干旱区极端环境下营造固沙林的探讨

Discussion on Constructing The Dune-fixation Forest in Extreme Environments in Arid Region.

干旱区环境极端恶劣,近年来,由于人为干扰,荒漠化面积扩大,使本以脆弱的生态系统逆向发展,给人们生活带来影响。因此,目前防沙治沙已成为一件意义重大而又十分艰巨的任务。其中,林业的建设有不可替代的作用,在固沙林营造过程中,要因地制宜,切合实际,选择适宜的树种,合理的搭配,以水为平衡中心,确定适当的种植密度,建立一个完善的固沙林体系。本文着重讨论固沙林营造的措施。

There is the extreme worse environment in the arid region .In recent years, because of artificial interference, the desertification continues extending, makes the weak ecosystem develop reversely, brings influence to people's life. Therefore, defending and rectifying the sand has become significant and hard mission. Among them, the function of the forestry construction can't be replaced. In the process of constructing the dune-fixation forest, we should suit measures to local conditions, properly choose the dune-fixation forest by terms of corresponding sites, reasonably match them, regard water as the equilibrium center, design the appropriate density, establish a perfect dune-fixation forest system. This text emphasizes on discussing the measures that we construct the dune-fixation forest.