东部沿海经济区耕地利用效率的时空格局分异及影响因素研究  

The spatial and temporal differentiation of the farmland utilization efficiency in the Eastern Coastal Economic Zone

作　　者：姜晗 杨皓然 吴群[1] JIANG Han;YANG Hao-ran;WU Qun(College of Public Administration,Nanjing Agricultural University,Nanjing,Jiangsu 210095,China)

机构地区：[1]南京农业大学公共管理学院,江苏南京210095

出　　处：《农业现代化研究》2020年第2期321-330,共10页Research of Agricultural Modernization

基　　金：国家自然科学基金重点项目(71233004)。

摘　　要：本文运用非期望的超效率SBM模型、全局和局部Moran’s I指数,测度了2002—2016年东部沿海经济区及其25个市级单位的耕地利用效率,并分析其空间格局分异规律;运用Malmquist—Luenberger生产率指数刻画东部沿海经济区及其各省域(直辖市)的耕地利用全要素生产率动态变化特征;运用地理加权回归模型探究东部沿海经济区耕地利用效率时空分异的主要影响因素。研究结果如下:1)2002—2016年,研究区耕地利用效率整体上呈波动上升的趋势,但整体效率值并不高,纯技术效率所占比重较大,是导致综合效率变化的关键;2)研究区耕地利用效率整体呈显著的空间正相关性,以空间集聚为主要分布模式,局部集聚呈高高效率区和低低效率区“两极分化”格局;3)东部沿海经济区及江苏省、浙江省和上海市的耕地利用全要素生产率整体上均呈正向增长的态势,主要得益于技术进步的促进作用;4)耕地资源禀赋、政府重视程度是影响研究区耕地利用效率时空分异的重要因素,经济发展水平的影响作用也较为重要。文章从建立耕地低碳利用保障机制、加大政府对农业的投入力度、实行高效严格的耕地保护补偿机制三方面提供建议。Applying the undesired super-efficiency SBM model with both global and local Moran’s I indices,this paper evaluated the farmland utilization efficiency of the Eastern Coastal Economic Zone and its 25 municipal units from 2002 to 2016,analyzed the changes in the spatial patterns and the laws of spatial differentiation,and examined the dynamic changes in the total factor productivity of farmland utilization in the study area by the Malmquist-Luenberger productivity index.In addition,this paper also explored the main factors influencing the spatial-temporal differentiation of farmland utilization efficiency in the Eastern Coastal Economic Zone by a Geographically Weighted Regression model.Results show that:1)from 2002 to 2016,the farmland utilization efficiency in the studied area showed a rising trend with some fluctuations.The overall efficiency was not high,and the pure technical efficiency proportion was large,which drove the changes in overall efficiency;2)the farmland utilization efficiency in the study area had an overall significant positive spatial correlation with spatial agglomeration as the main distribution mode.But the local agglomeration presented a“polarization”pattern of both high-high and low-low efficiency areas;3)in the Eastern Coastal Economic Zone and Jiangsu Province,Zhejiang Province,and Shanghai,the total factor productivity of farmland utilization was positive,mainly due to the promotion of technological progress;and 4)both the endowment of farmland resources and government attention affected the spatial-temporal differentiation of the farmland utilization efficiency in the study area.These factors also affected the level of economic development.Based on the above results this paper suggests to encourage future low-carbon mechanisms for farmland,including increasing government investment in agriculture and implementing an efficient and strict compensation mechanism to protect farmland.

关 键 词：土地资源 耕地利用效率 时空格局分异 影响因素 东部沿海经济区 

分 类 号：F301.24[经济管理—产业经济]