【摘要】 通过对尕海—则岔国家自然保护区的调查,分析了气象灾害、气候变暖和环境蠕变对保护区生态环境的影响,提出了相应的防护措施。分析表明,气象灾害可导致植被缺水或受机械损伤;当地气候呈现暖干化趋势,20世纪90年代与60~70年代相比,年平均气温升高了0.4℃,年平均降水量减少了87.5 mm,导致部分区域草地退化、鼠害猖獗、水资源减少、生物多样性遭到破坏;环境蠕变———以国道213线改建工程为例,对保护区生态环境有一定影响。更多还原

【Abstract】 According to the investigation of Gahai-Zecha National Nature Reserves,the influence of weather disaster,climate warming and creeping environmental problems on its eco-environment is analyzed and the corresponding protection measures are shown in this paper.It shows that weather disaster can make vegetation drought or endure mechanical damage.With the climate warming and drying,average annual temperature increased 0.4 ℃ and rainfall decreased 87.5 mm during the period of 1990~1999,which compared with those during the period of 1960~1979.As a result,the eco-environment has been deteriorated,part of the grassland degraded,the damage by rats have seriously threatened,water resources reduced and the biologic diversity has been destroyed.Creeping environmental problems,such as the construction of the highway G213,has some influence on its eco-environment.更多还原