After the forest disappeared, the soil became hard and compact, like yellow cement.
森林消失后，土壤变得很糟而且紧密，像黄水泥。
The fractal theory of soil will provide scientific basis for management of forest land soil.
分形理论为林地土壤科学管理提供了理论依据。
The thin soil that covers the forest floor can be easily washed away.
覆盖在森林地表的一层薄土很容易被冲走。
It is also shown that the forest-grass vegetation has obvious control effect on soil erosion.
研究结果还直接表明，林草植被对土壤侵蚀有明显的控制作用。
The soil is very thin in the forest.
森林里的土层非常薄。
The soil is very thin in the forest.
森林里的土层非常薄。
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