Ecological Performance Evaluation and Driving Factors Analysis in the Yellow River Basin

Based on the environmental data from 2007 to 2021, this paper takes 9 provinces in the Yellow River Basin as the research object, introduces the PSR model to construct the ecological performance evaluation index system of the study area to evaluate the ecological performance status, and uses the principal component analysis, entropy method and other related methods to calculate the ecological indicators. The results show that: (1) he ecological security index of the Yellow River Basin has been in a relatively unsafe state for a long time. (2) The ecological security status of the upper reaches of the Yellow River is obviously worse than that of the middle reaches. In recent years, the ecology of the lower reaches of the Yellow River is good, which has been greatly improved. (3) The ecological situation of Shandong Province is obviously better than that of other provinces and cities. (4) Through the study of driving factors, it can be found that the level of educational development, financial development, precipitation and other factors have a significant impact on the ecological security index of the 9 provinces.