【摘要】 用回归分析方法 ,对我国亚热带湖南会同红栲 青冈 刨花楠群落的生物生产力进行了研究 ,结果表明 ,林分总生物量为 45 1.0 2t·hm-2 ,其中乔木层、灌木层和藤本生物量分别为 42 6 .76、17.76和 1.80t·hm-2 ,枯枝落叶层现存量为 4.70t·hm-2 ,乔木层净生产量和平均生产量分别为 34.46t·hm-2 ·年 -1、13 .32t·hm-2 ·年 -1.更多还原

【Abstract】 Based on the mean DBH measurements of sample trees,the bioproductivity of subtropical Castanopsis hysrix Cyclobalanopsis glauca Machilus pauhoi community in Huitong, Hunan province was studied by regression analysis (y=a(D 2·H) b). The results showed that the total biomass of the forest was 451.02 t·hm -2 , and the component biomass of tree, shrub, liana and litter layer was 426.76,17.76,1.80 and 4.70t·hm -2 , respectively. The net production and average production of tree layer were 34.46 and 13.32 t·hm -2 ·yr -1 ,respectively.更多还原