摘要
榆林沙区自然环境恶劣,植被稀少。因此在生态环境建设中不仅要应用乡土树种,还要引进外来优良树种,以丰富榆林市的树木资源,使绿化达到更完美的效果。而如何将乡土树种与外来树种协调应用是关键所在。只有在保护好乡土树种资源的同时,有原则、有目标、有步骤地进行引种,使之不发生生物入侵,才是正确的培育措施。
The environment of Yulin sandy region is poor and vegetation is scarcity. So not only native tree should be applied but also exotic tree should be introduced to enrich the tree resource and obtain the perfect effect. It is keys how to harmoniously apply native tree and exotic tree. It is right cultivation measure that native tree resource is protected and exotic tree is orderly introduced.
出处
《内蒙古林业调查设计》
2009年第5期49-51,53,共4页
Inner Mongolia Forestry Investigation and Design
关键词
乡土树种
外来树种
引种
应用
榆林沙区
native tree, exotic tree, introduction, application, Yulin sandy region
