Rural resilience,a core capability for addressing systemic risks and enabling sustainable development,is increasingly vital to promoting urban-rural integrated development and rural revitalization strategies.However,c...Rural resilience,a core capability for addressing systemic risks and enabling sustainable development,is increasingly vital to promoting urban-rural integrated development and rural revitalization strategies.However,current research lacks exploration of the collaborative mechanisms between rural economic resilience(RER)and rural social resilience(RSR)in ecologically vulnerable areas.Based on the practical context of rural sustainable development in such regions,this study investigates the interaction between RER and RSR from a resilience coordination perspective.In this paper,a rural resilience evaluation framework for collaborative development of economic and social resilience was established.By employing the coupling coordination degree model,obstacle degree model,and equilibrium entropy model,this paper examines the synergies,constraints,and potential of rural resilience subsystems in Jinchang City,Gansu Province,China,in 2020.The results reveal that:1)RER contributes to RSR by stabilizing the economy,enhancing community adaptability,and driving modernization.In turn,RSR strengthens RER by mitigating instability,building social capital,and fostering confidence—together forming a mutually reinforcing coupling mechanism.2)The rural economic and social resilience level in Jinchang City remains generally low with spatially clustered patterns,while the coupling coordination degree is at an intermediate level overall,with 62.59%of villages exhibiting unbalanced development between rural economic and social resilience.3)RER and RSR demonstrate synergistic degradation in ecologically vulnerable areas,where low-level rural economic and social resilience induce integrated systemic deterioration.4)Considering the unbalanced development of rural economic and social resilience in ecologically fragile areas,differentiated coordination pathways are proposed for three village typologies:RER-lagging villages,RSR-lagging villages,and villages where RER and RSR develop synchronously but lack effective coordination.These findings offer spatial governance strategies and practical guidance for enhancing rural resilience and advancing sustainable development in ecologically vulnerable regions.展开更多
Nowadays, China's social economy and the level of science and technology is improving day by day, the coordinated development of agricultural economy and ecological environment is an important content of China'...Nowadays, China's social economy and the level of science and technology is improving day by day, the coordinated development of agricultural economy and ecological environment is an important content of China's new rural construction. At present, the protection and development of agricultural ecological environment is the key to promote agricultural development. This paper also analyzes the current development situation of agricultural economy in China, and makes corresponding research on how to promote the coordinated development of agricultural ecological environment and agricultural economy.展开更多
The clustered regularly interspaced short palindromic repeats(CRISPR)–CRISPR-associated protein(Cas) system has been widely used for genome editing. In this system, the cytosine base editor(CBE) and adenine base edit...The clustered regularly interspaced short palindromic repeats(CRISPR)–CRISPR-associated protein(Cas) system has been widely used for genome editing. In this system, the cytosine base editor(CBE) and adenine base editor(ABE) allow generating precise and irreversible base mutations in a programmable manner and have been used in many different types of cells and organisms. However, their applications are limited by low editing efficiency at certain genomic target sites or at specific target cytosine(C) or adenine(A) residues. Using a strategy of combining optimized synergistic core components, we developed a new multiplex super-assembled ABE(sABE) in rice that showed higher base-editing efficiency than previously developed ABEs. We also designed a new type of nuclear localization signal(NLS) comprising a FLAG epitope tag with four copies of a codon-optimized NLS(F4NLS^(r2)) to generate another ABE named F4NLS-sABE. This new NLS increased editing efficiency or edited additional A at several target sites. A new multiplex super-assembled CBE(sCBE) and F4NLS^(r2) involved F4NLS-sCBE were also created using the same strategy. F4NLS-sCBE was proven to be much more efficient than sCBE in rice. These optimized base editors will serve as powerful genome-editing tools for basic research or molecular breeding in rice and will provide a reference for the development of superior editing tools for other plants or animals.展开更多
Climate change and rapid urbanization pose significant challenges to the conservation and management of agricultural heritage systems,including decline in agricultural land,loss of labor,and ecosystem degradation.Alth...Climate change and rapid urbanization pose significant challenges to the conservation and management of agricultural heritage systems,including decline in agricultural land,loss of labor,and ecosystem degradation.Although existing studies have proposed general strategies with theoretical guidance and specific strategies for particular systems to promote the conservation of agricultural heritage systems,there remains a large knowledge gap in effective and differentiated management strategies at the regional level.This is especially so in China because of the clear regional differences in the natural and socioeconomic conditions of the widely distributed China Nationally Important Agricultural Heritage Systems(China-NIAHS).In this study,we integrated multi-source data and spatial analysis to reveal the distribution characteristics of existing China-NIAHS and proposed differentiated management strategies.Results show that there are four clustering distribution zones of China-NIAHS,i.e.,the northwest clustering zone west of the Heihe-Tengchong Line(ZoneⅠ),the clustering belt with‘Northeast-Hebei-Shandong'as core(ZoneⅡ),the Yangtze River Delta clustering zone(ZoneⅢ),and the Hunan-Chongqing-Yunnan-Guizhou clustering zone(ZoneⅣ).Different management strategies are proposed for the China-NIAHS in each clustering zone.Specifically,ZoneⅠshould focus on maintaining their ecological functions and services,while ZoneⅡshould aim for livelihood supply,sustainable resource use,and ecological protection.For ZoneⅢ,rapid urbanization could become a positive driving force for China-NIAHS conservation through sustainable tourism and reasonable urban zoning.ZoneⅣshould emphasize the mutual support between characteristic product development and the brand effect of the China-NIAHS.These findings will help establish regional and targeted management strategies for China-NIAHS and provide a reference for the conservation of agricultural heritage systems in other countries.展开更多
There are various differences and contraries, sometimes, even a vehement collision between religion and science. However, to the understanding of objective things, the cognition principles which the two follow are alm...There are various differences and contraries, sometimes, even a vehement collision between religion and science. However, to the understanding of objective things, the cognition principles which the two follow are almost unanimous. Basically, mature religions have established complete theology systems, which are one of the means of human cognition, considering objective reality as cognitive basis, following cognitive universal rules and full of rationality and Irrationality through the cognitive process as well as science.展开更多
In the context of China’s resolute advancement of dual carbon goals(carbon peaking and carbon neutrality),urban agglomerations emerge as pivotal areas for carbon emission mitigation due to their dense economic activi...In the context of China’s resolute advancement of dual carbon goals(carbon peaking and carbon neutrality),urban agglomerations emerge as pivotal areas for carbon emission mitigation due to their dense economic activities and rapid urbanization.Previous studies overlook regional disparities in carbon emission prediction,disregarding the variations and policy directives across different provinces or cities.Therefore,this study addresses the research gap by investigating synergistic strategies to foster regional carbon peaking within the Beijing-Tianjin-Hebei region.Employing a novel approach tailored to regional segmentation policies,we provide more accurate predictions reflect-ing real-world conditions and distinct policy landscapes.Meanwhile,we integrate carbon emission efficiency into our analysis,emphasizing the dual goals of emission reduction and quality economic growth.Our empirical investigation in the Beijing-Tianjin-Hebei region,utilizing the Super-SBM and extended STIRPAT models,reveals upward trends in carbon emission efficiency,with varying trajectories across cities.Scenario simulations informed by the"14th Five-Year Plan"demonstrate that under the green development scenario,carbon peaking accelerates,alongside enhanced efficiency,supporting long-term emission reduction.Moreover,we design seven regional synergy carbon peak strate-gies for scenario simulations to facilitate the rational layout of dual carbon policies for collaborative development.We find that synergistic strategies have proven more effective in reducing regional carbon emission and increasing efficiency than strategies focusing solely on economic development or energy conservation.This innovative finding emphasizes the necessity of comprehensive green development in the Beijing-Tianjin-Hebei region and provides strong evidence for policymakers.Our research contributes to targeted strategies for improving carbon emission effi-ciency and reducing emissions,emphasizing the importance of synergistic approaches for regional carbon reduction.展开更多
基金Under the auspices of National Natural Science Foundation of China(No.42271222)Natural Science Foundation of Gansu Province(No.22JR5RA130)。
文摘Rural resilience,a core capability for addressing systemic risks and enabling sustainable development,is increasingly vital to promoting urban-rural integrated development and rural revitalization strategies.However,current research lacks exploration of the collaborative mechanisms between rural economic resilience(RER)and rural social resilience(RSR)in ecologically vulnerable areas.Based on the practical context of rural sustainable development in such regions,this study investigates the interaction between RER and RSR from a resilience coordination perspective.In this paper,a rural resilience evaluation framework for collaborative development of economic and social resilience was established.By employing the coupling coordination degree model,obstacle degree model,and equilibrium entropy model,this paper examines the synergies,constraints,and potential of rural resilience subsystems in Jinchang City,Gansu Province,China,in 2020.The results reveal that:1)RER contributes to RSR by stabilizing the economy,enhancing community adaptability,and driving modernization.In turn,RSR strengthens RER by mitigating instability,building social capital,and fostering confidence—together forming a mutually reinforcing coupling mechanism.2)The rural economic and social resilience level in Jinchang City remains generally low with spatially clustered patterns,while the coupling coordination degree is at an intermediate level overall,with 62.59%of villages exhibiting unbalanced development between rural economic and social resilience.3)RER and RSR demonstrate synergistic degradation in ecologically vulnerable areas,where low-level rural economic and social resilience induce integrated systemic deterioration.4)Considering the unbalanced development of rural economic and social resilience in ecologically fragile areas,differentiated coordination pathways are proposed for three village typologies:RER-lagging villages,RSR-lagging villages,and villages where RER and RSR develop synchronously but lack effective coordination.These findings offer spatial governance strategies and practical guidance for enhancing rural resilience and advancing sustainable development in ecologically vulnerable regions.
文摘Nowadays, China's social economy and the level of science and technology is improving day by day, the coordinated development of agricultural economy and ecological environment is an important content of China's new rural construction. At present, the protection and development of agricultural ecological environment is the key to promote agricultural development. This paper also analyzes the current development situation of agricultural economy in China, and makes corresponding research on how to promote the coordinated development of agricultural ecological environment and agricultural economy.
基金supported by the Beijing Scholars Program[BSP041]。
文摘The clustered regularly interspaced short palindromic repeats(CRISPR)–CRISPR-associated protein(Cas) system has been widely used for genome editing. In this system, the cytosine base editor(CBE) and adenine base editor(ABE) allow generating precise and irreversible base mutations in a programmable manner and have been used in many different types of cells and organisms. However, their applications are limited by low editing efficiency at certain genomic target sites or at specific target cytosine(C) or adenine(A) residues. Using a strategy of combining optimized synergistic core components, we developed a new multiplex super-assembled ABE(sABE) in rice that showed higher base-editing efficiency than previously developed ABEs. We also designed a new type of nuclear localization signal(NLS) comprising a FLAG epitope tag with four copies of a codon-optimized NLS(F4NLS^(r2)) to generate another ABE named F4NLS-sABE. This new NLS increased editing efficiency or edited additional A at several target sites. A new multiplex super-assembled CBE(sCBE) and F4NLS^(r2) involved F4NLS-sCBE were also created using the same strategy. F4NLS-sCBE was proven to be much more efficient than sCBE in rice. These optimized base editors will serve as powerful genome-editing tools for basic research or molecular breeding in rice and will provide a reference for the development of superior editing tools for other plants or animals.
基金Strategic Priority Research Program of the Chinese Academy of Sciences,No.XDA23100203。
文摘Climate change and rapid urbanization pose significant challenges to the conservation and management of agricultural heritage systems,including decline in agricultural land,loss of labor,and ecosystem degradation.Although existing studies have proposed general strategies with theoretical guidance and specific strategies for particular systems to promote the conservation of agricultural heritage systems,there remains a large knowledge gap in effective and differentiated management strategies at the regional level.This is especially so in China because of the clear regional differences in the natural and socioeconomic conditions of the widely distributed China Nationally Important Agricultural Heritage Systems(China-NIAHS).In this study,we integrated multi-source data and spatial analysis to reveal the distribution characteristics of existing China-NIAHS and proposed differentiated management strategies.Results show that there are four clustering distribution zones of China-NIAHS,i.e.,the northwest clustering zone west of the Heihe-Tengchong Line(ZoneⅠ),the clustering belt with‘Northeast-Hebei-Shandong'as core(ZoneⅡ),the Yangtze River Delta clustering zone(ZoneⅢ),and the Hunan-Chongqing-Yunnan-Guizhou clustering zone(ZoneⅣ).Different management strategies are proposed for the China-NIAHS in each clustering zone.Specifically,ZoneⅠshould focus on maintaining their ecological functions and services,while ZoneⅡshould aim for livelihood supply,sustainable resource use,and ecological protection.For ZoneⅢ,rapid urbanization could become a positive driving force for China-NIAHS conservation through sustainable tourism and reasonable urban zoning.ZoneⅣshould emphasize the mutual support between characteristic product development and the brand effect of the China-NIAHS.These findings will help establish regional and targeted management strategies for China-NIAHS and provide a reference for the conservation of agricultural heritage systems in other countries.
文摘There are various differences and contraries, sometimes, even a vehement collision between religion and science. However, to the understanding of objective things, the cognition principles which the two follow are almost unanimous. Basically, mature religions have established complete theology systems, which are one of the means of human cognition, considering objective reality as cognitive basis, following cognitive universal rules and full of rationality and Irrationality through the cognitive process as well as science.
基金supported by the grant from the National Natural Science Foundation of China(52270174).
文摘In the context of China’s resolute advancement of dual carbon goals(carbon peaking and carbon neutrality),urban agglomerations emerge as pivotal areas for carbon emission mitigation due to their dense economic activities and rapid urbanization.Previous studies overlook regional disparities in carbon emission prediction,disregarding the variations and policy directives across different provinces or cities.Therefore,this study addresses the research gap by investigating synergistic strategies to foster regional carbon peaking within the Beijing-Tianjin-Hebei region.Employing a novel approach tailored to regional segmentation policies,we provide more accurate predictions reflect-ing real-world conditions and distinct policy landscapes.Meanwhile,we integrate carbon emission efficiency into our analysis,emphasizing the dual goals of emission reduction and quality economic growth.Our empirical investigation in the Beijing-Tianjin-Hebei region,utilizing the Super-SBM and extended STIRPAT models,reveals upward trends in carbon emission efficiency,with varying trajectories across cities.Scenario simulations informed by the"14th Five-Year Plan"demonstrate that under the green development scenario,carbon peaking accelerates,alongside enhanced efficiency,supporting long-term emission reduction.Moreover,we design seven regional synergy carbon peak strate-gies for scenario simulations to facilitate the rational layout of dual carbon policies for collaborative development.We find that synergistic strategies have proven more effective in reducing regional carbon emission and increasing efficiency than strategies focusing solely on economic development or energy conservation.This innovative finding emphasizes the necessity of comprehensive green development in the Beijing-Tianjin-Hebei region and provides strong evidence for policymakers.Our research contributes to targeted strategies for improving carbon emission effi-ciency and reducing emissions,emphasizing the importance of synergistic approaches for regional carbon reduction.
