Inferring Land Conditions in the Tumen River Basin by Trend Analysis Based on Satellite Imagery and Geoinformation

The aim of this study was to map the land condition within area Tumen River Basin (TRB), located on Sino–North Korean border, using trend analysis environmental factors. normalized difference vegetation index (NDVI) and surface temperature (LST) trends over past 30 years were analyzed identify areas that have undergone degradation, restoration, and/or a transition. Landsat NDVI LST obtained Google Earth Engine (GEE) platform. Erosion also gauged same period Revised Universal Soil Loss Equation (RUSLE). Our results showed only 0.3% TRB underwent change can be characterized as statistically significant period. We therefore infer degradation may not major concern in area. Areas with upward soil loss accounted for 0.8% basin’s footprint mainly distributed upstream North Korea. However, more than 80% found suffering from water stress, 10% these most downstream.