关键词: 种植业, 生产要素调控, 区域差别化, 三阶段DEA, 湖北省

Abstract:

Using three-stage DEA modeling we estimated the real production efficiency of arable land at the county level in Hubei,China. Research shows：By comparing differences among the four regions of Hubei （western mountain region,southern-eastern hill region,Jianghan plain and northern-eastern region）, some responding region-differential proposals are put forward for regulating the structure of plant industry production factors. Compared with the results of BBC （first stage）,in the third stage the efficiency increases and redundancy declines significantly,verifying that the three-stage DEA model,to a certain extent,can eliminate the influence of external environmental factors and random factors,and can show the real efficiency of one DMU in a degree. There are obvious spatial differences in arable land production efficiency and redundancy of plant production factors. The western mountain region and southern-eastern hill region have high redundancy rates for labor force and it is important to take certain measures to transfer the agricultural labor force to nonagricultural industries. The Jianghan plain and the northern-eastern region have higher redundancy rates for agricultural machines,yet there is a difference between the poor use of agricultural machines and redundant agricultural machine resource inputs and methods to raise the efficiency of agricultural machinery in the Jianghan plain and reduce the amount of agricultural machines in the northern-eastern region are needed. Fertilizer input redundancy has a regularity of spatial distribution. The Jianghan plain and northern-western region should cut down on the amount of chemical fertilizer used. Policy makers should lay down regional-differential policies to improve the structure of planting factors and the efficiency of arable land usage.

Key words: planting industry, regulation of production factors, region-differential, three-stage DEA modeling, Hubei Province