碳排放和水污染约束条件下云南农业水资源利用效率研究  

Utilization efficiency of agricultural water in Yunnan province under constraint conditions of carbon emission and water pollution

作　　者：杨蕊 王龙 何永美[2] 梁泉[3] YANG Rui;WANG Long;HE Yong-mei;LIANG Quan(College of Water Conservancy,Yunnan Agricultural University,Kunming 650201,China;College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,China;College of Agronomy and Biotechnology,Yunnan Agricultural University,Kunming 650201,China)

机构地区：[1]云南农业大学水利学院,昆明650201 [2]云南农业大学资源与环境学院,昆明650201 [3]云南农业大学农学与生物技术学院,昆明650201

出　　处：《西南农业学报》2023年第8期1748-1757,共10页Southwest China Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(32060287);云南省教育厅科学研究基金项目(2019J0132)。

摘　　要：【目的】以云南16个州(市)2010—2019年碳排放和水污染约束下的农业水资源利用效率为研究对象,探究其时空变化特征,基于此提出提高农业水资源利用效率的建议。【方法】采用Super-SBM模型测度云南农业水资源利用效率,结合核密度法和Malmquist指数分析云南农业水资源利用效率。【结果】云南农业水资源利用效率低,存在巨大的提升潜力;各地区农业水资源利用效率差异显著,呈以“滇中-滇南T字带”为中心向四周辐射降低的空间分布;10年间农业水资源利用效率呈较明显的上升趋势,不同地区上升趋势各异,中高水平区增幅和增速较大,低水平区增幅和增速较小;云南农业水资源利用效率存在两极分化现象,中高效率区范围增大,低效率区范围减小甚至消失,呈“强者更强,弱者增强”的态势;全省呈现滇中-滇南-滇西“三足鼎立”的高农业水资源利用效率空间格局,聚集区的聚集程度和范围持续增强,聚集程度和范围由大到小为滇中-滇西-滇南。【结论】云南农业水资源利用效率总体水平低,在时间变化和空间分布上存在较大差异,技术进步是提高云南农业水资源利用效率的根本之计,应对不同州(市)采取差异化的提升措施。【Objective】The present paper explored the spatial-temporal characteristics of utilization efficiency of agricultural water under constraints of carbon emission and water pollution in 16 prefectures of Yunnan province from 2010 to 2019,and put forward some suggestions on improving utilization efficiency of agricultural water.【Method】The Super-SBM model,the kernel density estimation method and Malmquist index method were used for the analysis of utilization efficiency of agricultural water in Yunnan province.【Result】The utilization efficiency of agricultural water in Yunnan province was low,and there was great potential for improvement.There were significant differences among regions,showing a spatial distribution of reduced radiation around the ‘Central-Southern Yunnan province T-belt'.The utilization efficiency of agricultural water in Yunnan province had shown an obvious upward trend,with different upward trends in different regions in the past 10 years.The medium and high-level areas had a large growth rate and range while the low-level areas had the opposite.There was a polarization phenomenon in utilization efficiency of agricultural water in Yunnan province.The range of medium and high efficiency zones increased,while low efficiency zones decreased or even disappered.Yunnan province presented the spatial pattern of high utilization efficiency of agricultural water of ‘three pillars' in central Yunnan province,southern Yunnan province and western Yunnan province.The degree and scope of the agglomeration in the agglomeration areas continued to increase,ranging from central Yunnan province to western Yunnan province to southern Yunnan province.【Conclusion】The overall level of utilization efficiency of agricultural water in Yunnan province was low.There were large differences in temporal variation and spatial distribution.Technological progress is the fundamental measure to improve utilization efficiency of agricultural water.Differentiated enhancement measures should be adopted for different

关 键 词：农业水资源利用效率 非期望产出 Super-SBM模型 核密度 MALMQUIST指数 云南 

分 类 号：S27[农业科学—农业水土工程]