摘要
以耕地保护"新政"时期的1999—2008年为研究时段,在测算各省(市、自治区)耕地利用集约度的基础上,运用GIS、线性回归和泰尔指数系统分析了我国耕地利用集约度的空间差异,并构建了计量经济模型,研究不同区域耕地利用集约度变化的影响因素。结果表明:⑴我国耕地利用集约度由东中部地区向西部和东北递减,但东部耕地利用集约度位次整体下降,中部和西部则上升,东北相对稳定;⑵由泰尔指数可知,我国耕地利用集约度的总体差异较明显,相较于区域内差异,区域间差异对总体差异的影响较大。⑶东部耕地利用集约度受耕地资源状况(如人均经营耕地面积等)的影响较大,其他区域则更易受到社会经济因素和农业政策的影响。因此,我国应采取差别化的管控策略来提高耕地集约利用水平,发达地区要注重发展耕地适度规模经营,而欠发达地区则需要进一步完善强农惠农政策与机制。
This study calculated the cultivated land intensive use degree of all provinces in China, investigated its spatial differences with GIS techniques, linear regression analysis and Theil index, and analyzed its influences in different areas by constructing economic model from 1999 to 2008 which was the ＂New Deal ＂ period for cultivated land protection. Results showed that： （1） the cultivated land intensive use degree decreased from the middle and east part to the west and northeast part of China, its precedence had declined at the east, but gone up at the middle and west, and it was relatively stable at the northeast. （2）The Theil index indicated that the overall difference of cultivated land intensive use degree was very obvious, and the regional differences contributed more than the internal differences to the overall difference. （3）The state of cultivated land resource （such as the area of farmland per capita） was one of the greatest influences at the east, but the other areas were easier affected by socio-economic factors and agricultural policy. At last, the study suggested that differentiation control strategy should be adopted to improve the cultivated land intensive using level. Cultivated land should be appropriately scale operated at the developed regions, and the preferential policies and mechanisms should be further improved at the less developed regions.
出处
《农业现代化研究》
CSCD
北大核心
2014年第1期88-92,共5页
Research of Agricultural Modernization
基金
国家自然科学基金资助项目(编号:41261018)
云南省教育厅科学研究基金资助项目(编号:2013J022)
关键词
耕地集约利用
区域差异
泰尔指数
面板数据模型
土地资源管理
arable land intensive use
regional difference
Theil index
panel data model
land resource management
