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。

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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。

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They had no choice but to build the pipes above ground and then cover them with dirt.

他们别无选择，只能把管道建在地面上，然后用泥土覆盖。

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Leave about two or three centimeters above the ground so the plant will re-grow.

VOA: special.2010.10.12

Before the late 19th century, diamonds were mined from rivers and other above-ground deposits.

FORBES: Fracture Lines

The WGC report estimated that production increases the above-ground stock at a rate of 1.7% per year.

FORBES: WGC's Artigas: Gold Remains 'Under-Owned' Asset In Portfolios

On the flip side, above-ground bunkers, rather than those built underground, are often handsomely proportioned, neoclassical structures.

WSJ: New Lives for Nazi-Era Bunkers