摘要
采用时间序列法、耕地动态度模型和统计分析法,对云南省1997～2005年耕地数量动态变化的驱动因子及导致其变化的原因进行分析。结果表明:耕地类型变化以旱地的变化最为明显,而耕地总面积和人均耕地变化面积处于下降的趋势;其变化除了受人口和经济增长影响外,非农建设、生态退耕、自然灾毁、农业结构调整以及土地开发、土地复垦、土地整理等驱动因子对耕地变化也起到了进一步的促进作用。其中,生态退耕因子是导致耕地减少的最主要驱动因子,而土地开发因子是耕地增加的重要途径。
Based on the method of time series, model of cultivated land dynamic degree and method of statistics, the driving forces and the reasons of variation about the quantity of the cultivated land from 1997 to 2005 in Yunnan Province were analyzed. The result indicated that the variation of dry land on all types of cultivated land was the most obvious, the area of total quantity and per capita of the culti- vated land increasingly descended. In addition, the increase in population and economy, and the driving forces of non-agricultural construction, ecological restoration, natural disaster, agricultural restructure, land exploitation, land reclamation and land consolidation had an influence on the variation of cultivated land. The ecological restoration was a dominant driving force of the land loss, but the land exploitation was the most importance of land increase.
出处
《云南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第1期75-80,共6页
Journal of Yunnan Agricultural University:Natural Science
基金
云南省国土资源厅资助项目(2005723)
云南省教育厅基金项目(2010J046)
关键词
耕地变化
驱动因子
生态退耕
土地开发
variation of cultivated land
driving forces
ecological restoration
land exploitation
