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对立地指数为１４的马尾松幼林地施肥，结果表明，施肥对林地土壤肥力有明显作用，各施肥处理均不同程度的改善土壤肥力状况，提高林地保水保肥能力。未施肥的处理则随林木生长土壤肥力逐渐下降。
Fertilization of Pinus massoniana young forest with an index of 14 showed that fertilization had a significant effect on the soil fertility of the forestland. All the fertilization treatments improved soil fertility to some extent, and improved the ability of water and fertilizer retention. The treatment without fertilizer decreased with the growth of soil fertility of forest trees.