Landscape Pattern Analysis and Its Ecological Benefits in Oasis Plantation of Moyu County
墨玉县绿洲人工林景观格局分析及其生态效益

Using 1990,2009 TM and 2000 ETM remote sensing images,the land use information of oasis plantation and its changing catachrestic were analyzed by ERDAS and GIS,and the landscape pattern and landscape index were analyzed by FRAGSTATS,the results showed that: the study area mainly composed of desert and gobi desert which about 70% of the total area.In recent two decades,Land use style changed greatly,the area of farmland and water reduced.The main reason of Severe degradation of vegetation is changes in precipitation patterns by global climate changing,changes of oasis plantation management and development policy.In recent two decades,landscape isolation and landscape fragmentation show downward trend,and,landscape path shape diversified,it's not conducive to management.The construction of water facilities,such as canals,provide guarantee for the plantation development,but it increased water consumption and went against with ecosystem stability.The oasis plantation has ecological benefits,such as sand fixation,soil improvement,water conservation,biodiversity maintenance and social &; economic benefits.