地下的
The perennial rhizomes formed closely crowed belowground networks. 多年生根茎在沙基质中形成多层密集网络结构；
Grasslands play a significant role in terrestrial ecosystem carbon cycle due to large biomass stored belowground. 摘要温带草地大部分生物量分布在地下，地下生物量在草地生态系统碳循环中起着重要作用。
S ratio (belowground to aboveground biomass ratio) has been widely used for estimating root biomass. 利用根冠比(R:S)和地上生物量来估算地下生物量是目前常用的方法，但目前缺乏根冠比的数据。
By raising questions concerning the key concepts related to restoration ecology,the actions and feedback mechanisms of belowground ec. 本文通过探讨恢复生态学的关键概念,从土壤、地下水循环、生物系统3个方面探讨了地下生态系统对生态恢复的作用机理和反馈机制。
In biomass allocation, it partials to belowground mass when resource availability is low, otherwise it invests in overground mass. 生物量分配在资源可利用水平低时,偏向于地下部分,否则资源更多的投资给地上部分;
