地下的

The perennial rhizomes formed closely crowed belowground networks. 多年生根莖在沙基質(zhì)中形成多層密集網(wǎng)絡結構；

Grasslands play a significant role in terrestrial ecosystem carbon cycle due to large biomass stored belowground. 摘要溫帶草地大部分生物量分布在地下，地下生物量在草地生態(tài)系統(tǒng)碳循環(huán)中起著重要作用。

S ratio (belowground to aboveground biomass ratio) has been widely used for estimating root biomass. 利用根冠比(R:S)和地上生物量來估算地下生物量是目前常用的方法，但目前缺乏根冠比的數(shù)據(jù)。

By raising questions concerning the key concepts related to restoration ecology,the actions and feedback mechanisms of belowground ec. 本文通過探討恢復生態(tài)學的關鍵概念,從土壤、地下水循環(huán)、生物系統(tǒng)3個方面探討了地下生態(tài)系統(tǒng)對生態(tài)恢復的作用機理和反饋機制。

In biomass allocation, it partials to belowground mass when resource availability is low, otherwise it invests in overground mass. 生物量分配在資源可利用水平低時,偏向于地下部分,否則資源更多的投資給地上部分;