The timbers of our country man made forest have poor quality and some defects, which indicate their low strength and unstable size.

我国目前人工林本材材质差、缺陷多，主要表现在强度低、尺寸稳定性差。

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Saihanba in Hebei Province was once a desert, but now it has become the biggest man-made forest in China.

河北省的塞罕坝曾经是一片沙漠，但现在它已经成为中国最大的人工林。

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Our man-made forest growing stock per hectare poses/ records only 49 cubic meters that equals only over 3 cubic meters per Mu.

我国人工林森林蓄积量每公顷只有49立方米，也就是一亩地只有3点几个立方米。

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The Forestry Commission survey of specially-created bat boxes revealed eight species living in the 155, 000 acre (63, 000 hectare) man-made forest.

BBC: Study shows Kielder Forest bats thriving

"If extreme droughts like these become more frequent, the days of the Amazon rainforest acting as a natural buffer to man-made carbon emissions may be numbered, " forest ecologist Simon Lewis, from University College London, has said.

CNN: Drought-stressed trees face race to adapt

The man-made pond, which is in a city-owned forest, is estimated to be 4 to 5 feet deep with a capacity of about 50, 000 gallons.

CNN: Maryland pond drained in anthrax probe