water and soil conservation forest

常见例句

Water and soil conservation forest that is a special forest to prevent soil erosion plays a very important role in improving soil fertility.
水土保持林作为保持水土、防止土壤侵蚀的特有林种，对于提高土壤肥力具有重要作用。
The research results of mechanism of soil and water conservation forest have become the theoretical basis in the researches of soil and water conservation forest in the world.
前苏联在土壤侵蚀及水土保持林作用机制方面的研究，已成为各国水土保持林体系研究和营造的理论依据。
The history and the present situation of the research system of water and soil conservation forest system are reviewed, and the main achievements and problems are pointed out briefly.
回顾国内外水土保持林体系研究的发展历程，并就其主要成就和存在问题进行简要评述。