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中山湿性常绿阔叶林是云南省亚热带山地植被垂直带的主要类型，其中分布在哀牢山上的木果石栎、景东石栎、腾冲栲林（Ｌｉｔｈｏｃａｒｐｕｓｘｙｌｏｃａｒｐｕｓ、Ｌ．ｃｈｉｎｔｕｎｇｅｎｓｉｓ、Ｃａｓｔａｎｏｐｓｉｓｗａｔｔｉｉｆｏｒｅｓｔ）尤其具有代表性。本文用收获法、相关曲线法测定并估算了该群落近熟林和成过熟林的生物量与年平均净积累量，结果分别为５０８．５７ｔ／ｈｍ２，１２．１０５１ｔ／（ｈｍ２·ａ）；２９３．０４ｔ／ｈｍ２，７．７４４３ｔ／（ｈｍ２·ａ），对产生差异的原因作了分析。林分的叶面积指数分别为１０．０４和８．９６。文中还提出了群落乔木优势种各器官生物量估测的回归模型，并从生物量的角度阐明建群种在群落中的地位。
The middle evergreen broad-leaved evergreen broad-leaved forest is the main type of vertical belt in the subtropical mountainous vegetation in Yunnan Province. Among them, Lithocarpus quercus, Lithocarpus xylocarpus (L.chintungensis) and Castanopsis wattiiforest Representation. In this paper, the biomass and annual net net accumulation of near-mature and over-mature forests in this community were determined and compared with the harvest method and the correlation curve method. The results were 508.57 t / hm2 and 12.1051 t / (hm2 · a) ; 293.04t / hm2, 7.7443t / (hm2 · a), the reasons for the differences were analyzed. The leaf area index of stand was 10.04 and 8.96 respectively. The paper also proposed a regression model to estimate the biomass of each dominant tree species in community and clarified the status of the species in the community from the perspective of biomass.