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~(１３７)Ｃｓ作为大气核试验所产生的人工放射性核素，以其独特的理化性质而成为研究土壤侵蚀和泥沙沉积的一种良好的示踪源．在青藏高原风蚀地区应用~(１３７)Ｃｓ法研究了土壤风蚀的现代过程，初步查明青藏高原~(１３７)Ｃｓ背景值及其分布；通过~(１３７)Ｃｓ剖面分布态势分析，探讨不同类型土地的现代风蚀过程，认为灌丛沙堆和半固定沙地经历了风沙蚀积的交替过程，而草地和旱作农田均表现为单一的风蚀过程；经~(１３７)Ｃｓ模型计算，青藏高原风蚀地区土壤风蚀速率平均为４７．５９ｔ·（ｈｍ~２）~(－１)·ａ~(－１)，处于中度侵蚀标准．
As a kind of artificial radionuclide produced by atmospheric nuclear test, ~ (137) Cs has become a good tracer source for soil erosion and sediment deposition due to its unique physical and chemical properties. (137) Cs method was used to study the current process of soil erosion in the wind-eroded area of the Qinghai-Tibet Plateau to identify the background value and distribution of ~ (137) Cs in the Qinghai-Tibetan Plateau. The distribution of ~ (137) In the process of modern wind erosion of the land, the alternation process of aeolian and sand deposition was experienced in the shrubbery and semi-fixed sandy land, while the grassland and dry farmland all showed a single process of wind erosion. According to the 137 Cs model, The average wind erosion rate of wind erosion area is 47.59t · (hm ~ 2) -1 · a ~ (-1), which is in the moderate erosion standard.