以鄱阳湖区为研究对象,利用1985、1995、2000、2005年的遥感解译数据,结合地理信息系统的空间分析和数理统计功能以及SPSS统计分析软件,对1985--2005年间的土地利用/覆盖格局和动态演变规律进行分析,揭示了近20年来土地利用变化的时空特点,并对其主要驱动因素进行了重点研究。结果表明:①不同时期土地利用/覆盖的变化既有相似之处,又有所差别。在土地利用/覆盖变化类型中,耕地与水域之间的双向转换非常频繁;草地与耕地,草地与林地之间的转化所占比例也较大;而建设用地是造成对耕地占用最多的土地利用类型;同时每个时段由于发展的目标不同,又有一些独特的土地利用,覆盖变化特征。②近些年来,土地利用,土地覆盖动态演变主要是由政策因素、人口增长和农业经济效应等因素共同驱动作用的结果。
The spatial pattern and land use/land cover changes of Poyang Lake Region among 1985, 1995,2000, 2005 are analyzed by using of the remote sensing data, GIS spatial analysis database , mathematical statistics and statistic analysis software named SPSS. The results show:(1) In different period, the changes of land use/land cover not only have resemblance, but also have difference. The most frequent land use. change types are changes between amble land and water area; The changes are frequently between amble land and pasture, and between woodland and pasture; The area from amble land to construction land is the largest; At the .same time, in every period, there are unique characters of land use/land cover change. (2)In recently years, the major driving forces of Poyang Lake area land use/land cover change are Poyang Lake political factors, population growth and economical factor.