Abstract: Land use conflict is the contradiction and opposition among different development activities for land resources during the process of land development and utilization. It results in adverse effects on the social economy and ecological environment. Taking Jinghe County as the target area, a land use conflict recognition model was established, five types of land use conflicts were classified, and the spatio-temporal variation of land use conflict index was analyzed based on the land use data in 1990, 2000 and 2018. Results show that :(1) From 1990 to 2018, land use in the study area changed significantly under human activities, and the total areas of construction land, arable land, water body and grassland were increased, whereas the total areas of forest land and unused land were decreased; (2) The overall analysis on the distribution of the comprehensive index of land use conflict within the period from 1990 to 2018 indicates that more than 50% conflicts fall into mild conflict or stable and controllable areas, indicating that the land use conflict had been alleviated with the policy support of ecological protection in the study area; (3) The Changes of the comprehensive index of land use conflicts for different periods indicate that the severe conflict was the major spatial conflict in 1999, whereas the mild conflict was the major spatial conflict in 2000, and the stable and controllable conflict was the major spatial conflict in 2018; (4) Results of spatial autocorrelation analysis of land use show that the Moran's I index for 1990, 2000 and 2018 were 0.809, 0.554 and 0.507, respectively, with a downward trend. From 1990 to 2018, the cold spot areas (low conflict areas) were increased, whereas the hot spot areas (high conflict areas) were gradually decreased.

Key words: Jinghe County, land use conflict, driving force