STUDY OF DESERT STEPPE DYNAMIC LANDSCAPE PATTEM OF INNER MONGOIA

In this paper,take desertification grassland landscape of Etuoke county of Erdos city of Inner Mongolia for the study area to be interpreted remote sensing image data.access to nine kinds patch type and patch area and other 10 kinds of landscape indices of landscape pattern to dynamic analysis,the area is 99199.17hm2,selected in 1978,1991,1999,2002 and 2007.The results showed that: arable land,artificial architectural landscape was widening,grassland landscape on the contrary,shrub forest landscape change for the first decrease after an increase,rivers,river floodplains and wetlands landscapes as climate change,landscape fragmentation of above-mentioned was increase,The sand,salt-alkali soil and bare land landscape change with human activities associated is smaller.landscape diversity index and evenness index was increase after decrease and the change no-obvious;The human activity is the main driving factor of dynamic landscape patterns;An effective means of improve the local environment is restrictions on scale with the rapid increase cultivated land and reasonable planning the scale of cultivated land;This study is provide theoretical basis for the effective containment and control desertification,grassland degradation of the environment.