Traditional slash and burn farming methods have exhausted the soil.

刀耕火种的传统耕作方式已经使土壤枯竭了。

《柯林斯英汉双解大词典》

In ancient times, when the forests were gone and the soil was exhausted in one place, people could move to another.

在古时候，当一个地方的森林消失、土地耗竭之后，人们可以转移去另一个地方。

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Contrast with the rich and poor year bamboo forest, common bamboo forest exhausted more soil nutrient and has no-obvious residue effect of fertilization.

均年竹林与大小年竹林相比，养分消耗多，积累少，施肥没有明显持续效应。

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Contrast with the rich and poor year bamboo forest, common bamboo forest exhausted more soil nutrient and has no-obvious residue effect of fertilization.

均年竹林与大小年竹林相比，养分消耗多，积累少，施肥没有明显持续效应。

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