Most of his friends are now belowground .

他的大多数朋友现在都在地下。

Effects of aboveground and belowground competition between grass and tree on elm seedlings growth in horqin sandy land .

地上竞争与地下竞争对科尔沁沙地榆树幼苗生长的影响。

Fresh weight and dry weight belowground decreased increasingly , and the differences were not significant .

地下部鲜重和干重呈逐渐降低趋势，但各处理之间差异不显著。

Important affirmation of this idea is provided in this global study of animals , in which the significance of belowground biodiversity is revealed .

这一主要主张是源自于多年来对世界各地动物研究，其中包括揭发了地下生物多样性的研究意义。