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利用东北落叶松,南方杉木、马尾松、栎类和西北山杨5个树种(组)的实测数据,对3种平均生物量转换系数计算方法进行了比较分析,并利用假设检验方法,对落叶松和马尾松、2个区域杉木的生物量转换系数进行了差异显著性检验。结果表明:利用算术平均法计算平均生物量转换系数是合适的,阔叶树的生物量转换系数大于针叶树;落叶松和马尾松的生物量转换系数无显著差异,而2个区域杉木的生物量转换系数差异显著。
Based on the measured data of five species (groups) of Larix principis-rupprechtii, Cunninghamia lanceolata, Pinus massoniana, Quercus mongolica and Populus euphratica, the methods for calculating the average biomass conversion coefficients of the three species were comparatively analyzed. By using the hypothesis testing method, Pinus massoniana and Pinus massoniana, the coefficient of biomass conversion of two regions of Chinese fir was significantly tested. The results showed that it was suitable to calculate the average biomass conversion coefficient by means of arithmetical mean and the biomass conversion coefficient of broad-leaved tree was larger than that of conifers. The biomass conversion coefficients of larch and masson pine did not differ significantly, but the biomass conversion coefficients Significant difference.