1) Root biomass density
根生物量密度
2) Biomass density
生物量密度
3) root count density
根量密度
1.
The results are as follows: the loblolly pine root count density increases in the growing season and reaches its climax in January or February, the end of the growing season.
结果表明 ,火炬松新根的根量密度随时间呈增长趋势 ,在生长季末的 1、2月份达到最大。
4) aboveground biomass density
地上生物量密度
5) biomass carbon density
生物量碳密度
1.
Based on the consecutive forest resource inventory data,the biomass carbon density(BCD)of dark coniferous forests(DCF)in the upper reaches of Minjiang River was calculated by using biomass expansion factors(BEF)method and its variation with age class,elevation and aspects were also examined.
利用森林资源连续清查的样地数据,基于生物量与蓄积量之间的关系模型,估测岷江上游亚高山暗针叶林地上部分生物量碳密度、碳密度年增长率及其随林龄、海拔和坡向变化的分布规律。
2.
Based on field investigation and laboratory data,spatial distribution and temporal variations of biomass carbon density(BCD) in Pinus armandi forest ecosystem in Qinling Mountains were studied in this paper.
519 8之间,顺序为叶>根>干>枝>皮;华山松林生态系统的生物量碳密度为133。
3.
Based on data in a field investigation and laboratory analysis,the spatial distribution and temporal variations of biomass carbon density(BCD) in Pinus tabulaeformis forest ecosystem in the Qinling Mountains were studied.
结果表明:碳在油松各器官中的分配以树干所占比例最大,其次为树枝,树皮最小;不同器官生物量碳密度在0。
补充资料：根生
1.寄生。 2.谓靠根生长。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条