黑石顶自然保护区森林生物量测定的比较分析

通过比较分析分别以D和D2 H作为变量的两个黑石顶阔叶树生物量回归方程应用于黑石顶不同植被类型样地所得结果 ,认为在使用通用的生物量回归方程计算不同群落的生物量时 ,特别是当不同群落树种组的H D关系变化较大时 ,以D2 H为变量的回归方程由于包含了树高因子 ,因此能更精确的估算生物量。比较了 4个邻近地区 (玉林、岑溪、宜山和桃源 )的杉木生物量回归方程应用于本地杉木林的情况 ,结果表明不同的回归方程计算所得的总生物量接近 ,说明可以把邻近地区杉木的生物量回归方程用于黑石顶地区杉木林生物量计算

Comparison of the Biomass Estimation Methods for the Forest at Heishiding Nature Reserve

Two regression equations for estimating biomass of broadleaf trees at Heishiding nature reserve, one based on D and the other based on D 2H(H means height), were compared. The results showed that the regression equations based on \%D 2H\% were more suitable for calculating the biomass of broadleaf trees at various kind of communities. In order to calculate the biomass of Cunninghamia lanceolata at Heishiding nature reserve, we used four regression equations used at neighbor regions to calculate the biomass of the trees. The calculating results of total biomass were similar.This meant that the regression equations for estimating biomass of Cunninghamia lanceolata used at neighber regions can be applied at Heishiding nature reserve.