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。
Substantial progress has been made, but soil erosion is far from being under control.
这一切都取得了重大成就，但土壤侵蚀问题仍远未得到控制。
Substantial progress has been made, but soil erosion is far from being under control.
这一切都取得了重大成就，但土壤侵蚀问题仍远未得到控制。
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