In addition, trees are very helpful in preventing water loss and soil erosion and keeping the nutrition of soil.
此外,在防止水土流失和保持土壤营养中树木是非常有帮助的。
Research on preventing cement erosion in marine soil.
防治海水对水泥土侵蚀的试验研究。
Priority should be given to biological measures in preventing soil water erosion, and the most effective measure is to increase vegetation coverage.
防止土壤水蚀应以生物措施为主,增加植被覆盖度是最有效的措施。
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