摘要
近年来,洞庭湖区农业用水供求矛盾日益凸显,提升农业水资源绿色效率对实现洞庭湖生态经济区高质量发展具有重要意义。基于2011—2019年农业水资源投入与产出数据,运用三阶段超效率SBM-Malmquist指数模型对洞庭湖区农业水资源绿色效率进行测度。结果表明:剔除外部环境和随机误差项影响,2011—2019年洞庭湖区农业水资源绿色效率均值为0.5832,农业水资源绿色效率存在较大的提升空间;人均GDP和政府农林水事务支出增加可以促进农业水资源绿色效率的提升,人均水资源量增加会降低农业水资源绿色效率;洞庭湖区农业水资源全要素生产率指数经历上升—下降—上升三个主要阶段,农业水资源全要素生产率指数与技术进步变化指数基本同步。最后提出了洞庭湖区农业用水绿色效率的相关对策建议。
In recent years,the contradiction between the supply and demand of agricultural water in Dongting Lake area has become increasingly prominent.Improving the green efficiency of agricultural water resources is of great significance for realizing the high-quality development of Dongting Lake ecological economic zone.Based on the input and output data of agricultural water resources from 2011 to 2019,the three-stage super-efficiency SBM-Malmquist index model was used to measure the green efficiency of agricultural water resources in Dongting Lake area.The results show that the average green efficiency of agricultural water resources in Dongting Lake area from 2011 to 2019 is 0.5832,excluding the influence of external environment and random error terms,and there is much room for improvement.The increase of per capita GDP and government expenditure on agriculture,forestry and water affairs can promote the green efficiency of agricultural water use,while the increase of per capita water resources will reduce the green efficiency of agricultural water use.The total factor productivity index of agricultural water resources in Dongting Lake experienced the three main stages:rising-falling-rising,and the total factor productivity index of agricultural water resources was basically synchronized with the technological progress change index.Finally,some suggestions on green efficiency of agricultural water use in Dongting Lake area are put forward.
作者
邓正华
邓丽萍
何姣
高小玲
DENG Zhenghua;DENG Liping;HE Jiao;GAO Xiaoling(School of Economics and Management,Hunan Institute of Science and Technology,Yueyang Hunan 414000,China)
出处
《生态经济》
北大核心
2023年第8期106-111,186,共7页
Ecological Economy
基金
湖南省社会科学基金精品培育项目“湖南‘守护一江碧水’研究”(21ZDAJ008)
湖南省社会科学基金项目“洞庭湖生态环境政策效果评估及优化研究”(20YBQ054)
湖南省社会科学评审委课题“洞庭湖流域水资源承载力评价体系及其协调发展研究”(XSP22YBC467)
湖南省研究生创新项目“环洞庭湖区农业水资源利用效率与影响因素研究”(CX20211207)
