营造水土保持林,不但要考虑其生态效益,还要考虑其所产生的社会效益和经济效益。多年的实践证明,灌木是迅速治理水土流失,综合开发农林牧的一条有效途径。因此,在营造水土保持林时,必须从经济观点出发,科学地选择树种,做到因地制宜、适地适树,还要考虑树种具有较高的多种效益。在灌木树种的选择上要注意以下几点:1.要选择“质量”树种。即在选择水土保持林的树种时,数量上少选,质量上优 To create soil and water conservation forest, not only to consider its ecological benefits, but also consider the social and economic benefits. Years of practice have proved that shrubs are an effective way to quickly manage soil and water loss and comprehensively develop agriculture, forestry, animal husbandry and animal husbandry. Therefore, when building soil and water conservation forests, it is necessary to select tree species scientifically from an economic point of view, so as to adapt to local conditions and suit trees appropriately, and also to consider that tree species have a high variety of benefits. The choice of shrub species should pay attention to the following points: 1. To select “quality” species. That is, when choosing tree species for soil and water conservation forests, the quantity is less, the quality is superior