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用人工模拟降雨仪研究低丘红壤区不同土地利用方式下植被覆盖与管理因子Ｃ值，并应用Ｃ值对土地利用方式的可持续性进行分析评价。结果表明，合理的土地利用方式，必须有利于降低Ｃ值，提高土壤渗透率，增强土壤蓄水力，以达到减少水土流失和提高经济效益的双重目的。
Artificial rainfall meter was used to study the vegetation coverage and management factor C under different land use patterns in the hilly red earth area. The C value was used to evaluate the sustainability of land use patterns. The results show that rational land use must be beneficial to reduce the C value, increase soil permeability and enhance soil water storage, so as to achieve the dual purpose of reducing soil erosion and increasing economic benefits.