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Detecting farmland green production efficiency considering Sustainable Development Goals(SDGs)in the Yellow River Basin:Dynamics,drivers,and challenges 认领 引用
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作者 Chaoqing Chai Yuanyuan Li +10 位作者 Ronghao Wen Hui Zhang Bangbang Zhang Peixue Xingc Ying Sun Huadong Zhu Guanghui Hou Haoyang Wang Wenhao Niu Weiwei Zheng Xiangbin Kong 《Geography and Sustainability》 CSCD 2026年第2期87-101,共15页
Pursuing sustainable growth of Farmland Green Production Efficiency(FGPE)is crucial for achieving multiple Sustainable Development Goals(SDGs),particularly SDG2(Zero Hunger),SDG 12(Responsible Consumption and Producti... Pursuing sustainable growth of Farmland Green Production Efficiency(FGPE)is crucial for achieving multiple Sustainable Development Goals(SDGs),particularly SDG2(Zero Hunger),SDG 12(Responsible Consumption and Production),SDG13(Climate Action),and SDG 15(Life on Land)in ecologically fragile basins.However,the dynamics,drivers,and challenges of FGPE remain underexplored within the SDGs framework,especially at finer spatial scale and across coupled“society-economy-policy-climate”(SEPC)drivers.This study develops an FGPE assessment framework through SDGs lens,utilizing“elements-processes-functions-drivers”paradigm and data from 447 counties in the Yellow River Basin(YRB)from 2000 to 2022.We apply super-efficiency Slacks-Based Measure and Malmquist-Luenberger(SBM-ML),spatial correlation analysis,and geographically and temporally weighted regression models to assess FGPE growth challenges.Results reveal a“U-shaped”trend in the number of high-FGPE counties,with a rapid increase after 2016.Specifically,FGPE across the YRB increased by 97.6%from 2000 to 2022,though spatial correlation declined by 44.7%,indicating weakening spatial spillover effect.Despite the overall progress,the YRB still faces multiple challenges,including uneven regional development,weakening spatial correlation,climate sensitivity,economic structural shift,and weak policy effect.The findings highlight that FGPE improvement align with key SDGs targets,including enhancing food security(SDG 2),promoting sustainable production(SDG 12),increasing climate resilience(SDG 13),and conserving land ecosystems(SDG 15).Region-specific strategies are recommended:enhancing climate resilience and ecological conservation in the upper reaches,promoting technological diffusion via urban-industrial transformation in the middle reaches,and advancing green agricultural technologies with more local financial support in the lower reaches. 展开更多
关键词 Farmland Green Production Efficiency(FGPE) Sustainable Development Goals(SDGs) Spatial-temporal evolution dynamics Society-economy-policy-climate(SEPC) coupled drivers Key challenges Yellow River Basin(YRB)
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Photochemical microfluidic synthesis of vitamin D_3 by improved light sources with photoluminescent substrates 认领 引用 被引量：2
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作者 Wenhao Niu Yuanzhi Zheng +2 位作者 Ying Li Le Du Wei Liu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2021年第1期204-211,共8页
This study presents a novel technique for the controllable preparation of photoluminescent substrates to enhance the photochemical microfluidic synthesis of vitamin D_3.The dip-coating method to prepare the substrates... This study presents a novel technique for the controllable preparation of photoluminescent substrates to enhance the photochemical microfluidic synthesis of vitamin D_3.The dip-coating method to prepare the substrates was experimentally optimized,and the corresponding emission behaviors were systematically investigated.The substrates were successfully used to enhance the ultraviolet B(UVB) emission of a low-power light source(e.g.,an 8 W lamp),whose UVB emission intensity was increased by approximately 11 times.By virtue of the novel light source,the productivity of a single set of photochemical microreactor with a 12-meter-long channel(0.6 mm i.d.) was increased to 1.83 kg·a-1,which was 42% higher than that of a 100 W lamp,and no cooling devices were used.The method is simple and has great potential to replace traditional medium-pressure mercury lamps for UVB-irradiated photochemical reactions. 展开更多
关键词 Microfluidics Photochemistry Composites UVB emission Vitamin D_3
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