摘要
以天水市近年四期土地利用数据为基础,利用GIS(地理信息系统)和土地利用转移矩阵、土地利用动态度、土地利用程度综合指数等指标与研究方法分析空间变化特征与驱动力因素.结果表明:天水市生产空间缩减,生活、生态空间扩张;农业生产用地综合转移面积最大;工矿生产用地动态变化最为明显;土地利用程度各区县总体格局不变;人为因素中规划与社会政策、人口数量与分布和自然因素中高程坡度、水文气象、资源分布对空间格局、变化方向影响显著.
Abstract
Based on the land use data of Tianshui City in recent four periods,the spatial change characteristics and driving factors are analyzed by using GIS(geographic information system),land use transfer matrix,land use dynamic attitude,comprehensive index of land use degree and other indicators and research methods.The results show that the production space in Tianshui city is reduced,and the living and ecological space is expanded.The comprehensive transfer area of agricultural production land is the largest.The dynamic change of industrial and mining production land is the most obvious.The overall pattern of land use in all districts and counties remains unchanged;Human factors,such as planning and social policy,population size and distribution,and natural factors,such as elevation gradient,hydrometeorology and resource distribution,have significant effects on spatial pattern and change direction.
NETL
NSTL
维普
万方数据