贵州乌蒙山区耕地与人口及经济空间变化探讨

在地理信息系统(GIS)技术的支持下,根据贵州省相关统计资料,分析了乌蒙山区从1990—2006年近20年的耕地与人口、经济的相对变化率空间分布,并引入某一特定土地利用类型相对变化率公式,对其变化趋势进行对比分析。同时引入回归分析这一数理统计方法,分析得出耕地资源受人口因素比受经济因素影响相对较大。因此,协调好人口与耕地的关系,即严格控制人口增长的同时促进耕地资源向集约化发展,是地方实施可持续发展的保障之一。

The change discussion among cultivated land,population and economy in Wumeng mountain area of Guizhou province based on GIS

According to the statistical and survey data at Guizhou provincial level,the relative change index among the cultivated land,population and economic are discussed based on GIS technology in Wumeng mountain area.And taking a formula of a certain type of cultivated land use,their dynamic evolvement is analyzed.At the same time,regression analysis which is the introduction of mathematical statistics indicated that the cultivated land was affected by demographic factor than by economic factor is relatively larger.Therefore,coordinating the relationship between population and cultivated land,strictly controlling population growth and promoting the development of cultivated land resources,is one of the local security of sustainable development.