J4 ›› 2005, Vol. 23 ›› Issue (3): 53-57.

• 论文 • 上一篇    下一篇

环境变化与尕海一则岔自然保护区维护

段丽洁1,2张镭1.2李英华1,2胡向军1,2   

  1. 1.兰州大学大气科学学院,甘肃兰州730000:2.甘肃省干旱气候变化与减灾重点实验室,甘肃兰州730000)
  • 收稿日期:2005-05-17 修回日期:2005-08-01 出版日期:2005-09-30 发布日期:2005-09-30
  • 作者简介:段丽洁(1982-),女,山西芮城人,硕士研究生,主要从事大气物理与大气环境研究工作.
  • 基金资助:

    国家高校优秀青年教师教学科研奖励计划,甘肃省环境科学基金(GH99-13)资助

Environmental Changes  Gahai一Zecha and the Maintenance of Nature Reserves

DUAN Li一]ie1,2.,ZHANU Lei1,2,LI Ying一hua1,2,HU Xian}一jun1,2   

  1. (1. College of Atmospheric Sciences,Lanzhou University,  Lanzhou 730000,China;2. Kcy Laboratory of Arid Climatic Changing and Reducing Disaster of Uansu Province, Lanzhou 730020,China
  • Received:2005-05-17 Revised:2005-08-01 Online:2005-09-30 Published:2005-09-30

摘要:

通过对尕海一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;当地气候旱现暖干化趋势,20 世纪90年代与60-70年代相比,年平均气温升高了0.4  C,年平均降水量减少了87. 5 mm,导致部分区域草地退化、鼠害猖撅、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

关键词: 自然保护区, 干旱, 气候变暖, 气象灾害, 人类l动, 环境保护

Abstract:

 According to the investigation of Uahai一Gecha National Nature Reserves,the influence of weather disaster, climate warming and creeping environmental problems on its eco-environment  is analyzed and the corresponding protection arc shown in this paper,  It shows that weather disaster can make vegetation drought climate warming and drying, average annual temperature increased 0. }  C and rainfall 1990一1999,which compared with those during the period of 1960一1979.  As a result rated,part of the grassland degraded,the damage by rats have seriously threatened,
Or endure mechanical damage. mcasrcs With the decreased 87.5 mm during the period of ,the ato cco一environment has hccn dctcrio resources reduced and the biologic diversity has been destroyed.  Creeping environmental problems, such as the construction of the highway U213,has some influ cncc on as cco一cnv}ronmcnt.

Key words:  Nature Rcscrvcs, drought, climate warming, wcather disaster, human activity, environmental protection

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