摘要
基于各省2003-2012年单位耕地农业产值面板数据,采用Theil指数及其分解和基于回归的shapley值分解方法,对我国耕地综合产出不均衡进行研究。结果表明,我国耕地综合产出不均衡度存在"减增交替"的波动特征,东中西地带内部省际耕地综合产出差异在考察年度内均存在拐点,八地区的分解显示黄河中游地区内部和东北地区内部在考察年度内耕地综合产出最为不均衡;农均耕地、地均机械投入、农村教育和复种指数等是影响我国耕地综合产出空间均衡度的因素,其中地均机械投入和农村教育对省际耕地综合产出差距的相对贡献率逐渐弱化,复种指数的作用呈强化趋势,农均耕地因素近年来成为弥补省际耕地综合产出差距的力量。
Based on the agricultural output value per unit cultivated land and data of 2003-2012,this paper studies the comprehensive output of spatial difference of China＇s cultivated land by using Theil index and Shapley value decomposition.The result shows that the comprehensive output of spatial difference of China＇s cultivated land has the tendency of＂reduce-increase＂alternation.The internal difference of interprovincial cultivated land comprehensive output in the eastern,middle and western regions of China all have inflection point,and decomposition in eight areas shows that comprehensive output of cultivated land in middle reaches of the Yellow River and northeastern China is the most unbalanced.Cultivated land,agricultural machinery,rural education and multiple crop index are all factors influencing the spatial difference of cultivated land comprehensive output,among which the investment of agricultural machinery and rural education are weakening the interprovincial comprehensive output differences of cultivated land,while the role of multiple crop index is strengthening,and cultivated land in recent years has become the making-up factors for the difference of cultivated land comprehensive output.
出处
《华中农业大学学报（社会科学版）》
CSSCI
2015年第3期34-39,共6页
Journal of Huazhong Agricultural University(Social Sciences Edition)
基金
教育部人文社会科学项目"我国城市化质量空间差异的成因和优化策略"(14YJCZH191)
国家社会科学规划项目"关系和信任导向下的农产品供应链研究"(13BGL060)
关键词
耕地
综合产出
空间不均衡
分解
ultivated land
comprehensive output
spatial inequality
decomposition
