祁连山（北坡）生物多样性分析

祁连山地理位置特殊，自然生态系统复杂，生物资源丰富，珍稀动植物种类繁多，动植物经济价值较高。区内有森林、草原、荒漠、寒漠、冻原、农田、水域、冰川等多种自然生态系统；１０４４种高等植物；２６７种野生动物；２１８种天敌昆虫；９８８种森林害虫。高等植物中有药用植物３００多种，属国家二级重点保护的植物２种；野生动物中属国家一级重点保护的动物１２种，属国家二级重点保护的动物３８种；是我国西北地区重要的生物基因库。

Analysis of the Biodiversity in Qilian Mountains

With a special geographical position,Qilian Mountains has acomplicated ecosystem which are composed of forest,grassland,desert,tundra,glacier,river and farmland,and also has a gieat variety of rareplants and animals which are greatly economic. There are 267 wildlifes,218 nataral enemy insects,988 forestry injurious insects,1044 higher plantsof kinds which are 300 types of medical plants.Two kinds of plants belongto the second special protection,twelve and thirty-eight kinds of wildlifesare the first and second special protection respectively. It is the biologicalgene depot in northwest of our country.