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生物量是研究森林生态系统结构与功能的基础,生物量的估算对深入研究人工林生态系统生产力与环境因子之间的关系具有重要意义。笔者同时采用点数法和经验公式法对新疆农业大学校园内常见绿化树种的叶生物进行了估算,对比分析了2种方法得出的结果,得出白榆的叶生物量最大,圆冠榆最小,美国白蜡在两者之间。经验公式得出的叶生物量变异数小于标准枝点数法得出的叶生物量变异数,经验公式求算树种叶生物量可行。
Biomass is the basis for studying the structure and function of forest ecosystems. Estimation of biomass is of great significance for further study on the relationship between plantation ecosystem productivity and environmental factors. The author also uses the point method and empirical formula method to estimate the leaf biomass of the common greening tree species on the campus of Xinjiang Agricultural University. By comparing the results obtained by the two methods, it is concluded that the leaf biomass of the elm is the largest, American white wax is between the two. Empirical formula derived leaf biomass variation is less than the standard branch number of leaf biomass obtained from the number of variables, the formula empirical formula leaf biomass feasible.