节水灌溉Issue(4)：11-18,8.DOI:10.12396/jsgg.2025457
黑河调水与节水型社会建设驱动下农业-生态系统协同机制
Agriculture-Ecosystem Synergy Mechanism Driven by Water Diversion and Water-saving Society Construction in Heihe River
摘要
Abstract
To reveal the synergistic response mechanisms among agricultural development,water regulation,and ecological response in the Heihe River Basin,this study integrates multisource data from 2000-2021 to analyze the correlation between the evolution of irrigation patterns in the midstream Zhangye City and the water area of the downstream Juyan Lake.The results indicate that the expansion of water-saving irrigation area in the midstream was significant,reaching 210 600 hectares in 2020,boosting grain yield by 204.7%compared to 2000(r=0.782).However,the inefficient expansion of cultivated land after 2013 may increase the risk of land desertification.Hydrologically,the runoff variations at Yingluoxia and Zhengyixia showed significant synchrony(r=0.948),and the water discharge from Zhengyixia was highly correlated with the area of Juyan Lake(r=0.800).Under the combined effects of water transfer policies and midstream water-saving construction,the area of Juyan Lake reached a historical peak in 2017.Difference analysis revealed potential hydrological contradictions:while EVI and NDBI confirmed synchronized vegetation recovery and cultivated land expansion,NDWI revealed a general decline in surface humidity in midstream farmlands,confirming that water-saving measures have hindered the water cycle.The study concludes that synergistic management involving engineering regulation,technology promotion,and policy guidance achieves an economic-ecological win-win,laying a solid foundation for national security.关键词
黑河调水/节水型社会建设/内陆河流域/农业-生态协同机制/遥感反演/融合模型Key words
water diversion in Heihe River/water-saving society construction/inland river basin/agricultural-ecological coordination mechanism/remote sensing/hybrid model分类
农业科技引用本文复制引用
张宸,杨国崇,盖迎春,车涛..黑河调水与节水型社会建设驱动下农业-生态系统协同机制[J].节水灌溉,2026,(4):11-18,8.基金项目
甘肃省科技重大专项计划项目(23ZDKA0004). （23ZDKA0004）
