Effects of Land Use Change on Ecosystem Service Values of Horqin Sandy Land

tudying the changes of land use on ecosystem service values can assess quantitatively the effects of land use activity on the regional eco-environment.Based on the land use data of 1995 and 2000,and referring to the table of Chinese land ecosystem service value of unit area which was established by Xie Gaodi,etc.,the effects of land use change in Horqin Sandy Land on ecosystem service value were estimated.The result indicates that from 1995 to 2000,the area of farmland increased 4.87%,the area of forestland decreased 2.25%,and of grassland decreased 0.03%,of water bodies decreased 1.32%,of wetland increased 0.54%,and the land of rural-urban,industrial mining and residents reduced 3.21%,unused land decreased 8.83%.The land use in the study area were different from region to region,as most county kept abusing land by destroying forestland and grassland.The total ecosystem service value in Horqin Sandy Land increased from 146.367×109 yuan to 146.736×109 yuan in period of 1995-2000.There was 0.25% net increment of 369×106 yuan,and the increment was not caused by the extent of farmland,but by the effective management on the sandy land in some counties.