地理科学 ›› 2011, Vol. 31 ›› Issue (10): 1261-1265.doi: 10.13249/j.cnki.sgs.2011.010.1261

• 论文 • 上一篇    下一篇

黄河源区鄂陵湖现代湖盆形态研究

沈德福1,2,3, 李世杰1, 陈炜1, 姜永见1,2, 聂欣1   

  1. 1. 湖泊与环境国家重点实验室, 中国科学院南京地理与湖泊研究所, 江苏 南京 210008;
    2. 中国科学院研究生院, 北京100049;
    3. 安徽科技学院, 安徽 滁州 233100
  • 收稿日期:2010-11-03 修回日期:2011-04-07 出版日期:1997-10-20 发布日期:1997-10-20
  • 通讯作者: 李世杰,研究员,博士生导师。E-mail: shjli@niglas.ac.cn E-mail:shjli@niglas.ac.cn
  • 基金资助:
    中国科学院重要方向项目(KZCX2-YW-338);国家科技基础性工作专项(2006FY110600)资助

The Basin Features of El’ing Lake in the Head Area of Yellow River,Qinghai-Tibetan Plateau

SHEN De-fu1,2,3, LI Shi-jie1, CHEN Wei1, JIANG Yong-jian1,2, NIE Xin 1   

  1. 1. State Key Laboratory of Lakes and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Anhui Science and Technology University, Chuzhou, Anhui 233100, China
  • Received:2010-11-03 Revised:2011-04-07 Online:1997-10-20 Published:1997-10-20

摘要: 鄂陵湖是黄河源区最大的淡水湖。通过基于GPS-RTK的技术定位以及测深仪的水下地形测量,结合相关历史资料和遥感数据分析,应用湖沼学理论,对鄂陵湖的湖盆形态进行定量化研究。结果发现鄂陵湖最大水深33.2 m,平均水深15.55 m,湖长37.49 km,湖面最大宽度32.3 km;平均宽度16.76 km,岸线长226.3 km,湖面面积628.47 km2,湖泊容积97.76×108m3,湖盆形态为接近抛物线体形式的构造断陷湖,而不具备第四纪冰川侵蚀湖盆的地貌特征。研究结果可以对黄河源区的生态环境变化和黄河源区的水量管理提供基础信息。

Abstract: El’ing Lake is located in northeastern Qinghai-Tibetan Plateau,and it is the largest freshwater lake with the surface elevation of 4 272.5m a.s.l in the headwater area of Yellow River.Because of its unique natu-ral and geographical conditions,the El’ing lake is considered to be a ideal study object for the paleo-environ-ment,regional ecological systems and modern processes of the lake.In recent decades,the Yellow River water resources decreased,the number and area of the lakes in the Yellow River source region dropped,which made water resources and the ecological environment in the Yellow River upper reaches became the focus of atten-tion.Through GPS-RTK technology and submerged topographic survey instruments,adding to relevant histor-ical data and remote sensing data analysis,the basin features of El’ing Lake had been investigated from 2008 to 2009.The results show that the lake area is 628.47 km2,the maximum water depth of the lake is 33.2 m,and its average water depth is 15.55 m.The maximum length and width of the lake is 37.49 km and 32.3 km separately,and the lake’s shoreline is 226.3 km.The total volume of water storage is up to 97.76×108m3,which is an important freshwater resource for the regional ecosystem and the Yellow River.The shape of the lake bottom is quite flat,close to a parabolic body with the analysis of data.Subject to the new tectonic move-ment,El’ing Lake is a tectonic rift lake,but its formation time is inconclusive and it needs further study.

中图分类号: 

  • P931.7