我国的“悬河”首推黄河下游地区。黄河上、中游流经黄土高原。黄土质地疏松、抗蚀件差。太行山、吕梁山、秦岭一带足我国北方的暴雨中心,夏秋季节暴雨频繁。黄土高原其他地区降水变率 China’s “hanging river” is the first to push down the Yellow River. The upper and middle reaches of the Yellow River pass through the Loess Plateau. The Loess texture is loose and the corrosion resistance is poor. The Taihang Mountains, Luliang Mountains, and Qinling Mountains are the centers of heavy rain in northern China, and frequent heavy rain in summer and autumn. Precipitation variability in other regions of the Loess Plateau