水资源保护2024，Vol.40Issue(3)：78-89,12.DOI:10.3880/j.issn.1004-6933.2024.03.010
考虑生态耗水的干旱区绿洲灌溉用水效率评价指标与方法
A new evaluation indicator and method for oasis irrigation water use efficiency in arid regions considering ecological water consumption
摘要
Abstract
In response to the shortcomings of insufficient consideration of ecological service benefits in current evaluation of irrigation water use efficiency at irrigated oasis scale in arid regions,a new indicator and method to evaluate irrigation water use efficiency considering ecological water consumption were proposed and applied in irrigated oasis of the Yellow River in Ningxia Hui Autonomous Region.The results show that the average proportion of irrigation water in farnland evapotranspiration consumption is 74.7％,and that in ecosystem evapotranspiration consumption is 39.8％.Irrigation water plays a significant role in supporting the ecosystem.The difference between irrigation water use efficiency with and without considering ecological water consumption is 0.052～0.074,accounting for 13.9％～16.1％of the irrigation water efficiency without considering the ecological water consumption,and the ecological service benefit of irrigation water is obvious.The proposed indicator and method are reasonable and feasible,and can objectively reflect the comprehensive benefits of irrigation water use.关键词
灌溉用水效率/生态耗水/干旱区/蒸散发/水循环模拟/宁夏引黄灌溉绿洲Key words
irrigation water use efficiency/ecological water consumption/arid regions/evapotranspiration/water cycle simulation/irrigated oasis of the Yellow River in Ningxia Hui Autonomous Region分类
建筑与水利引用本文复制引用
赵勇,董义阳,翟家齐,刘宽,刘志武,梁犁丽..考虑生态耗水的干旱区绿洲灌溉用水效率评价指标与方法[J].水资源保护,2024,40(3):78-89,12.基金项目
国家重点研发计划项目(2021YFC3200205) （2021YFC3200205）
国家自然科学基金项目(51979284) （51979284）
国家杰出青年科学基金项目(52025093) （52025093）
国家科技基础资源调查专项(2021xjkk0405) （2021xjkk0405）
