基于2000—2014年省级面板数据,运用生产集中度和区域重心分析法综合考察生猪生产布局变迁轨迹和特征,从空间效应的角度,采用空间计量经济模型实证分析生猪生产布局变迁的经济学成因。研究表明,生猪生产区域呈现出向东向北移动的演变趋势;地区间生猪生产具有空间相关性,生猪产业存在空间集聚现象;资源禀赋、技术水平、交通通达性的直接效应对生猪生产起到促进作用,相邻地区和本地区的劳动力教育水平和价格预期共同影响本地区生猪生产,畜牧业比较优势的挤出效应因非农就业机会的间接效应得到缓解,环境规制对本地区生猪生产有抑制作用。
Based on the panel data of provincial pig production from 2000 to 2014, the production concentration and regional center of gravity analysis are used to investigate the track and characteristics of pig production distribution.From the perspective of spatial effect,the spatial econometric model is used to analyze the economic cause of pig production changes. The results shows that the distribution of pig production shows a trend of moving eastward and northward.The pig production has a spatial correlation,and there is a spatial agglomeration in pig industry.The direct effect of resource endowment,technology level and traffic accessibility plays an important role in pig production,the level of labor education and price expectations in the adjacent areas and the region jointly affect the production of pigs in the region,the crowding out effect of the comparative advantage of animal husbandry is alleviated by the indirect effect of nonagricultural employment opportunities,and environmental regulation has an inhibitory effect on pig production in the region.