调水工程； 生态恢复； 植被覆盖度； 环境评价模型； 民勤绿洲；石羊河," /> 调水工程； 生态恢复； 植被覆盖度； 环境评价模型； 民勤绿洲；石羊河,"/> water diversion project, ,ecological regeneration, ,vegetation coverage, ,environment evaluating model, ,Minqin Oasis, ,Shiyanghe River,"/> 石羊河调水10 a来民勤绿洲生态脆弱性变化
干旱区研究

干旱区研究 ›› 2014, Vol. 31 ›› Issue (1): 157-162.

• 生态与环境 • 上一篇    下一篇

石羊河调水10 a来民勤绿洲生态脆弱性变化

蒋友严1,2,韩涛2，王有恒2 ,黄进3,刘伟刚1   

  1.  
    1. 中国气象局兰州干旱气象研究所，甘肃省干旱气候变化与减灾重点实验室，中国气象局干旱气候变化与减灾重点开放
    实验室，甘肃 兰州 730020；2. 西北区域气候中心，甘肃 兰州 730020；3.甘肃省气象局减灾处, 甘肃 兰州 730020
  • 收稿日期:2012-11-20 修回日期:2013-02-01 出版日期:2014-01-15 发布日期:2014-02-28
  • 作者简介:蒋友严（1981-），男，工程师，硕士研究生，主要从事遥感监测和分析工作.E-mail：jiangyouyan1981@163.com
  • 基金资助:

    甘肃省气象局科研项目（2008-08）；甘肃省自然科学基金（3ZS051-A25-010）；科技部农业科技成果转化资金项目（2011GB24160005）资助

Change of Ecological Vulnerability in the Minqin Oasis since Diversion of the Shiyang River Basin in 10 Years

JIANG You-yan, HAN Tao , WANG You-heng, HUANG Jin, LIU Wei-gang   

  1. 1.Institute of Arid Meteorology, China Meteorological Administration, Gansu Provincial Key Laboratory of Arid Climate Change
    and Disaster Reduction, Key Open Laboratory of Arid Climate Change and Disaster Reduction China Meteorological Administration, 
    Lanzhou 730020, China;   2.Northwest Regional Climate Center, Lanzhou 730020, China; 3.Disaster Reduction Secretariat,
    Gansu Provincial Meteorological Bureau, Lanzhou 730020, China
  • Received:2012-11-20 Revised:2013-02-01 Published:2014-01-15 Online:2014-02-28

PDF (PC)

1007

赞

被引次数

12

摘要： 为解决民勤绿洲的水资源问题，恢复民勤生态与环境，2000年9月，甘肃省开始建设景电二期向民勤调水工程，提灌黄河水输入民勤红崖山水库，向民勤调水。基于RS和GIS技术，借鉴和利用国内有关理论和研究方法，根据民勤绿洲的实际，建立环境评价模型。利用TM遥感卫星资料，对民勤调水前2000年和调水后2010年绿洲生态脆弱性变化进行评价，结果显示：极度脆弱区域为荒漠区，高度脆弱区域大部分分布在荒漠和绿洲的交界地带，中度和轻度脆弱区域为绿洲区；综合评价指数增加的区域为绿洲的南部地区和下游北部地区，综合评价指数减少的区域主要集中在绿洲的中部地区。2000年7月民勤绿洲面积占整个民勤区域面积的8.93%，2010年7月增大到11.98%，反映了石羊河调水10 a来，民勤绿洲恢复效果明显。

关键词: font-size: 10.5pt, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, 调水工程； 生态恢复； 植被覆盖度； 环境评价模型； 民勤绿洲；石羊河')">mso-bidi-language: AR-SA">调水工程； 生态恢复； 植被覆盖度； 环境评价模型； 民勤绿洲；石羊河

Abstract: The Jingdian Hydropower Project in Gansu Province, built in September 2009, lifts water from the Yellow River to the Hongyashan Reservoir every year so as to relieve the shortage of water resources in the Minqin Oasis in Gansu Province. In this study, the RS and GIS means were used to develop a model for evaluating the ecological environment by referring to both the domestic and foreign studies, and the TM images were used to assess the ecological vulnerability in the Minqin Oasis before the diversion in 2000 and after it since 2010. The results revealed that the ecological environment was extremely vulnerable in the deserts, vulnerable in the desertoasis ecotone, and moderately and slightly vulnerable in the oasis. The comprehensive evaluation index was increased in the south of the oasis and northern part in the lower reaches, but decreased in the central area of the oasis. The area of the Minqin Oasis was enlarged from 8.93% of the total Minqin area in 2000 to 11.98% in 2010, which revealed that the benefits of diversion for regenerating the ecology in Minqin Oasis in recent 10 years were significant.

Key words: water diversion project')">water diversion project,  , ecological regeneration,  , vegetation coverage,  , environment evaluating model,  , Minqin Oasis,  , Shiyanghe River