Abstract: The Qinling Jinqian River Basin and Bahe River Basin were selected as the research objects, and landscape pattern analysis was used to evaluate the ecological status of the basin and interpret the ecological process. Based on the remote sensing images of 2000, 2008 and 2016 as the main information sources, the land use status and landscape pattern of the two river basins were studied. The results showed that the area of forest land, unused land and water areas in the Jinqian River Basin increased, while grassland, construction land, and cultivated land decreased. The area of forest land and construction land in the Bahe River Basin increased, and unused land, waters, cultivated land, and grassland decreased. Judging from the landscape pattern index of the two river basins, the advantage of the Jinqian River waters development is getting higher and higher, and the advantage of Bahe waters development is higher than other land types. In 2000 and 2015, the fragmentation of the landscape in the two river basins decreased, and the development of the study area tended to be concentrated. There are differences in the spatial distribution of landscape vulnerability and the distribution of each level in the two river basins. The level of landscape vulnerability is consistent with the intensity of land use. The research results can provide a scientific basis for the coordinated development of eco-economic development in the Qinling Mountain Basin.

Key words: Qinling North and South Basin, landscape pattern, vulnerability