摘要
以甘肃省87个区县2006年土地利用状况为依据,建立了包括17个评价因子的土地利用综合效益评价指标体系。在此基础上,采用因子分析法和空间自相关分析,对甘肃省各县土地利用综合效益及其空间分异进行了评价。结果表明:甘肃省各县区土地利用综合效益空间差异明显,集约利用、生态和粮食安全因子存在显著的空间自相关,土地集约利用分异程度最大。研究结果对制定差异化土地利用战略从而实现甘肃省土地资源的合理利用与调控,促进区域之间以及社会、经济与生态环境的协调发展具有参考意义。
Based on the land use status and the natural and socio-economic conditions of 87 districts and counties in Gansu Province in 2006, the evaluation indicator system of comprehensive land use efficiency was established, which consisted of 17 evaluating indicators, then the spatial variation of land use efficiency were analyzed and evaluated by using factor analysis and global/local spatial autocorrelation methods. Results showed that the land use efficiency differed greatly in different districts and counties. The spatial distribution of intensive use factor, environment factor and food security factor and social progress factor of the counties showed positive autocorrelation, among which, intensive use factor of land use had the most remarkable spatial variation. The results are important for establishing differential land use strategy so as to realize reasonable land use and adjustment, coordinative development among regions and socioeconomic and eco-environment in Gansu Province.
出处
《土壤》
CAS
CSCD
北大核心
2010年第4期658-663,共6页
Soils
基金
国家社科基金重点项目(08AMZ003)
甘肃省自然科学基金项目(0710RJZA104)
西北师范大学科技创新工程项目(NWNU-KJCXGC03-60)资助
关键词
土地利用综合效益
空间分异
空间自相关
甘肃省
Comprehensive land use efficiency, Spatial differentiation, Spatial autocorrelation, Gansu Province
