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土壤可蚀性(K值)是反映土壤侵蚀规律的重要指标,有关其研究成果已有大量研究论文报道。通过总结前人的研究成果,从土壤可蚀性评价指标的确定、空间变异性和不确定性以及研究方法等方面,介绍土壤可蚀性的研究进展。同时,指出了在今后的研究中需要形成统一的评价指标对土壤可蚀性进行评价,可利用泥沙平衡原理分析和验证可蚀性公式的适用程度,并建议建立K值数据库为水土流失监测、预报和治理提供参数基础。
Soil erodibility (K value) is an important index to reflect the law of soil erosion. A great deal of research papers have been reported on its research results. By summarizing the research results of predecessors, this paper introduces the research progress of soil erodibility from the aspects of the determination of soil erodibility evaluation index, spatial variability and uncertainty and research methods. At the same time, it is pointed out that in future studies, it is necessary to form a unified evaluation index to evaluate soil erodibility. The principle of sediment balance can be used to analyze and verify the applicability of erodibility formula. It is suggested that a K value database be established for soil erosion monitoring , Forecast and management provide the parameter basis.