| According to the survey in Tai Yue Mountain forest including:three 30m×30m Pinus tabulaeformis plots and 19 standard trees as well as 3 analytical trees material, we studied the distribution of biomass and use the relative growth method to establish biomass modelS for various organs of Pinus tabulaeformis. We divided the roots into three classes by the degree of thickness and establish biomass model, respectively. The growth process of tree height, diameter at breast height and volume by stem analysis were studied to estimate the productivity of the tree layer of Pinus tabulaeformis forest. Finally, the biomass and carbon stock of different layers in forestry ecosystem (including the tree layer, the shrub layer, the herb layer, the litter layer and the soil layer) were also evaluated. We got the following results:1.The biomass of foliage,live branch,dead branch,stem and coarse root of small-size,middle-size and large-size tree respectively is:0.481,0.653,0.168,5.67,0.925;5.201,7.193,3.19,41.697,8.86; 16.033, 29.327,6.806,96.28,27.38 kg.2.The biomass equation of total tree,aboveground,coarse root,stem,live branch,foliage respectively is:W=0.189D2.213,W=0.199D2.14, W=0.006D2.719,W=0.274D1.898,W=0.001D3.284,W=0.009D2.433.3.The biomass density of tree layer,shrub layer,herb layer and litter layer is:166.21,0.367,0.557, 82.842 t/hm2.4.The carbon stock of tree layer,shrub layer,herb layer,litter layer and soil layer is 74.7,0.178,0.219, 26.524,149.782 t/hm2.5.The productivity of Chinese Pine forest is 6.824 t/(hm2·a)... |
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