长江经济带农业用水量与农业经济发展脱钩关系  

Decoupling relationship between agricultural water consumption and agricultural economic development in Yangtze River Economic Belt

作　　者：徐保坤 杨晓霞 袁念念[1] 李亚龙[1] XU Baokun;YANG Xiaoxia;YUAN Niannian;LI Yalong(Agricultural Water Conservancy Department,Changjiang River Scientific Research Institute,Wuhan 430010,China;Chongqing Central Station of Irrigation Experiment,Chongqing 402373,China;School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]长江科学院农业水利研究所,湖北武汉430010 [2]重庆市灌溉试验中心站,重庆402373 [3]重庆交通大学河海学院,重庆400074

出　　处：《人民长江》2024年第5期1-6,共6页Yangtze River

基　　金：国家自然科学基金项目(U2040213);中央级公益性科研院所基本科研业务费专项(CKSF2023347/NY)。

摘　　要：阐明长江经济带农业用水量和农业经济发展之间的脱钩关系,对提高水资源利用效率,落实节水优先具有重要意义。基于2003~2021年长江经济带相关统计数据,运用Tapio脱钩模型,在揭示2003~2021年长江经济带水资源量时空演变特征的基础上,对长江经济带11个省(市)的农业用水量与农业经济发展的脱钩关系进行了实证分析。研究结果表明:总体上来看,长江经济带农业用水量供应充足,但受水资源空间分布不均的影响,农业用水供需存在空间上的不均衡现象;长江经济带11个省(市)农业用水效益存在明显差异,总体农业用水量与农业经济发展之间一直处于脱钩状态,并且长期处于比较理想的弱脱钩状态或强脱钩状态;在大多数时段内,各省份农业用水量与农业经济发展之间也处于比较理想的弱脱钩状态或强脱钩状态。研究成果可为长江经济带农业水资源高效利用及其相关政策制定提供参考。Clarifying the decoupling relationship between agricultural water consumption and agricultural economic development in Yangtze River Economic Belt is of great significance to improving the utilization efficiency of water resources and implementing the"water saving priority"policy.Based on the relevant statistical data of the Yangtze River Economic Belt from 2003 to 2021,the temporal and spatial evolution characteristics of water resources was revealed,and then the Tapio decoupling model was applied to reveal the decoupling relationship for empirical analysis in 11 provinces and municipalities in the Yangtze River Economic Belt.The results showed that agricultural water supply was sufficient on the whole.However,there was a spatial imbalance between agricultural water supply and demand due to the uneven spatial distribution of water resources.There were significant differences in agricultural water efficiency in the 11 provinces and municipalities.On the one hand,the total agricultural water consumption and agricultural economic development in the Yangtze River Economic Belt have always been in decoupling states,and they were in more ideal status of weak decoupling or strong decoupling in most of the time.On the other hand,the relationship between agricultural water consumption and agricultural economic development in each province were also in a relatively ideal status of weak decoupling or strong decoupling in most periods of time.The results can provide a reference for the efficient use of agricultural water resources and the formulation of related policies in the Yangtze River Economic Belt.

关 键 词：农业用水 农业经济发展 Tapio脱钩模型 长江经济带 

分 类 号：TV213[水利工程—水文学及水资源]