Assessing Habitat Quality and Identifying Influencing Factors in the Township Areas of Dawen River Basin

Dawen River is the development center of the ancient cultural region in Shandong. It is of great significance for the protection, inheritance and development of the basin civilization to study the quality of the habitat in the river basin. This paper builds ecosystem ternary model of habitat quality, using the InVEST model to evaluate the habitat quality of the river basin in 2020, combined with the spatial correlation model to explore the spatial characteristics, and the influence of habitat quality, habitat degradation of nine factors for exploratory regression, is divided into social factors, economic factors and natural factors for analysis. The results show that:(1) The habitat quality in Dawen River Basin varies greatly, showing habitat fragmentation and obvious spatial differentiation; (2) the habitat quality in Dawen River Basin shows an obvious trend of degradation, and the areas with high habitat degradation occupy most of the basin, showing an expansion trend of point-line-surface; (3) social factors, economic factors and natural factors have different effects on habitat quality and habitat degradation, and the influence of land development intensity is most significant. The results provide guidance for the politics of ecological protection in the Dawen River Basin.