Ecological environment quality evaluation and its influencing factors in yuecheng district based on remote sensing ecological index

The regional ecological environment quality investigation is an important basis for ensuring national ecological security and evaluating changes in urban environmental quality. Based on remote sensing image data from 2001, 2010, and 2021, this study calculates humidity (WET), greenness (NDVI), heat (LST), and dryness (NDBSI) on the ENVI platform, constructs a remote sensing ecological index to assess the ecological environment of Yuecheng District, Shaoxing City, and quantitatively analyzes the influencing factors based on geographic detectors and the grey correlation degree. The results showed that (1) from 2001 to 2021, the overall ecological environment quality of Yuecheng District was between medium and good, and the proportion of medium and good ecological grades in the three years was 84.11%, 84.13%, and 85.88%, respectively. (2) The spatial distribution gradually improved from the middle to the surrounding area. The areas with poor ecological environments were mainly distributed in the central area, whereas the better areas were mainly distributed in Jianhu Street and Fusheng Town. (3) The quality of the ecological environment resulted from a combination of multiple factors, with vegetation coverage being the most important one, and population influences in economic aspects also having a significant impact. In summary, the ecological environment quality of Yuecheng District is currently increasing. The government needs to continue to implement the “two mountains” concept, implement ecological practices, and take the road to sustainable development.