,sustainable conductive elastomers tailored for next-generation soft electronics.
