中国东北洮儿河流域侵蚀—沉积基础数据集

利用30m分辨率ASTERGDEM数据，将东北洮儿河流域划分为5243个单一坡面，计算各单一坡面的平均坡度和平均坡长；并与乌兰浩特气象数据、全球土地覆盖数据GlobCover2009和土壤数据经过处理后，输入WEPP模型（水蚀预报模型），得到洮儿河流域的侵蚀-沉积数据，确定了13个侵蚀—沉积平衡点（坡面）。由这些平衡点形成的界限，与传统的根据高程和坡度来定性划分该区域的界限基本吻合，为定量区划提供了一种新方法。

Using ASTER GDEM data with a 30 m resolution, the Tao'er River Basin in Northeast China was partitioned into 5243 individual slope units, and the average slope gradient and average slope length for each unit were computed. Following processing and integration with Ulanhot meteorological data, GlobCover2009 global land cover dataset, and soil dataset, the consolidated dataset was fed into the WEPP (Water Erosion Prediction Project) model to derive erosion-deposition data for the entire basin. Thirteen erosion-deposition equilibrium slope units were identified therefrom. The boundaries delineated by these equilibrium units generally align with the regional boundaries traditionally qualitatively partitioned based on elevation and slope gradient, offering a novel approach for quantitative regionalization.