肃南湿地遥感调查与湿地景观格局分析

Remote Sensing for Wetland Resources Survey and Wetland Landscape Pattern Analysis in Sunan County

利用2000、2008、2013年TM遥感影像,在遥感和地理信息系统技术的支持下,分析了肃南县湿地覆盖面积和分布状况,以及景观格局变化.研究结果表明:肃南县湿地共分为2大类10小类,2000年湿地总面积为1542.94km2.2000年以后肃南湿地面积逐渐下降,至2013年湿地总面积共减少了57km2.整个景观连接性较差且趋于破碎.景观的多样性与均匀度增加,空间分布趋向于不稳定,景观异质性增大,景观类型有向多元化发展的趋势.

Supported by remote sensing and GIS,using the TM images in 2000,2008 and 2013,this paper analyzed the wetland covered area,distribution and the changes of landscape pattern in Sunan County. In the study period,divides the wetland into 2types and 10 subtypes,The total area for wetland in Sunan county is 1542. 94km2 in 2000,after 2000 the area gradually decreased,between 2000 and 2013,the wetland area decreased by 57km2. landscape continuity is bad and fragmentation increased,the landscape diversity and evenness increased,spatial distribution tend to be unstable,The increased landscape heterogeneity showed that the landscape types tends to be more diverse.