论文部分内容阅读
农地林业在保持土壤肥力方面的作用,已逐步成为研究控制侵蚀和制定水土保持方针政策的一个重要因素.这一措施将覆盖物和树篱的作用结合在一起,提供了有效利用坡耕地的方法,并逐步得到推广.
The role of agro-forestry in maintaining soil fertility has gradually become an important factor in the study of policies to control erosion and to formulate water and soil conservation, a measure that combines the role of cover and hedge and provides a means of effectively utilizing sloping farmland , And gradually get promotion.