If a nonnative plant species invades an above-ground community of flora and fauna, it can alter links between the native above-ground community and the below-ground soil community.

如果一种外来植物入侵了地上的动植物群落，就会改变地上群落和地下土壤群落之间的联系。

youdao

They have designed a system which pumps up water from nearly 1,000 feet below ground.

他们设计了一个能从地表以下1000英尺处抽水的系统。

《柯林斯英汉双解大词典》

Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground.

对付干旱的另一种方法是在地面上种植特定数量的植物，并且确保地下有广大的根系网络。

youdao

Over the last two decades, supercomputing allowed new skill levels in interpreting seismic data of below-ground structures.

FORBES: A Gold Mine In Oil Exploration

The new facility near Tongchang is far more advanced, with a 100-foot-tall launch tower and a below-ground tunnel to direct rocket exhaust.

WSJ: U.S. Warns North Korea Over Rocket Launch

The options for shelters are many: above-ground, below-ground, mounted in the garage, on the patio, on a poured slab or even in a space carved out beneath the slab.

CNN: A tornado's heading your way: Now what?