Title: Grassland landscape structure change and its driving factors during past twenty years in Xiwuzhumuqin,Inner Mongolia
Abstract: Based on RS and GIS,we studied the grassland landscape structure change of Xiwuzhumuqin over the past few decades.With the help of GIS software,two-period(1987,2005) remote sensing images were interpreted to extract information of grassland landscape and divided it into ten types.Applying the spatial pattern analysis software FRAGSTATS of the raster version3.3 to calculated a set of landscape indices that corresponds to the two scale 1evels of class and landscape.The results showed that the landscape spatial patterns have changed and the trend of land desertification was obviously,the proportions of artificial landscape were increasing,but general landscape patterns were stable,the area of grassland landscape accounted for its total area above 86%.The whole region showed the high fragmentation and low cohesion.With increasing of population and livestock quantity,the human activities became more and more intense and the ecology system trended to degeneration due to overgrazing and abandoned cultivation in the past 20 years.It was an important reason for landscape structure changes that the hydrological indicators and air temperature were raising.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 1
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