江苏省1980-2000(三期)景观格局变化分析

在GIS技术和FRAGSTATS软件的支持下,针对江苏省1980、1995和2000年的遥感TM图像资料,对景观格局的变化进行了分析,得出了江苏省20年间的景观格局变化的基本状况。结果表明:耕地面积减少,建造用地面积增加;TL、NP等景观指数增加,LPI指数下降,说明斑块形式趋于复杂。景观的破碎度从0.0192上升到0.0201,景观格局不稳定性变大。景观多样性指数的结果显示,研究区域的景观多样性增强。景观格局变化与自然和人文因素有关,这些为区域可持续发展提供决策信息。

Analysis on the Landscape Pattern of Jiangsu Province from 1980 to 2000

Using the TM images of Jiangsu province in 1980,1995 and 2000,this paper analyzes the changes in the landscape patterns on the platform of GIS technology and FRAGSTATS software,and has got a general idea of it in the past 20 years.The results showed that cropland has decreased and land for construction use has increased;the indices of TL,NP etc.have increased;the decreased LPI indicated that patch forms tend to complicate;fragmentation index has risen from 0.019 2 to 0.020 1,which shows that landscape patterns have become more instable;the index of diversity in landscape patterns is improved;the changes of landscape patterns are related to natural and human factors.These would provide some scientific bases for sustainable economic development in the region concerned.