对子午岭林区林地及开垦地进行野外调查及室内分析，探讨人为加速侵蚀对土壤肥力可持续性的影响。结果表明：人为加速侵蚀使地带性土壤遭破坏，表土每年流失０．６～１．２ｃｍ；与林地相比，林地开垦后７和２０年的农地土壤中，＞０．２５ｍｍ水稳性团聚体减少了４０％和８９％；引起土壤水、气、热、养分等循环失调，土壤生态系统被破坏、可持续性减弱。针对目前现状，提出了促进土壤良性发展的措施 Field investigation and laboratory analysis of woodland and reclaimed land in Ziwuling forest area were conducted to investigate the impact of anthropogenic accelerated erosion on the sustainability of soil fertility. The results showed that the man-made accelerated erosion damaged the zonal soil, and the topsoil lost 0.6 ~ 1.2 cm per year. Compared with the woodland, the soil stabilized more than 0.25 mm in the 7 and 20 years after the forest land reclamation 40% and 89% reduction in body size, causing cycle disorders such as soil water, gas, heat and nutrients, soil ecosystem destruction and weakened sustainability. According to the current status quo, we put forward measures to promote the benign development of soil