论文部分内容阅读
通过试验筛选出２０余种适应干热生境和退化山地植被恢复的乔、灌、草植物，其中属澳大利亚区系类型的桉树类和相思类生长最好．在造林技术上采用内倾式水平带状整地与调控水系统建设相结合的方法，并在育苗、造林时间、造林后管理等方面进行了研究，使造林保存率提高到８０％～９０％，营建了多种不同结构和功能的植物群落，治理区森林覆盖率从原来的５％增加到现在的６５％，项目投产比达１∶２以上，初步取得了良好的社会、生态和经济效益．
More than 20 species of Qiao, Shrub and Caragana that adapt to dry-heat habitat and degraded mountain vegetation were screened out through experiments. Eucalyptus species and Acacia species belonging to Australian fauna were best grown. In the afforestation technology, a combination of introverted horizontal strip-like soil preparation and water control system construction is adopted, and researches on seedling raising, afforestation time and post-afforestation management are carried out so that the afforestation preservation rate can be raised to 80% -90% A variety of plant communities with different structures and functions have been established. The forest coverage in the control area has increased from 5% to 65% now, and the project put into production reaches more than 1: 2, which has initially achieved good social, ecological and economic benefits.