吐鲁番盆地的生态灾害及其调控

THE ECOLOGICAL DISASTERS AND ITS CONTROL IN TURPAN BASIN

吐鲁番盆地的生态灾害具有种类多、危害面广、危害程度深等特征，并严重制约着该区绿洲经济的持续稳定发展。本文分析了每种生态灾害发生的原因、危害程度及地区分布，并提出了生态灾害调控的基本原则；综合整体性、区域分异性、持续性．最后探讨了该地生态灾害调控的一些具体措施。

Turpan basin is a close basin in Tianshan mountain.Its geography characteristic shows ring-like pattern. From outside to inside,they are mountain ridge belt,Gobi belt and Oasis belt.In the middle part of the basin,the annual precipitation is only 3. 9-25.5 mm,but the evaporation is 2879.3-3821.5 mm.The average annual temperature is 11.3℃.The highest temperature bas the record of 49.60 ℃.For lack of nature vegetation resource,the ecological environment is weak.The ecological disaster is one of the important factors which influence sustained development of the complex oasis ecosystem directly in Turpan basin.With study of the reason, harm degrees and distribution of different disasters as well as control principles are given.They are comprehensive entirety principle, regional differentiation principle and sustained development principle. Finally, in the view of integrated function improvement of oasis,some control strategies are put forward.