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本文是福建武夷山森林生态系统研究的一部分，主要讨论黄山松（Pinustaiwanensis）群落的氮磷累积和循环。测定结果表明：（1）群落现存量中氮（N）、磷（P）的库量分别为925．844kghm-2和45．981kghm-2，其中地上部分别为719．438kghm-2（占总库量的77．706%）和35．534kghm-2占77.280％），地下部分别为206．406kghm-2（占22．294％）和10．447kghm-2（占22.720％）；（2）N、P的生物循环中，年吸收量分别为65．344kghm-2和2627kghm-2，年存留量分别为37．019kghm-2和1．695kghm-2，年归还量分别为28．325kghm-2和0.932kghm-2；（3）氮、磷的富集率分别为1．324和1．083两者均大于1，说明该群落对N、P仍在不断累积。
This paper is a part of the research on forest ecosystem in Wuyishan of Fujian Province, mainly discussing the accumulation and circulation of nitrogen and phosphorus in Pinus taiwanensis community. The results showed that: (1) The stocks of nitrogen (N) and phosphorus (P) in the community were 925.844 kghm-2 and 45.981 kghm-2 respectively, of which the above-ground parts were 719.438 kghm-2 77.706% of the total and 77.280% of the 35.534 kghm-2), 206.406 kghm-2 (22.294%) and 10.447 kghm-2 (22.720% N and P were 65.344 kghm-2 and 2627 kghm-2, respectively. The annual storage was 37.019 kghm-2 and 1.695 kghm-2, respectively, and the annual restages were 28.325 kghm-2 And 0.932 kghm-2, respectively. (3) The enrichment rates of nitrogen and phosphorus were 1.324 and 1.083, respectively, which were both higher than 1, indicating that N and P in this community were still accumulating.