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
徐保坤 1杨晓霞 2袁念念 3李亚龙3
作者信息
- 1. 长江科学院农业水利研究所,湖北武汉 430010;重庆市灌溉试验中心站,重庆 402373
- 2. 重庆交通大学 河海学院,重庆 400074
- 3. 长江科学院农业水利研究所,湖北武汉 430010
- 折叠
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.
Abstract
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 ap-plied 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 agri-cultural 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 wa-ter 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Key words
agricultural water consumption/agricultural economic development/Tapio decoupling model/Yangtze River Eco-nomic Belt引用本文复制引用
基金项目
国家自然科学基金(U2040213)
中央级公益性科研院所基本科研业务费专项(CKSF2023347/NY)
出版年
2024
国家科技期刊平台
NSTL
万方数据