Analysis and Dynamic Evaluation of Eco-Environmental Quality in the Yellow River Delta from 2000 to 2020

With the rapid development of urbanization and population growth, ecological environment in Yellow River Delta has undergone significant changes. In this study, Landsat satellite data Google Earth Engine (GEE) were utilized to dynamically evaluate changes eco-environmental quality region using remote sensing index (RSEI). Additionally, CASA model was used estimate net primary productivity (NPP) explore relationship between vegetation NPP, land-use land-cover change (LUCC), reveal complexity related factors region. The results show that: (1) Over past 20 years, changed a “V” shape. near Basin is relatively better, forming diagonal “Y” shape, while areas with poorer are mainly distributed coastal edge Delta. (2) response NPP unstable. (3) Urban construction land strongly correlated RSEI, absolute value dynamic degree use as high 8.78%, transfer correlation arable RSEI weak, mudflats negatively minimum being −1.01%, There no forest RSEI. Our research can provide support for protection sustainable help local governments take corresponding measures.