长江流域资源与环境 >> 2014, Vol. 23 >> Issue (04): 490-.doi: 10.11870/cjlyzyyhj201404007

• 自然资源 • 上一篇    下一篇

三峡工程对下荆江径流变化影响分析

燕然然,蔡晓斌, 王学雷, 朱龙腾   

  1. (1.中国科学院测量与地球物理研究所,湖北 武汉 430077; 2.中国科学院大学,北京 100049;  3.环境与灾害监测评估湖北省重点实验室, 湖北 武汉 430077; 4.鄱阳湖湿地与流域研究教育部重点实验室,江西 南昌 330022; 5.中国科学院地理科学与资源研究所,北京 100010
  • 出版日期:2014-04-20

INFLUENCE OF THE THREE GORGES PROJECT ON THE RUNOFF OF LOWER JINGJIANG RIVER

YAN Ranran1,2, CAI Xiaobin1,3,4, WANG Xuelei1,3, ZHU Longteng2,5   

  1. (1.Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China;2.University of Chinese Academy of Sciences,Beijing 100049,China;3.Key Laboratory for Environment and Disaster Monitoring Evaluation,Wuhan 430077,China; 4.Key Laboratory of Poyang Lake Wetland and Watershed Research,Minsistry of Education,Nanchang 330022,China;5.Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Science,Beijing 100101,China
  • Online:2014-04-20

摘要:

下荆江作为长江最不稳定的江段之一,三峡工程的运行必然会对该江段的水文过程产生深远影响。以监利水文站日均流量数据为基础,研究分析了1983~2012年近30 a来下荆江年径流量、各月月均流量的变化趋势。结合三峡工程的阶段性蓄水,以蓄水前流量的自然波动幅度为基础,定量分析了三峡工程对下荆江径流变化的影响程度。趋势性分析结果显示,近30 a来下荆江年径流量呈波动性变化,无显著趋势。1~3月月均流量有极显著的增加趋势,10月份有极显著的下降趋势。从三峡工程蓄水前后各月份月均流量的绝对变化量来看,10、7和8月的变化量最大,但结合三峡工程蓄水前各月月均流量的自然波动幅度,相对变化率最大的月份为1、2和10月,其相对变化量均超过其自然波动幅度的1.5倍。对于相对变化量较大的月份可能产生的潜在影响亟需进一步的深入研究

Abstract:

Lower Jingjiang, located in the middle reaches of the Yangtze River, is one of the most unstable sections of the Yangtze River. Due to the particularity of Lower Jingjiang, the operation of the Three Gorges Project (TGP) will inevitably have a great impact on the hydrological processes of this section. Based on the daily flow data of Jianli gaging station, the annual runoff and monthly flow trends of Lower Jingjiang River were analyzed from 1983 to 2012. The runoff change of the Lower Jingjiang River caused by the TGP was extinguished from the natural fluctuation with the consideration of the operation of the project. The results showed that, the annual runoff of Lower Jingjiang was dominated by the fluctuation process and had no significant trend in the past 30 years. There were significant increasing trends of monthly flows of January, February and March, and a significant decreasing trend in October. After the impoundment of TGP, the monthly flow of the first five months in a year all increased, while that of other months decreased. The absolute change amount of monthly flow in October, July and August were the three largest in a year. The three largest months showing increasing flow were February, March and January. The relative change rate (RCR) was introduced to eliminate the natural fluctuation pattern by using the ratio between the monthly flows changes after the project operation and the standard differences of the monthly flows without TGP. The RCRs of January, February and October (all >1.5) were the greatest in a year. Although the absolute change amount of July and August were the second and third largest in a year, their RCR value was less than 1, meaning that the flow changes of these two months were less than the natural fluctuation range. Based on the previous analysis, we can know that the operation of the TGP had the most significant effect on the flow of low water period. The TGP would probably affect the shipping and drought in Lower Jingjiang River in autumn and winter. It is necessary to assess the potential impact of the flow variation upon the watersediment processes and morphological change of the river section

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 李 娜,许有鹏, 陈 爽. 苏州城市化进程对降雨特征影响分析[J]. 长江流域资源与环境, 2006, 15(3): 335 -339 .
[2] 孙维侠, 赵永存, 黄 标, 廖菁菁, 王志刚, 王洪杰. 长三角典型地区土壤环境中Se的空间变异特征及其与人类健康的关系[J]. 长江流域资源与环境, 2008, 17(1): 113 .
[3] 胡大伟,卞新民,许 泉. 基于ANN的土壤重金属分布和污染评价研究[J]. 长江流域资源与环境, 2006, 15(4): 475 -479 .
[4] 张洁| 张志斌| 孙欣欣. 云南省矿产资源开发利用中的主要环境问题[J]. 长江流域资源与环境, 2006, 15(Sup1): 61 -65 .
[5] 邹小兵,曾 婷,TRINA MACKIE,肖尚友,夏之宁. 嘉陵江下游江段春季浮游藻类特征及污染现状[J]. 长江流域资源与环境, 2008, 17(4): 612 .
[6] 黄 峰 魏 浪 李 磊 朱 伟. 乌江干流中上游水电梯级开发水温累积效应[J]. 长江流域资源与环境, 2009, 18(4): 337 .
[7] 胡鸿兴, 张岩岩, 何伟, 田蓉, 钟鑫, 韩世松, 李思思, 王俊杰陈文方, 杨阳, 陈侈, 邓晗, 文英, 崔雅婷, 李茜,  王璇, 彭菁菁, 高鑫, 唐义. 神农架大九湖泥炭藓沼泽湿地对镉(Ⅱ)、铜(Ⅱ)、铅(Ⅱ)、锌(Ⅱ)的净化模拟[J]. 长江流域资源与环境, 2009, 18(11): 1050 .
[8] 蔡海生, 肖复明, 张学玲. 基于生态足迹变化的鄱阳湖自然保护区生态补偿定量分析[J]. 长江流域资源与环境, 2010, 19(06): 623 .
[9] 王月容, 周金星, 周志翔, 孙启祥. 洞庭湖退田还湖区不同土地利用方式对土壤养分库的影响[J]. 长江流域资源与环境, 2010, 19(06): 634 .
[10] 段金荣, 张红燕, 刘凯, 徐东坡, 张敏莹, 施炜纲. 湖泊的宜渔性评价研究——以蠡湖为例[J]. 长江流域资源与环境, 2010, 19(06): 666 .