Spatiotemporal Variation Analysis of Ecological Environment Quality in the Yellow River Basin in 2023

The Yellow River Basin is a crucial ecological barrier in China, holding significant strategic importance for ecological security and sustainable development. In recent years, the Yellow River Basin has faced a series of ecological challenges like ecosystem degradation, soil erosion, and desertification, threatening the ecological environment. Timely and quantitative characterization of the spatiotemporal changes in ecological quality is paramount for the protection and sustainable development of the ecological environment in the Yellow River Basin. This study utilized MODIS data from 2023 to extract four ecological indicators: Greenness, Wetness, Dryness, and Heat. The Principal Component Analysis (PCA) method was applied to calculate the Remote Sensing-Based Ecological Index (RSEI) for assessing and analyzing the ecological quality in the Yellow River Basin. The RSEI can effectively reflect the dynamic changes in ecological environment quality across different periods and regions of the Yellow River Basin.