Whereas many estimates about zooplankton had been based on biomass or functional groups, she has been trying "to put species back in the equation," she says.

鉴于许多对浮游生物物种分类的估计是基于生物量。

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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。

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Based on the data of forest resources inventories of Henan Province in 2003, forest biomass carbon storage is estimated using regression equation between biomass of various tree species and volume.

利用2003年河南省森林资源清查资料，建立不同优势树种生物量与蓄积量之间的回归方程，对河南省森林的碳储量进行了推算。

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