Abstract:
Land use change and its ecosystem services value in Jing River basin were studied based on the interpreted results of remote sensing images in 1986, 1995 and 2000. The results showed that grassland was the largest area of land type, followed by cultivated land, both of them accounting for more than 85% of total area, while the woodland played an important role in the ecological environment and ecosystem services was small. All of the land use types changed in different level. The mutual conversion between different land use types occurred in cultivated land, grassland and woodland. The exported and imported matrixes of area proportion reflected the sources and sink of land use type change. Regional land use changes resulted in the changes of ecosystem service value accordingly. The ecosystem service value firstly decreased and then increased, but the overall trend was reduced. The ecosystem services value of land use types were different obviously in different years and land use types. The value of ecosystem services in Jinghe River Basin was 53313 × 108 Yuan in 1986, 52556 × 108 Yuan in 1995, and 52974 × 108 Yuan in 2000, which showed that the ecosystem services in Jinghe River Basin have been improved, but the ecosystem services value in 2000 have not recovered to the level in 1986. Therefore, the vegetation restoration and reconstruction were required to be further increased and actively promoted the implementation of existing projects.