secondary biomass 二次生物质
Secondary production is defined as the rate of production of new biomass by heterotrophic organisms.
次级生产力次级生产力的定义是异养有机体的新生物量的生产速率。
The results show that there are difference among different cultivation way in root system biomass, root system volume and the number of secondary root.
结果表明，根系生物量、根系体积、侧根数在不同耕作方式间差异明显，在土壤中表现为从表层到深层逐渐递减。
The density and biomass of the same plant types were not significantly different between the secondary forest and the rainforest.
次生林和雨林林下阳春砂仁生物量、产量叶面积指数和各株型密度差异均不显著。
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