基于遥感的石家庄市土地利用及其景观格局变化研究

Changes of Land Use and Landscape Pattern in Shijiazhuang City Based on Remote Sensing

基于石家庄市1993年TM、2000年ETM+和2007年TM这3个时相的遥感影像,获取不同时期的土地利用信息,分析了石家庄市土地利用的时空变化,并借助FRAGSTATS软件进行景观格局变化研究。研究结果表明,土地利用变化的总趋势是耕地减少,水域和建筑用地增加,土地利用综合程度指数略有下降,研究区整体的斑块数和斑块密度先增加后减少,多样性指数、均匀度指数和形状指数增加,最大斑块指数减小。

Based on the RS images of Shijiazhuang City Landsat TM in 1993,2007 and Landsat ETM＋ in 2000,information on land use in different periods is extracted,and changes in land use and landscape pattern of Shijiazhuang City are studied by FRAGSTATS toolbox.The main tendency of land use change was that the areas of cultivated land decreased greatly,the areas of water and construction land increased greatly,and the comprehensive land use index decreased slightly.From landscape structure study,the results show that patches numbers,patches density firstly increased,and then decreased,the landscape shape index,diversity index and the evenness increased,the largest patch index decreased.