关键词: 土壤侵蚀强度, 分级方法, 适用性, 黄河流域

Abstract: Two classification methods of soil erosion intensity are set by the Ministry of Water Resources of PR China. One is direct index method which takes soil erosion modulus or annual soil erosion thickness as the classification index. The other is indirect index method which takes some earth surface factors influencing soil erosion as the classification index. In practice, the indirect method is usually adopted because of its convenience in data collection. Based on the rapid assessment method of soil erosion proposed in the authors' previous study, the soil erosion intensity is assessed for the Yellow River basin by using the indirect method. Comparing the assessment results with the investigation results, the applicability of the indirect index method is analyzed, providing reference for the application of the indirect classification method of soil erosion intensity.

Key words: soil erosion intensity, classification method, applicability, Yellow River basin