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本文研究了三峡库区（湖北宜昌县）马尾松人工林乔灌草型及乔草型林分结构各器官生物量的分布状况及与森林水文效应的关系，林分叶面积指数和叶面积密度的变化情况，建立了相应的数学模型，为探讨生态经济效益最佳的林分结构提供依据。
In this paper, the distribution of biomass of each organ of Pinus massoniana and Arborvitae Pinuenstris plantation in the Three Gorges Reservoir Area (Yichang County, Hubei Province) and its relationship with the forest hydrological effects were studied. The leaf area index and leaf area density The corresponding mathematical model was established and the basis for exploring the stand structure with the best ecological and economic benefits was provided.