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对马尾松天然林不同年龄阶段的生物产量及养分含量进行测定分析，结果表明：１５年生林分，密度为３２１０株／公顷时，其生物产量较高；２５年生林分生物生产力最高，为９．０７吨／公顷·年；针叶中Ｎ、Ｐ、Ｋ、Ｍｇ元素含量，当年叶均高于老年叶，而Ｃａ低于老龄叶；随着林分年龄的增加，凋落物的分解速度有加快的趋
Biomass yield and nutrient content of Pinus massoniana natural forest in different ages were measured and analyzed. The results showed that the biomass of 15-year-old stands was higher when the density was 3210 plants per hectare. The biomass of 25-year-old stands was the highest .07 t / ha · year; the contents of N, P, K and Mg in the needles were higher in the leaves than those in the aged leaves and Ca was lower than that in the aged leaves; with the increasing of the stand age, the decomposition rate of litter Speed up the trend