Patna is among the cities high populated at risk of ecological and environmental deterioration due to a variety of human activities,such as poor land cover management.One of the most crucial elements of a successful l...Patna is among the cities high populated at risk of ecological and environmental deterioration due to a variety of human activities,such as poor land cover management.One of the most crucial elements of a successful land resource management plan is the evaluation of Land Use Land Cover(LULC).Over the past 20 years,our planet’s land cover resources have undergone substantial changes due to rapid development.The Land Use Land Cover(LULC)categories of the Patna Urban Agglomeration(PUA),including water bodies,agricultural land,barren land,built-up areas,and vegetation,were identified using Geographic Information System(GIS)techniques.Three multi-temporal images were analyzed and classified through supervised classification using the maximum likelihood method.By comparing three separately created LULC categorized maps from 1990 and 2024,temporal changes were analyzed.In order to update land cover or manage natural resources,it is vital to use change detection as a tool to identify changes in LULC over time in PUA,Patna between 1990,2010 and 2024.According to their respective Kappa coefficients,the accuracy rates for 1990,2010 and 2024 LULC are 91.66 and 94.93,respectively.An accuracy evaluation was conducted to determine the correctness of the classification system and to determine the efficacy of the LULC classification maps.One hundred reference test pixels were identified.There have been found significant changes in the LULC were built up area has increased doubled in last thirty-four years of timeline.展开更多
From June 4 to 17,2025,the Harmony Together for a Friendly Future-Exhibition of Intermitioncil Youth Photography,jointly hosted by China Center of International Cultural Exchange and Tourism Promotion(CETP)nnd China C...From June 4 to 17,2025,the Harmony Together for a Friendly Future-Exhibition of Intermitioncil Youth Photography,jointly hosted by China Center of International Cultural Exchange and Tourism Promotion(CETP)nnd China Cultural Center in Copenhagen,was successfully held at the China Cultured Center in Copenhagen.展开更多
From June 4 to 17,2025.the Harmony Together for Friendly future-Exhibition of International Youth Photography.jointly Hosted by China Center for International Culture and Tourism Exchanges(CCICTE) and China Cultural C...From June 4 to 17,2025.the Harmony Together for Friendly future-Exhibition of International Youth Photography.jointly Hosted by China Center for International Culture and Tourism Exchanges(CCICTE) and China Cultural Center in Copenhagen.展开更多
Mammals are critical reservoirs of human infectious diseases and the spillover of viruses is related to climate conditions.We conducted meta-transcriptomic sequencing of 226 mammals(bats,rodents,hedgehogs,and shrews)r...Mammals are critical reservoirs of human infectious diseases and the spillover of viruses is related to climate conditions.We conducted meta-transcriptomic sequencing of 226 mammals(bats,rodents,hedgehogs,and shrews)representing 20 species collected across eight cities in south China between 2018 and 2024.Samples included internal organs,oropharyngeal and anal swabs,and feces.We identified 63 vertebrate-associated viruses,including 34 novel viruses.Phylogenetic analysis revealed six viruses with potential infection risks to humans or domestic animals due to their close phylogenetic relationships with known pathogens.Cross-species transmission was observed in 14.3%(9/63)of viruses,shared by at least two host species,with bats,particularly Rhinolophus and Hipposideros,serving as key hubs for viral circulation and zoonotic spillover.Virome composition varied substantially among mammalian species and geographic regions(adonis test,R^(2)=0.50,P=0.001).Generalized linear models quantified the roles of host taxonomy,ecotypes,and meteorological factors in shaping viral diversity,demonstrating host taxonomy(at the order level)as a predominant role(25.70%deviance explained),followed by ecotypes(10.27%deviance explained).Phylogenetic analysis conducted using our betacoronavirus sequences,as well as betacoronavirus sequences derived from 2.0×10^(4) bats sampled in China between July 2013 and March 2024,revealed that no betacoronaviruses exhibited closer phylogenetic relationships to SARS-CoV-2 than the known strains(e.g.,RaTG13).These findings provide critical insights into virus evolution,transmission,and ecological determinants,which are essential for the prevention of emerging infectious diseases.展开更多
Walking into the Institute of Plateau Biology(IPB in short)in Lhasa,Xizang,vice director Yang Le exchanged pleasantries with the guard in fluent Tibetan.Originally from Hunan Province,he has worked and lived here in X...Walking into the Institute of Plateau Biology(IPB in short)in Lhasa,Xizang,vice director Yang Le exchanged pleasantries with the guard in fluent Tibetan.Originally from Hunan Province,he has worked and lived here in Xizang for over 20 years."Now I see Xizang as my home,"he said with a smile.展开更多
This study examines the spatial and temporal patterns of wetland degradation in Delhi from 1991 to 2021 using remote sensing and GIS techniques.The Automated Water Extraction Index(AWEI)was applied to pre-monsoon Land...This study examines the spatial and temporal patterns of wetland degradation in Delhi from 1991 to 2021 using remote sensing and GIS techniques.The Automated Water Extraction Index(AWEI)was applied to pre-monsoon Landsat imagery to delineate surface water bodies over the past 30 years accurately.Supervised classification was employed to generate land use maps,while census data was utilized to analyze urbanization trends across the region.Classification accuracy was assessed using Google Earth reference data through a confusion matrix,ensuring the reliability of the land cover analysis.Results reveal a significant decline in wetland extent,especially in densely populated and rapidly urbanizing districts such as North West,South,and East Delhi.During this time,the urban population increased from 52.7% to 97.4%,accompanied by a 70.2% expansion of built-up areas,while wetlands contracted from 32.9 km^(2) to 30.2 km^(2).South Delhi experienced the most severe wetland loss,with water body coverage dropping from 0.800% to 0.025%,whereas North East and Central Delhi maintained higher wetland coverage due to the influence of the Yamuna River and targeted conservation efforts.The study highlights the strong linkage between urban growth and wetland decline,which threatens biodiversity,groundwater recharge,and ecological stability.These findings emphasize the urgent need for integrated urban planning and conservation policies to safeguard wetlands,thereby promoting sustainability and water security in the National Capital Region.展开更多
From the concept of the "Production-Living-Ecology" Spaces, this paper sorts out the theoretical basis, division principles, and division methods of the "Production-Living-Ecology" Spaces, and then...From the concept of the "Production-Living-Ecology" Spaces, this paper sorts out the theoretical basis, division principles, and division methods of the "Production-Living-Ecology" Spaces, and then proposes future prospects for them. The integration of theory and practice of "Production-Living-Ecology" Spaces is currently in a stage of in-depth exploration and practical application. Future research should fully recognize the importance and necessity of theoretical research on "Production-Living-Ecology" Spaces under the new situation, and consolidate the theoretical foundation for research on the development and protection of territorial space in the new era.展开更多
Since the new era in China,the long-term traditional rural development path,characterized by the“pollute first,treat later”model,has proven insufficient to meet the needs of sustainable development.The growing contr...Since the new era in China,the long-term traditional rural development path,characterized by the“pollute first,treat later”model,has proven insufficient to meet the needs of sustainable development.The growing contradiction between rural economic development and ecological environmental degradation urgently needs to be addressed.Under the guidance of the Party and the state,there is a strong emphasis on green rural development,making the transformation of the rural green development path imperative.This paper takes rural ecological development as the research basis and innovatively integrates the“educational research”model,aiming to provide practical strategies for the sustainable development of abandoned mine rural landscapes.Taking Datukuang in Xinhe Village,Dadukou District,Chongqing as an example,this project breaks through the technical path dependence of traditional engineering restoration,creatively implants research function modules such as natural education,geological science popularization,and ecological experience,transforming the abandoned mine pit into a composite ecological education demonstration base integrating environmental restoration,science popularization education,and cultural tourism experience.It has opened up a new paradigm for rural revitalization with“mine restoration+research economy”,providing an innovative practice sample for solving the transformation dilemma of resource-based villages.展开更多
Vegetation ecological quality(VEQ)is not only influenced by meteorological drought(MD)but also exerts a certain degree of regulatory effect on it.Clarifying the relationship between the two is crucial for ecological c...Vegetation ecological quality(VEQ)is not only influenced by meteorological drought(MD)but also exerts a certain degree of regulatory effect on it.Clarifying the relationship between the two is crucial for ecological conservation efforts.However,the interactions between VEQ and MD and its driving mechanisms in karst mountain regions with high surface heterogeneity remain unclear,and the lack of exploration of this interaction under different subregions hinders further progress in ecological conservation.This study took Guizhou Province,characterized by significant surface heterogeneity and extensive karst formations,as a research case.By dividing the region into different landform regions,we quantified the coupling coordination degree(CCD)between VEQ and MD using the coupling coordination degree model to elucidate their interaction and analyzed its driving forces using the Geodetector model.Results indicated that:(1)From 2001 to 2020,the CCD between VEQ and MD in Guizhou remained at a moderate coordination level,with increasing benign interactions,though significant variations in CCD trends were observed across landform regions.MD is the pivotal subsystem that determines CCD changes.(2)The dominant driving factors of CCD vary by landform,with soil moisture,precipitation,or population density as primary influences.Soil moisture has a stronger effect in karst regions,and its interaction with other factors surpasses the effects of individual factors.(3)To achieve benign development between VEQ and MD.In karst regions,attention should be focused on the impact of soil moisture and human activities on CCD.While non-karst regions have favorable vegetation and hydrothermal conditions,improper development can lead to vegetation degradation,and abnormal hydrothermal conditions,which could trigger a decline in CCD.Therefore,regulating human activities in non-karst regions is also crucial.This work serves as a scientific foundation for formulating ecological preservation strategies in Guizhou and other karst mountain regions.展开更多
Mountainous minority regions in China,characterized by abundant natural and cultural resources,ecologically fragile environments,and often geographically remote locations,pose distinct developmental challenges and opp...Mountainous minority regions in China,characterized by abundant natural and cultural resources,ecologically fragile environments,and often geographically remote locations,pose distinct developmental challenges and opportunities.Despite the complexity and typicality of Chinese mountainous ethnic minority regions in terms of eco-cultural tourism and land use dynamics,the interplay among tourism development,land use changes,and landscape ecological risk in these specific contexts has received insufficient attention.To explore how eco-cultural tourism development in ethnic minority mountainous regions affects land use and landscape ecology,this study investigates the evolution of land use in Southeast Guizhou Province from 1980-2020,integrating GIS spatial analysis,the landscape pattern index and landscape ecological risk index analysis.Over the past four decades(1980-2020),eco-cultural tourism has driven significant land use transformations characterized by substantial expansion of building land,growth of ecological land(notably forest land and water areas),and reduction of cultivated land.Concurrently,landscape ecological risk evolved through distinct phases-showing an overall increase during 1980-2000 with expanding medium-risk zones,followed by stabilization from 2000-2020.Tourism development accelerated these land transitions while fostering multifunctional compound land uses,enhancing both land value and utilization efficiency.Crucially,eco-cultural tourism in ethnic regions demonstrates capacity to reconcile ecological conservation with economic development,providing transferable models for similar regions globally.展开更多
As the sole obligate symbiotic birds in Africa,oxpeckers offer a unique model for studying symbiotic relationships.Due to the multitrophic level they occupy and the context dependent foraging behavior they exhibit,the...As the sole obligate symbiotic birds in Africa,oxpeckers offer a unique model for studying symbiotic relationships.Due to the multitrophic level they occupy and the context dependent foraging behavior they exhibit,the type of symbiotic relationship can be variable.In addition to providing a cleaning service to the host by removing ticks,oxpeckers frequently feed on blood,mucus,and saliva,inflicting potential damage on the host.Here,we used DNA metabarcoding on faecal samples to analyze the taxonomic composition of the trophic interactions of the Yellow-billed Oxpecker(Buphagus africanus)and Red-billed Oxpecker(B.erythrorhynchus)in northeastern Namibia.In contrast to conventional methods,DNA metabarcoding allows for a detailed identification of dietary resources encompassing both mammal hosts and consumed arthropods within the same samples.With this information,we examined differences in the diet composition between oxpecker species and localities,as well as the co-occurrence between host and arthropod species.Our findings revealed that oxpeckers predominantly source their diet from mammals,ticks,and flies;however,ticks and flies rarely co-occur in the diet of an individual.We observed variability among individuals in their feeding ecology,which is strongly correlated with locality and,to a lesser extent,with the mammal host.We noted a high degree of mobility between hosts within relatively short periods,with 32%of the samples showing traces of at least two mammal hosts.This study illustrates the dynamic foraging behavior of these specialized symbiotic birds,shedding light on their potential role in pest control services and disease transmission.展开更多
Forest habitats are critical for biodiversity,ecosystem services,human livelihoods,and well-being.Capacity to conduct theoretical and applied forest ecology research addressing direct(e.g.,deforestation)and indirect(e...Forest habitats are critical for biodiversity,ecosystem services,human livelihoods,and well-being.Capacity to conduct theoretical and applied forest ecology research addressing direct(e.g.,deforestation)and indirect(e.g.,climate change)anthropogenic pressures has benefited considerably from new field-and statistical-techniques.We used machine learning and bibliometric structural topic modelling to identify 20 latent topics comprising four principal fields from a corpus of 16,952 forest ecology/forestry articles published in eight ecology and five forestry journals between 2010 and 2022.Articles published per year increased from 820 in 2010 to 2,354 in 2021,shifting toward more applied topics.Publications from China and some countries in North America and Europe dominated,with relatively fewer articles from some countries in West and Central Africa and West Asia,despite globally important forest resources.Most study sites were in some countries in North America,Central Asia,and South America,and Australia.Articles utilizing R statistical software predominated,increasing from 29.5%in 2010 to 71.4%in 2022.The most frequently used packages included lme4,vegan,nlme,MuMIn,ggplot2,car,MASS,mgcv,multcomp and raster.R was more often used in forest ecology than applied forestry articles.R software offers advantages in script and workflow-sharing compared to other statistical packages.Our findings demonstrate that the disciplines of forest ecology/forestry are expanding both in number and scope,aided by more sophisticated statistical tools,to tackle the challenges of redressing forest habitat loss and the socio-economic impacts of deforestation.展开更多
The present review provides a compilation of the published data on the ecology and social behavior of tamarisk gerbils. Both field studies anddirect observations under semi-natural conditions provide evidence that the...The present review provides a compilation of the published data on the ecology and social behavior of tamarisk gerbils. Both field studies anddirect observations under semi-natural conditions provide evidence that the tamarisk gerbil is a nocturnal herbivorous rodent that lives in highlyseasonal habitats and displays seasonal fluctuations in reproduction and spatial organization. A typical feature of the tamarisk gerbils’ spatialorganization is higher mobility of males during the breeding season (as compared with the nonbreeding period) and formation of temporaryaggregations of males competing for access to receptive females;the composition of these aggregations was variable and depended on thereproductive condition of the females. Females tend to occupy exclusive home ranges irrespective of their reproductive condition. The matingsystem of the species can be defined as scramble competition polygyny with some features of polygynandry and promiscuity. The tamariskgerbil has distinct features of a solitary species and its social structure is primarily based on aggressive interactions or mutual avoidance ofconspecifics resulting in a dominance hierarchy among males and site-dependent dominance among females during the breeding season. Bythe end of the breeding season, males become less mobile and occupy nearly exclusive home ranges, consistent with solitary living. The mainfeatures of the spatial and social organization of this species, which distinguish it from other solitary rodents, are the higher mobility of malesand the formation of temporary multimale–multifemale aggregations during the breeding season. Overall, the data presented expand our understanding of socioecology of gerbils.展开更多
The effects of cast iron pipe corrosion onwater quality risk and microbial ecology in drinking water distribution systems(DWDSs)were investigated.It was found that trihalomethane(THMs)concentration and antibiotic resi...The effects of cast iron pipe corrosion onwater quality risk and microbial ecology in drinking water distribution systems(DWDSs)were investigated.It was found that trihalomethane(THMs)concentration and antibiotic resistance genes(ARGs)increased sharply in the old DWDSs.Under the same residual chlorine concentration conditions,the adenosine triphos-phate concentration in the effluent of old DWDSs(Eff-old)was significantly higher than that in the effluent of newDWDSs.Moreover,stronger bioflocculation ability andweaker hy-drophobicity coexisted in the extracellular polymeric substances of Eff-old,meanwhile,iron particles could be well inserted into the structure of the biofilms to enhance the mechanical strength and stability of the biofilms,hence enhancing the formation of THMs.Old DWDSs significantly influenced the microbial community of bulk water and triggered stronger mi-crobial antioxidant systems response,resulting in higher ARGs abundance.Corroded cast iron pipes induced a unique interaction system of biofilms,chlorine,and corrosion prod-ucts.Therefore,as the age of cast iron pipes increases,the fluctuation of water quality and microbial ecology should be paid more attention to maintain the safety of tap water.展开更多
With the rapid development of urbanization,landscape architecture has become an indispensable component of daily life.In order to achieve better landscape effects and protect the ecological environment,landscape ecolo...With the rapid development of urbanization,landscape architecture has become an indispensable component of daily life.In order to achieve better landscape effects and protect the ecological environment,landscape ecology theory can be integrated into landscape planning to carry out disciplinary crossing and integration research between landscape ecology and landscape architecture.In this study,based on the basic theories of landscape ecology,the waterfront landscape of Dapo Town was designed,with the aim to achieve ecological balance in planning,showcase biodiversity,and create a harmonious landscape ecological environment which can benefit both nature and people.This design combined artificial and natural elements while improving the natural environment,which promoted a harmonious relationship between humans and nature,thus enriching the spatial organization of the city,and playing a role in regulating the urban environment and climate.展开更多
Micro short drama is a new form of fictional narrative in the environment of digital intelligent media,which attracts the attention of the audience in the era of fragmentation and forms an explosive growth of the indu...Micro short drama is a new form of fictional narrative in the environment of digital intelligent media,which attracts the attention of the audience in the era of fragmentation and forms an explosive growth of the industrial market with the characteristics of short content,concentrated dramatic conflict and quick plot reversal.However,the“viral”dissemination of micro short drama makes the audience’s aesthetics show the aesthetic deformation characteristics of earthy,ugly and non-reality.The article applies media ecology Neil Postman’s theories of“entertainment to death”and“technological monopoly”to observe the impact of micro short dramas on audience aesthetics in order to optimize the market of micro short dramas and guide the healthy development of audience aesthetics.展开更多
Currently, urban areas are the largest segment of the world’s population, and they can reach up to 80% of it in some countries. Understanding green areas is of paramount importance to also understand the population’...Currently, urban areas are the largest segment of the world’s population, and they can reach up to 80% of it in some countries. Understanding green areas is of paramount importance to also understand the population’s mental health and well-being, as well as to achieve ecological understanding and its impact on urban infrastructure. Thus, the aim of the present study is to carry out a survey on both urban afforestation structure and on its social impact on a Brazilian municipality. It also sought to understand the damages caused by these species to urban infrastructure in comparison to data collected in 2009, to assess forest coverage in this municipality and tree planting underutilized capacity. Accordingly, all the streets in this municipality’s urban area, the botanical data of each tree and its damage to the city’s infrastructure and phytosanitary conditions were surveyed (from 1 to 5). Data were compared to those from the 2009 census, and social issues were analyzed. In total, 5044 individuals belonging to 189 species were recorded. The most often found species were Lagerstroemia indica and Murraya paniculata. Out of the total number of trees, 458 trees scored at least one score “5” in one of the criteria, and this number represents 8.9% of the total of the trees. L. indica was the species accounting for the highest rates of phytosanitary and infrastructure issues. Data comparison evidenced that urban tree canopy lost 25% of its vegetation between the two measurements taken herein, but the number of species has increased. When it comes to damages, many trees started showing phytosanitary issues or damage to urban infrastructure.展开更多
At present,the major problems facing the water resource environment worldwide include water pollution,water resource shortage,and water ecosystem degradation.The discharge of industrial wastewater,agricultural non-poi...At present,the major problems facing the water resource environment worldwide include water pollution,water resource shortage,and water ecosystem degradation.The discharge of industrial wastewater,agricultural non-point source pollution,and the discharge of urban sewage lead to a serious decline in water quality,which directly affects the safety of human drinking water and the living environment of aquatic organisms.Additionally,the unbalanced distribution and excessive exploitation of water resources lead to the problem of water shortage in many areas,which then leads to social and economic contradictions and ecological crises.In terms of ecosystems,the phenomena of water ecological degradation and reduction of biodiversity are increasingly obvious,and the carrying capacity of aquatic ecosystems are gradually declining.This paper aims to analyze the natural,social,and economic factors affecting the water resource environment,and propose effective strategies to protect the water ecology.To provide a theoretical basis and practical guidance for the sustainable utilization of water resources and the long-term development of the water ecosystem.展开更多
What is it?Ecology is the science of how humans,animals and plants live together.For example,in the city you can find birds,rats,insects and plants that all live in the same space.Many of them eat things that people ...What is it?Ecology is the science of how humans,animals and plants live together.For example,in the city you can find birds,rats,insects and plants that all live in the same space.Many of them eat things that people don’t want any more.If you go to a forest,you can see different kinds of plants,insects,small animals like rabbits and birds living there;they all eat different things in the forest,and some eat each other!展开更多
文摘Patna is among the cities high populated at risk of ecological and environmental deterioration due to a variety of human activities,such as poor land cover management.One of the most crucial elements of a successful land resource management plan is the evaluation of Land Use Land Cover(LULC).Over the past 20 years,our planet’s land cover resources have undergone substantial changes due to rapid development.The Land Use Land Cover(LULC)categories of the Patna Urban Agglomeration(PUA),including water bodies,agricultural land,barren land,built-up areas,and vegetation,were identified using Geographic Information System(GIS)techniques.Three multi-temporal images were analyzed and classified through supervised classification using the maximum likelihood method.By comparing three separately created LULC categorized maps from 1990 and 2024,temporal changes were analyzed.In order to update land cover or manage natural resources,it is vital to use change detection as a tool to identify changes in LULC over time in PUA,Patna between 1990,2010 and 2024.According to their respective Kappa coefficients,the accuracy rates for 1990,2010 and 2024 LULC are 91.66 and 94.93,respectively.An accuracy evaluation was conducted to determine the correctness of the classification system and to determine the efficacy of the LULC classification maps.One hundred reference test pixels were identified.There have been found significant changes in the LULC were built up area has increased doubled in last thirty-four years of timeline.
文摘From June 4 to 17,2025,the Harmony Together for a Friendly Future-Exhibition of Intermitioncil Youth Photography,jointly hosted by China Center of International Cultural Exchange and Tourism Promotion(CETP)nnd China Cultural Center in Copenhagen,was successfully held at the China Cultured Center in Copenhagen.
文摘From June 4 to 17,2025.the Harmony Together for Friendly future-Exhibition of International Youth Photography.jointly Hosted by China Center for International Culture and Tourism Exchanges(CCICTE) and China Cultural Center in Copenhagen.
基金supported by the 3-year Public Health Program of the Shanghai Municipal Health Commission[grant number GWVI-11.1-10(GC)]the National Key Research and Development Program of China[grant number 2022YFC2602900(GC)]the Shanghai Municipal Health Commission[grant number 2022JC033(GC)].
文摘Mammals are critical reservoirs of human infectious diseases and the spillover of viruses is related to climate conditions.We conducted meta-transcriptomic sequencing of 226 mammals(bats,rodents,hedgehogs,and shrews)representing 20 species collected across eight cities in south China between 2018 and 2024.Samples included internal organs,oropharyngeal and anal swabs,and feces.We identified 63 vertebrate-associated viruses,including 34 novel viruses.Phylogenetic analysis revealed six viruses with potential infection risks to humans or domestic animals due to their close phylogenetic relationships with known pathogens.Cross-species transmission was observed in 14.3%(9/63)of viruses,shared by at least two host species,with bats,particularly Rhinolophus and Hipposideros,serving as key hubs for viral circulation and zoonotic spillover.Virome composition varied substantially among mammalian species and geographic regions(adonis test,R^(2)=0.50,P=0.001).Generalized linear models quantified the roles of host taxonomy,ecotypes,and meteorological factors in shaping viral diversity,demonstrating host taxonomy(at the order level)as a predominant role(25.70%deviance explained),followed by ecotypes(10.27%deviance explained).Phylogenetic analysis conducted using our betacoronavirus sequences,as well as betacoronavirus sequences derived from 2.0×10^(4) bats sampled in China between July 2013 and March 2024,revealed that no betacoronaviruses exhibited closer phylogenetic relationships to SARS-CoV-2 than the known strains(e.g.,RaTG13).These findings provide critical insights into virus evolution,transmission,and ecological determinants,which are essential for the prevention of emerging infectious diseases.
文摘Walking into the Institute of Plateau Biology(IPB in short)in Lhasa,Xizang,vice director Yang Le exchanged pleasantries with the guard in fluent Tibetan.Originally from Hunan Province,he has worked and lived here in Xizang for over 20 years."Now I see Xizang as my home,"he said with a smile.
文摘This study examines the spatial and temporal patterns of wetland degradation in Delhi from 1991 to 2021 using remote sensing and GIS techniques.The Automated Water Extraction Index(AWEI)was applied to pre-monsoon Landsat imagery to delineate surface water bodies over the past 30 years accurately.Supervised classification was employed to generate land use maps,while census data was utilized to analyze urbanization trends across the region.Classification accuracy was assessed using Google Earth reference data through a confusion matrix,ensuring the reliability of the land cover analysis.Results reveal a significant decline in wetland extent,especially in densely populated and rapidly urbanizing districts such as North West,South,and East Delhi.During this time,the urban population increased from 52.7% to 97.4%,accompanied by a 70.2% expansion of built-up areas,while wetlands contracted from 32.9 km^(2) to 30.2 km^(2).South Delhi experienced the most severe wetland loss,with water body coverage dropping from 0.800% to 0.025%,whereas North East and Central Delhi maintained higher wetland coverage due to the influence of the Yamuna River and targeted conservation efforts.The study highlights the strong linkage between urban growth and wetland decline,which threatens biodiversity,groundwater recharge,and ecological stability.These findings emphasize the urgent need for integrated urban planning and conservation policies to safeguard wetlands,thereby promoting sustainability and water security in the National Capital Region.
基金Supported by Open Experimental Project in 2024 of Chuzhou University"Construction of Land and Space Planning System under the Background of Ecological Civilization"Humanities and Social Sciences Research Project Key Project of Anhui University in 2023"Digital Enabling Anhui Rural Human Settlements Environment Comprehensive Renovation Promotion Mechanism and Policy Optimization Research"(2023AH051571)+1 种基金Scientific Research Project of Chuzhou University"Research on the Mode,Mechanism and Promotion Path of Coordinated Development of Villages and Towns in the Suburbs of Metropolis from the Perspective of Three-dimensional Structure"(2023qd63)Digital Technology and Rural Revitalization Anhui Key Laboratory of Philosophy and Social Sciences 2024 Open Fund"Research on the Development Path and Supporting System of Rural Industry Driven by Digital Technology"(ZSKF202408).
文摘From the concept of the "Production-Living-Ecology" Spaces, this paper sorts out the theoretical basis, division principles, and division methods of the "Production-Living-Ecology" Spaces, and then proposes future prospects for them. The integration of theory and practice of "Production-Living-Ecology" Spaces is currently in a stage of in-depth exploration and practical application. Future research should fully recognize the importance and necessity of theoretical research on "Production-Living-Ecology" Spaces under the new situation, and consolidate the theoretical foundation for research on the development and protection of territorial space in the new era.
基金National Innovation Training Project-Landscape Design of Educational Research Base Based on Mine Ecological Restoration(Project No.:202312608002X)Chongqing Engineering College School-level Project:Research on Urban Waterside Landscape Design Based on the Concept of River Ecological Restoration-Taking the Section of Chongqing Engineering College of Huaxi River as an Example(Project No.:2022xskz02)Chongqing Engineering College Innovation Training Project:Innovative Design Research of“Yitian Xuegu”Fengdu County Longhe Town Rural Education Practice Base(Project No.:CXCY2024011)。
文摘Since the new era in China,the long-term traditional rural development path,characterized by the“pollute first,treat later”model,has proven insufficient to meet the needs of sustainable development.The growing contradiction between rural economic development and ecological environmental degradation urgently needs to be addressed.Under the guidance of the Party and the state,there is a strong emphasis on green rural development,making the transformation of the rural green development path imperative.This paper takes rural ecological development as the research basis and innovatively integrates the“educational research”model,aiming to provide practical strategies for the sustainable development of abandoned mine rural landscapes.Taking Datukuang in Xinhe Village,Dadukou District,Chongqing as an example,this project breaks through the technical path dependence of traditional engineering restoration,creatively implants research function modules such as natural education,geological science popularization,and ecological experience,transforming the abandoned mine pit into a composite ecological education demonstration base integrating environmental restoration,science popularization education,and cultural tourism experience.It has opened up a new paradigm for rural revitalization with“mine restoration+research economy”,providing an innovative practice sample for solving the transformation dilemma of resource-based villages.
基金supported by the Geological Research Project of Bureau of Geology and Mineral Exploration and Development Guizhou Province(Qian Di Kuang Ke He(2020)No.27)the Guizhou Provincial Science and Technology Project(no.Qian Ke He Zhi Cheng(2022)General 199)the Guizhou Provincial Science and Technology Project(no.Qian Ke He Zhi Cheng(2023)General 169)。
文摘Vegetation ecological quality(VEQ)is not only influenced by meteorological drought(MD)but also exerts a certain degree of regulatory effect on it.Clarifying the relationship between the two is crucial for ecological conservation efforts.However,the interactions between VEQ and MD and its driving mechanisms in karst mountain regions with high surface heterogeneity remain unclear,and the lack of exploration of this interaction under different subregions hinders further progress in ecological conservation.This study took Guizhou Province,characterized by significant surface heterogeneity and extensive karst formations,as a research case.By dividing the region into different landform regions,we quantified the coupling coordination degree(CCD)between VEQ and MD using the coupling coordination degree model to elucidate their interaction and analyzed its driving forces using the Geodetector model.Results indicated that:(1)From 2001 to 2020,the CCD between VEQ and MD in Guizhou remained at a moderate coordination level,with increasing benign interactions,though significant variations in CCD trends were observed across landform regions.MD is the pivotal subsystem that determines CCD changes.(2)The dominant driving factors of CCD vary by landform,with soil moisture,precipitation,or population density as primary influences.Soil moisture has a stronger effect in karst regions,and its interaction with other factors surpasses the effects of individual factors.(3)To achieve benign development between VEQ and MD.In karst regions,attention should be focused on the impact of soil moisture and human activities on CCD.While non-karst regions have favorable vegetation and hydrothermal conditions,improper development can lead to vegetation degradation,and abnormal hydrothermal conditions,which could trigger a decline in CCD.Therefore,regulating human activities in non-karst regions is also crucial.This work serves as a scientific foundation for formulating ecological preservation strategies in Guizhou and other karst mountain regions.
基金supported by the National Social Science Foundation of China(Grant No.20CMZ033)Fundamental Research Funds for the Central Universities(CCNU24ZZ125).
文摘Mountainous minority regions in China,characterized by abundant natural and cultural resources,ecologically fragile environments,and often geographically remote locations,pose distinct developmental challenges and opportunities.Despite the complexity and typicality of Chinese mountainous ethnic minority regions in terms of eco-cultural tourism and land use dynamics,the interplay among tourism development,land use changes,and landscape ecological risk in these specific contexts has received insufficient attention.To explore how eco-cultural tourism development in ethnic minority mountainous regions affects land use and landscape ecology,this study investigates the evolution of land use in Southeast Guizhou Province from 1980-2020,integrating GIS spatial analysis,the landscape pattern index and landscape ecological risk index analysis.Over the past four decades(1980-2020),eco-cultural tourism has driven significant land use transformations characterized by substantial expansion of building land,growth of ecological land(notably forest land and water areas),and reduction of cultivated land.Concurrently,landscape ecological risk evolved through distinct phases-showing an overall increase during 1980-2000 with expanding medium-risk zones,followed by stabilization from 2000-2020.Tourism development accelerated these land transitions while fostering multifunctional compound land uses,enhancing both land value and utilization efficiency.Crucially,eco-cultural tourism in ethnic regions demonstrates capacity to reconcile ecological conservation with economic development,providing transferable models for similar regions globally.
基金partially supported by the Namibia Students Financial Assistance Fund(NSFAF)Kreditanstalt für Wiederaufbau(KfW)-University of Namibia(UNAM,BMZ Ref.2015.67.015)+2 种基金funded by the project TROPIBIO NORTE-01-0145-FEDER-000046supported by Norte Portugal Regional Operational Programme(NORTE2020)developed in the framework of the“Twin Lab CIBIO/UNAM”(UNESCO Chair Life on Land)。
文摘As the sole obligate symbiotic birds in Africa,oxpeckers offer a unique model for studying symbiotic relationships.Due to the multitrophic level they occupy and the context dependent foraging behavior they exhibit,the type of symbiotic relationship can be variable.In addition to providing a cleaning service to the host by removing ticks,oxpeckers frequently feed on blood,mucus,and saliva,inflicting potential damage on the host.Here,we used DNA metabarcoding on faecal samples to analyze the taxonomic composition of the trophic interactions of the Yellow-billed Oxpecker(Buphagus africanus)and Red-billed Oxpecker(B.erythrorhynchus)in northeastern Namibia.In contrast to conventional methods,DNA metabarcoding allows for a detailed identification of dietary resources encompassing both mammal hosts and consumed arthropods within the same samples.With this information,we examined differences in the diet composition between oxpecker species and localities,as well as the co-occurrence between host and arthropod species.Our findings revealed that oxpeckers predominantly source their diet from mammals,ticks,and flies;however,ticks and flies rarely co-occur in the diet of an individual.We observed variability among individuals in their feeding ecology,which is strongly correlated with locality and,to a lesser extent,with the mammal host.We noted a high degree of mobility between hosts within relatively short periods,with 32%of the samples showing traces of at least two mammal hosts.This study illustrates the dynamic foraging behavior of these specialized symbiotic birds,shedding light on their potential role in pest control services and disease transmission.
基金financially supported by the National Natural Science Foundation of China(31971541).
文摘Forest habitats are critical for biodiversity,ecosystem services,human livelihoods,and well-being.Capacity to conduct theoretical and applied forest ecology research addressing direct(e.g.,deforestation)and indirect(e.g.,climate change)anthropogenic pressures has benefited considerably from new field-and statistical-techniques.We used machine learning and bibliometric structural topic modelling to identify 20 latent topics comprising four principal fields from a corpus of 16,952 forest ecology/forestry articles published in eight ecology and five forestry journals between 2010 and 2022.Articles published per year increased from 820 in 2010 to 2,354 in 2021,shifting toward more applied topics.Publications from China and some countries in North America and Europe dominated,with relatively fewer articles from some countries in West and Central Africa and West Asia,despite globally important forest resources.Most study sites were in some countries in North America,Central Asia,and South America,and Australia.Articles utilizing R statistical software predominated,increasing from 29.5%in 2010 to 71.4%in 2022.The most frequently used packages included lme4,vegan,nlme,MuMIn,ggplot2,car,MASS,mgcv,multcomp and raster.R was more often used in forest ecology than applied forestry articles.R software offers advantages in script and workflow-sharing compared to other statistical packages.Our findings demonstrate that the disciplines of forest ecology/forestry are expanding both in number and scope,aided by more sophisticated statistical tools,to tackle the challenges of redressing forest habitat loss and the socio-economic impacts of deforestation.
文摘The present review provides a compilation of the published data on the ecology and social behavior of tamarisk gerbils. Both field studies anddirect observations under semi-natural conditions provide evidence that the tamarisk gerbil is a nocturnal herbivorous rodent that lives in highlyseasonal habitats and displays seasonal fluctuations in reproduction and spatial organization. A typical feature of the tamarisk gerbils’ spatialorganization is higher mobility of males during the breeding season (as compared with the nonbreeding period) and formation of temporaryaggregations of males competing for access to receptive females;the composition of these aggregations was variable and depended on thereproductive condition of the females. Females tend to occupy exclusive home ranges irrespective of their reproductive condition. The matingsystem of the species can be defined as scramble competition polygyny with some features of polygynandry and promiscuity. The tamariskgerbil has distinct features of a solitary species and its social structure is primarily based on aggressive interactions or mutual avoidance ofconspecifics resulting in a dominance hierarchy among males and site-dependent dominance among females during the breeding season. Bythe end of the breeding season, males become less mobile and occupy nearly exclusive home ranges, consistent with solitary living. The mainfeatures of the spatial and social organization of this species, which distinguish it from other solitary rodents, are the higher mobility of malesand the formation of temporary multimale–multifemale aggregations during the breeding season. Overall, the data presented expand our understanding of socioecology of gerbils.
基金supported by the National Natural Science Foundation of China(Nos.52000043,and 51838005)the intro-duced innovative R&D team project under the“The Pearl River Talent Recruitment Program”of Guangdong Province(No.2019ZT08L387)+2 种基金the Guangdong Natural Science Foundation(No.2023A1515011509)the Science and Technology Research Project of Guangzhou(Nos.202201020177,202102020986 and 202102021044)the special fund from Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences(No.20K01KLDWST).
文摘The effects of cast iron pipe corrosion onwater quality risk and microbial ecology in drinking water distribution systems(DWDSs)were investigated.It was found that trihalomethane(THMs)concentration and antibiotic resistance genes(ARGs)increased sharply in the old DWDSs.Under the same residual chlorine concentration conditions,the adenosine triphos-phate concentration in the effluent of old DWDSs(Eff-old)was significantly higher than that in the effluent of newDWDSs.Moreover,stronger bioflocculation ability andweaker hy-drophobicity coexisted in the extracellular polymeric substances of Eff-old,meanwhile,iron particles could be well inserted into the structure of the biofilms to enhance the mechanical strength and stability of the biofilms,hence enhancing the formation of THMs.Old DWDSs significantly influenced the microbial community of bulk water and triggered stronger mi-crobial antioxidant systems response,resulting in higher ARGs abundance.Corroded cast iron pipes induced a unique interaction system of biofilms,chlorine,and corrosion prod-ucts.Therefore,as the age of cast iron pipes increases,the fluctuation of water quality and microbial ecology should be paid more attention to maintain the safety of tap water.
文摘With the rapid development of urbanization,landscape architecture has become an indispensable component of daily life.In order to achieve better landscape effects and protect the ecological environment,landscape ecology theory can be integrated into landscape planning to carry out disciplinary crossing and integration research between landscape ecology and landscape architecture.In this study,based on the basic theories of landscape ecology,the waterfront landscape of Dapo Town was designed,with the aim to achieve ecological balance in planning,showcase biodiversity,and create a harmonious landscape ecological environment which can benefit both nature and people.This design combined artificial and natural elements while improving the natural environment,which promoted a harmonious relationship between humans and nature,thus enriching the spatial organization of the city,and playing a role in regulating the urban environment and climate.
文摘Micro short drama is a new form of fictional narrative in the environment of digital intelligent media,which attracts the attention of the audience in the era of fragmentation and forms an explosive growth of the industrial market with the characteristics of short content,concentrated dramatic conflict and quick plot reversal.However,the“viral”dissemination of micro short drama makes the audience’s aesthetics show the aesthetic deformation characteristics of earthy,ugly and non-reality.The article applies media ecology Neil Postman’s theories of“entertainment to death”and“technological monopoly”to observe the impact of micro short dramas on audience aesthetics in order to optimize the market of micro short dramas and guide the healthy development of audience aesthetics.
文摘Currently, urban areas are the largest segment of the world’s population, and they can reach up to 80% of it in some countries. Understanding green areas is of paramount importance to also understand the population’s mental health and well-being, as well as to achieve ecological understanding and its impact on urban infrastructure. Thus, the aim of the present study is to carry out a survey on both urban afforestation structure and on its social impact on a Brazilian municipality. It also sought to understand the damages caused by these species to urban infrastructure in comparison to data collected in 2009, to assess forest coverage in this municipality and tree planting underutilized capacity. Accordingly, all the streets in this municipality’s urban area, the botanical data of each tree and its damage to the city’s infrastructure and phytosanitary conditions were surveyed (from 1 to 5). Data were compared to those from the 2009 census, and social issues were analyzed. In total, 5044 individuals belonging to 189 species were recorded. The most often found species were Lagerstroemia indica and Murraya paniculata. Out of the total number of trees, 458 trees scored at least one score “5” in one of the criteria, and this number represents 8.9% of the total of the trees. L. indica was the species accounting for the highest rates of phytosanitary and infrastructure issues. Data comparison evidenced that urban tree canopy lost 25% of its vegetation between the two measurements taken herein, but the number of species has increased. When it comes to damages, many trees started showing phytosanitary issues or damage to urban infrastructure.
基金The Knowledge Innovation Program of Wuhan-Shuguang Project(Project No.2023020201020361).
文摘At present,the major problems facing the water resource environment worldwide include water pollution,water resource shortage,and water ecosystem degradation.The discharge of industrial wastewater,agricultural non-point source pollution,and the discharge of urban sewage lead to a serious decline in water quality,which directly affects the safety of human drinking water and the living environment of aquatic organisms.Additionally,the unbalanced distribution and excessive exploitation of water resources lead to the problem of water shortage in many areas,which then leads to social and economic contradictions and ecological crises.In terms of ecosystems,the phenomena of water ecological degradation and reduction of biodiversity are increasingly obvious,and the carrying capacity of aquatic ecosystems are gradually declining.This paper aims to analyze the natural,social,and economic factors affecting the water resource environment,and propose effective strategies to protect the water ecology.To provide a theoretical basis and practical guidance for the sustainable utilization of water resources and the long-term development of the water ecosystem.
文摘What is it?Ecology is the science of how humans,animals and plants live together.For example,in the city you can find birds,rats,insects and plants that all live in the same space.Many of them eat things that people don’t want any more.If you go to a forest,you can see different kinds of plants,insects,small animals like rabbits and birds living there;they all eat different things in the forest,and some eat each other!
