2005•Shengtai kexueRequires access

Study on the change of landscape pattern of coastal wetland in Xiamen City

Peng Chen

Abstract

In this paper,three Landsat TM images(respectively obtained in1986,1993 and 2003) were interpreted as basic information sources.And the basic data of coastal wetland were obtained with the application of GIS-tech supported by ArcGIS.By calculation and analysis of the landscape pattern index(LPI),the change characteristics of LPI of coastal wetland over the past 17 years were studied.The study shows that there is a decrease in wetland area,from the 419.764 km2 in 1986 to the 394.237 km2 in 2003,with an increase in wetland patcheness,from 810 of 1986 to 1092 of 2003,the landscape fragmentation index of wetland is continuously rising,while the diversity and evenness are decreasing.

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Key concepts: Wetland, Species evenness, Fragmentation (computing), Environmental science, Diversity index, Geography, Physical geography, Hydrology (agriculture)