基于遥感的平顶山市土地利用及其景观格局变化研究

基于平顶山市1994年TM和2002年ETM 这2个时段的遥感图像,获取不同时期的土地利用信息,分析了平顶山市土地利用时空变化,借助FRAGSTATS软件进行了景观格局变化研究。研究结果表明,土地利用变化的总趋势是耕地、林地减少,荒草地、工矿用地、城市用地增加,土地利用综合程度指数增加;从景观尺度上看,斑块密度、多样性指数、优势度和均匀度指数增加,最大斑块指数、景观形状指数减小。最后提出了生态可持续发展对策。

Changes of Landuse and Landscape Pattern in Pingdingshan City Based on Remote Sensing

Based on the RS images of Landsat TM in 1994 and Landsat ETM in 2002, information on landuse in different periods is extracted,and changes in landuse and landscape pattern of Pingdingshan City are studied.The main tendency of landuse change was that the areas of cultivated land and wood land decreased greatly,and however,the areas of urban land,industry and mining land and weed land increased greatly.The comprehensive landuse index decreased remarkably.Landscape structure and landscape heterogeneity also changed greatly,for patches density,diversity index,dominance index and the evenness increased.The largest patch index and the landscape shape index decreased.At last,the countermeasures for sustainable ecological development are brought forward.