极端干旱地区绿洲边缘带天然植被的保育策略--以新疆鄯善绿洲为例

Natural Vegetation Conservation of Oasis Margin in Arid Zone—A Case Study in Shanshan Oasis, Xinjiang Wei Autonous Region

合理调控和稳定边缘带是干旱区绿洲生态系统可持续发展的重要途径。针对鄯善绿洲边缘带天然植被衰退、生态功能下降等问题,采用实地调查和收集相关调研成果相结合的方法,在初步查明天然植被现状及存在问题、分析退化原因的基础上,探讨了鄯善绿洲边缘带天然植被的保育途径,认为主要应从加强现有植被的保护,加强人工林的培育,采用必要的经济手段等方面来实施。

Sustainable development of oasis system depends mainly on the stability of oasis margin in arid zone. Aiming at the issues of natural vegetation deterioration and ecological function decline, the present situation of natural vegetative and the cause of its deterioration were detected clearly by jointly adopting the methods of field investigation and related research result collection. From analyzed results for the reasons of vegetation deterioration, it can be deduced that protection measures should protect present vegetation according to their ecological characteristics, and choose species that suit local environment to enlarge artificial forestry areas, and adopt reasonable economic policy.