干旱区地理2024，Vol.47Issue(12)：2005-2016,12.DOI:10.12118/j.issn.1000-6060.2024.114
宁夏典型粮食作物生产水足迹时空演变及节水潜力评价
Spatio-temporal evolution of water footprint of typical grain crops and evaluation of water-saving potential in Ningxia
摘要
Abstract
In recent years,the grain and vegetable production capacity of Ningxia Hui Autonomous Region(Ningxia)has increased significantly.However,as one of the most water-scarce provinces in China,evaluating the water footprint of agricultural production and its water-saving potential is crucial for promoting the sustain-able use of agricultural water resources.Focusing on the production water footprint of five typical food crops,this study explored the spatiotemporal evolution trends of the production water footprint in the region from 2006 to 2020 using the Mann-Kendall trend test.Additionally,a water-saving potential model was employed to further analyze the water-saving potential of these crops.The results indicated that:(1)The production water footprint of typical grain crops in Ningxia exhibited a decreasing trend over the past 15 years,with the production water foot-print in Guyuan City decreasing by 42.97% .(2)The blue water and gray water footprints of each crop showed a consistent downward trend,while the green water footprint of the same crop varied significantly across cities,with soybean contributing the most to the green water footprint.(3)The water-saving potential of crop engineer-ing,true water-saving potential of blue water and true water-saving potential of green water could reach 44.81%,46.43% and 45.10%,respectively,in typical year crop production projects.These findings provide a theoretical foundation for the sustainable development of water-saving agriculture in Ningxia.关键词
作物生产水足迹/时空演变/节水潜力/宁夏Key words
crop production water footprint/spatiotemporal evolution/water saving potential/Ningxia引用本文复制引用
高亚苗,陈浩楠,王芳,南雄雄,陈红翔,李文慧..宁夏典型粮食作物生产水足迹时空演变及节水潜力评价[J].干旱区地理,2024,47(12):2005-2016,12.基金项目
宁夏留学回国人员创新创业项目(202303) （202303）
国家自然科学基金项目(42067022,41761066) （42067022,41761066）
自治区教育厅高等学校科学研究项目(NYG2022083)资助 （NYG2022083）
