中国农田水利投资全要素生产率增长的分布动态演进  

Regional Differences and Distribution Patterns of Total Factor Productivity of Farmland Water Conservancy Investment in China

作　　者：吴学兵[1,2] 丁文杰 叶云 WU Xue-bing;DING Wen-jie;YE Yun(Hubei Rural Development Research Center,Yangtze University,Jingzhou 434023,Hubei Province,China;School of Economics and Management,Yangtze University,Jingzhou 434023,Hubei Province,China)

机构地区：[1]长江大学湖北农村发展研究中心,湖北荆州434023 [2]长江大学经济与管理学院,湖北荆州434023

出　　处：《节水灌溉》2023年第6期60-65,共6页Water Saving Irrigation

基　　金：国家社会科学基金项目(21CJY047);教育部人文社科基金青年项目(19YJCZH190)。

摘　　要：中国农田水利投资力度不断加大,其投资效率问题不容忽视。采用EBM与GML相结合的方法,对基于非期望产出的中国农田水利投资全要素生产率(TFP)进行测度,运用Dagum基尼系数法探究地区差异的来源,应用核密度方法分析中国农田水利投资TFP的分布动态,最后通过Markov链方法描述中国农田水利投资TFP的分布格局。研究表明:中国农田水利投资TFP年均增长3.60%,呈现“双轮驱动”的特征;东北和东部地区增长速度相对较快,而中西部地区增长速度相对缓慢;区域差异呈波动状态,主要由超变密度贡献;时空转移受空间因素影响较大,难以形成“等级锁定”。研究成果有助于为政府优化水利投资结构提供正确方向。据此建议:注重中西部地区水利投资和水资源效率的提升,加强邻近省份农田水利投资的协同合作,推进农田水利投资市场化运行进程,激励各地因地制宜利用好自身水资源优势。The investment efficiency issue of China′s increasing investment in farmland water conservancy cannot be ignored.A combination of EBM and GML was used to measure the total factor productivity(TFP)of China′s farmland water conservancy investment based on nonexpected output,and the Dagum Gini coefficient method was used to investigate the source of regional differences.The results show that:the average annual growth rate of TFP in China′s farmland water conservancy investment is 3.60%,showing a"two-wheel drive"characteristic;the growth rate is relatively fast in the northeast and eastern regions,while the growth rate is relatively slow in the central and western regions;the regional differences are fluctuating,mainly contributed by the hypervariable density;the spatial and temporal shifts are influenced by spatial factors,making it difficult to form a"rank lock".Accordingly,it is recommended that:focusing on water resources investment and water resources efficiency in the central and western regions,strengthening the synergy of investment in farmland water resources in neighboring provinces,promoting the process of market-oriented operation of farmland water resources investment,and stimulating local conditions to make good use of their own water resources advantages.

关 键 词：农田水利投资 全要素生产率TFP EBM-GML 地区差异来源 分布格局 动态演进 

分 类 号：S27[农业科学—农业水土工程] F32[农业科学—农业工程]