采用样地编年序列法，并利用生长方程计算不同林龄云南松的个体生物量、种群生物量、地上生物量和地下生物量的变化规律。
The methods of plots arranged with age and growth equation were used to calculate the individual, population, aboveground and underground biomass of Pinus yunnanensis.
采用样地调查法，对盐池县1991年以来不同时期的老封育区、新封育区和对照区进行半干旱沙地草场的植被特征及其生物量比较研究。
The vegetation features and biomass of sandy rangeland in semi-arid area of Yanchi County, Ningxia were studied by means of plot investigation methods since 1991.
本文描述了海南岛尖峰岭热带季雨林的群落结构及地上部分生物量，采用了极点排序法给予此群落命名。
This paper described community structure and biomass of the monsoon forest in Jianfeng Mt. area, Hainan Island. The community was named by adopting P.
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