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黄河中游黄土地区一般系指长城以南、秦岭以北、太行山以西、西宁以东地表覆盖有厚层黄土的地区。包括整个黄土高原及南部海拔低于800米的黄土台源及高阶地区。由于这一地区土壤均发育于黄土母质之上,又同属季风区,所以在土壤水分的性质与循环特征上存在很多相似规律性。过去把土壤水分作为一个肥力因素,研究它的状况、移动及其和作物生长
The loess area in the middle reaches of the Yellow River generally refers to the area to the south of the Great Wall, to the north of Qinling Mountains, to the west of Taihang Mountain, and to the east of Xining where the thick layer of loess is covered. Including the entire loess plateau and the southern elevation of less than 800 meters of loess source and high-level area. Since the soil in this region are all developed over the loess parent material and belong to the monsoon region, there are many similarities in the nature and cycle characteristics of soil moisture. In the past, soil moisture was used as a fertility factor to study its status, movement, and crop growth