Analysis on Grassland Landscape Change during Past Twenty Years in Xiwuzhumuqin,Inner Mongolia

In this paper,the map of landscape pattern in Xiwuzhumuqin of Inner Mongolia was charted based on the method of landscape ecology and the help of geographic information system and remote sensing software.Using the spatial pattern analysis software FRAGSTATS,the landscape heterogeneity and landscape cohesion were analyzed by quantitative indicators.The results showed that the landscape spatial patterns have changed to a certain extent,and the trend of land desertification was obviously,the proportions of artificial landscape were increasing,but general landscape patterns were stable,and the area of grassland landscape accounted for its total area above 86%.With the human intervention and the climate environment change,general landscape shows that high fragmentation and low cohesion,landscape distribution shows evenness,and ecology system trend to degeneration.