淮安市土地利用景观格局变化及生态效应
摘要:以淮安市1988和2005年的遥感解译数据为基础,从景观多样性指数、优势度指数和均匀度指数3个方面定量分析了淮安市土地利用景观格局变化特征,并对其引起的生态系统服务价值变化进行了计算。结果表明,1988-2005年,淮安市土地利用景观多样性指数、均匀度指数总体呈现下降趋势,优势度指数总体呈现上升趋势,生态系统服务价值减少了44.87亿元,土地生态风险指数上升了0.013。
关键词:土地利用;景观格局;生态效应;淮安市
中图分类号:P901;F301.24 文献标识码:A 文章编号:0439-8114(2012)05-0894-05
Analysis on the Change of Landscape Pattern of Land Use and Its Ecological Effect
in Huai′an City
ZHANG Fei, KONG Wei, WANG Yue-xiang
(School of Urban and Environmental, Huaiyin Normal University, Huai′an 223300, Jiangsu,China)
Abstract: Based on the remote sensing interpretation data of 1988 and 2005, the characteristics of land-use landscape in Huai'an city were analyzed using landscape diversity index, landscape predominance index and landscape evenness index; and the variation of ecosystem services were evaluated. The results indicated that the landscape diversity index and landscape evenness index of land-use landscape in Huai’an city decreased; while the landscape predominance index increased; the ecosystem service values...
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