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通过建立２８个不同营林措施的径流小区，对杉木世行造林地水土流失及土壤肥力进行定位研究．结果表明：炼山清理迹地造林导致了林地严重水土流失，林地６年的水、土、肥流失分别是不炼山林地的３．１、１９．７和６．１倍；穴状整地造林可比全垦、带垦整地减少３７．６５％和２３．４２％的土壤侵蚀量；扩穴连带抚育水保效果不明显．杉木世行造林模式可比传统造林模式减少７．７６％的土壤侵蚀量和１１．３５％的液体径流量，造林后林地表层养分指标呈下降趋势，主要是林地水土流失引起的．
By establishing 28 runoff plots with different silviculture measures, the paper studies the soil and water loss and soil fertility of afforestation in Fir in China. The results showed that the afforestation of refining land resulted in serious soil erosion of forest land. The losses of water, soil and fertilizer in forest land for 6 years were 3.1, 19.7 and 6.1 times that of non-forest land respectively; All reclamation, land reclamation reduce 37.65% and 23.42% of the amount of soil erosion; Expanding hole joint protection water conservation effect is not obvious. Compared with the traditional afforestation model, the afforestation model of Chinese fir reduces 7.76% of the soil erosion and 11.35% of the liquid runoff. After the afforestation, the surface nutrient indicator of forest land shows a decreasing trend, which is mainly caused by the water and soil erosion in the woodland.