地理学报

地理学报 ›› 2011, Vol. 66 ›› Issue (9): 1251-1260.doi: 10.11821/xb201109010

• 水文研究 • 上一篇    下一篇

三峡水库不同调度方式运行期洞庭湖区的水情响应

李景保1, 张照庆1, 欧朝敏2, 黎昔春3, 余果1, 廖小红3   

  1. 1. 湖南师范大学资源与环境科学学院, 长沙 410081;
    2. 国防科学技术大学信息系统与管理学院, 长沙 410073;
    3. 湖南水利水电勘测设计研究总院, 长沙 4100072
  • 收稿日期:2011-06-02 修回日期:2011-07-08 出版日期:2011-09-20 发布日期:2011-09-20
  • 作者简介:李景保(1951-), 男, 湖南桂阳人, 教授, 主要从事水文水资源和自然灾害教学与研究。E-mail: lijingbao1951@126.com
  • 基金资助:

    国家自然科学基金项目(41071067); 湖南省重点学科自然地理学建设项目

Responses of Water Regimes in Dongting Lake Area under Different Dispatching Modes during the Running Period of the Three Gorges Reservoir

LI Jingbao1, ZHANG Zhaoqing1, OU Chaomin2, LI Xichun3, YU Guo1, LIAO Xiaohong3   

  1. 1. College of Resources and Environment Science, Hunan Normal University, Changsha 410081, China;
    2. College of Information System and Management, National University of Defense Technology, Changsha 410073, China;
    3. Hunan Hydro & Power Design Institute, Changsha 410007, China
  • Received:2011-06-02 Revised:2011-07-08 Online:2011-09-20 Published:2011-09-20
  • Supported by:

    National Natural Science Foundation of China, No.41071067; Construction Program of the Key Discipline of the Physical Geography in Hunan Province

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摘要： 运用1951-2002 年典型年实测原型水文资料,对比分析2003-2010 年三峡水库不同调度方式运行期对洞庭湖区水情的影响,结果表明：(1) 影响时间为每年5 月25 日-6 月10 日、7 月1 日-8月31 日、9 月15 日-10 月31 日、12 月-次年4 月,其中枯期补水调度的影响不很敏感;(2) 预泄调度,平水年径流有所增加,平均水位、最高水位均有上升。丰、枯年影响期径流增加平均值40.25 ×108 m3;平均水位抬高平均值1.06 m,最高水位壅高平均值1.06 m;(3) 蓄洪调度,平水年洪水量稍有上涨,枯、丰年影响期洪水减少平均值444.02 × 108 m3,平均洪水位降低平均值2.64 m,最高洪水位降低平均值1.42 m;(4) 蓄水调度,除平水年影响期径流增加、水位稍有壅高外,枯、丰年影响期径流减少平均值185.27 × 108 m3,平均水位降低平均值3.13 m,最高水位降低平均值2.14 m;(5) 补水调度,平、丰年影响期径流减少平均值337.7 × 108 m3,平均水位降低平均值1.89 m,最高水位降低平均值2.39 m,但枯水年影响期径流量增加、平均水位与最高水位稍有抬高。关键词：长江三峡水库;调度方式;洞庭湖区;水情变化

关键词: 长江三峡水库, 调度方式, 洞庭湖区, 水情变化

Abstract: Based on the field-survey hydrological data in typical years, the effect of different dispatching modes during the running periods of the Three Gorges Reservoir on water regimes in Dongting Lake area is comparatively analyzed. The results are shown as follows. 1) The influence periods are from 25th May to 10th June, from 1st July to 31st August, from 15th September to 31st october and from December to the next April, among which the influence of the water-supplement dispatch in the dry season is not very sensitive. 2) During the period under the pre-discharge dispatch, the runoff slightly increases as well as both the average and highest water levels rise in the usual year, while in the wet and dry years, the average increase in the runoff is 40.25 × 108 m3 and the average rises of the average and highest water levels are both 1.06 m. 3) As for the flood-storage dispatch, the flood volume increases slightly in the usual years. In the dry and wet years, the flood volume, the average and highest flood water levels averagely reduce by 444.02 × 108 m3, 2.64 m and 1.42 m respectively. 4) Under the water-storage dispatch, the runoff slightly increases and the water level rises in a sort in the usual year. And in the dry and wet years, the average decreases in the runoff, the average water level and the highest water levels are respectively 185.27 × 108 m3, 3.13 m and 2.14 m. 5) During the period under the water-supplement dispatch, the runoff, the average water level and the highest water levels averagely decline by 337.7 × 108 m3, 1.89 m and 2.39 m respectively in the usual and wet yeas. However, in the dry year, the runoff increases, and the average and highest water levels slightly go up.

Key words: the Three Gorges Reservoir, dispatch modes, Dongting Lake area, the water regime change