Spatial-temporal variation and driving factors of eco-environmental quality in Henan section of the Yellow River Basin

The Henan section of the Yellow River basin is a critical component of the Yellow River's national strategy, and the quality of its ecological environment is important for achieving a harmonious and high-quality development between human and nature. Based on the data of Sentinel-2A and Landsat 8 TIRS in the GEE platform, this paper calculates the remote sensing ecological index (RSEI) to evaluate the ecological environmental quality of the Henan section of the Yellow River basin from 2019 to 2021, and uses geographical detectors to analyze the driving factors (included meteorological factors, terrain factors, human activity factors and other factors, a total of 12 factors) of the eco-environmental quality in the study area. The findings reveal that the ecological environment quality of the study area is excellent on the whole, and show spatial differentiation characteristics under the interaction of various driving factors. Among which land use type, elevation and soil type are the main influencing factors and the most important driving factors of eco-environmental quality.