长江科学院院报 ›› 2011, Vol. 28 ›› Issue (4): 1-4.

• 江湖泥沙与治理 •    下一篇

大理河流域治理前后径流泥沙变化研究

魏 霞1,2 ，李勋贵2 ，李占斌3   

  1. 1. 中国科学院 寒区旱区环境与工程研究所，兰州 730000 ； 2. 兰州大学 资源环境学院，兰州 730000 ； 3. 西安理工大学 水利水电学院，西安 710
  • 出版日期:2011-04-01 发布日期:2012-11-01

Runoff and Sediment Variation Before and After Dalihe River Basin Regulation

WEI Xia1,2 , LI Xun-gui2 , LI Zhan-bin3   

  1. 1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences,  Lanzhou 730000, China ； 2.College of Earth and Environmental Science, Lanzhou University,  Lanzhou 730000, China ； 3.Institute of Water Resources and Hydro  Electric Engineering,  Xi ' an University of Technology, Xi ' an 710048,China
  • Online:2011-04-01 Published:2012-11-01

摘要： 以大理河流域 1960-2002 年长系列降雨径流泥沙资料为基础，以 1969 年为分界年，视1969 年以前为天然状态， 1969 年以后为治理状态，将该流域按照本区的地貌类型、下垫面及水文站网布设情况等划分为青阳岔水文站以上区域、李家河水文站以上区域和绥德水文站以上 3 个区域。对各区域分别建立无治理措施年份的汛期降雨量和汛期径流量、汛期降雨量和汛期泥沙量、汛期径流量和汛期泥沙量经验关系式，用经验关系式的计算值和相应实测值进行比较，来分析实施水土保持措施对大理河流域径流泥沙变化的影响。

关键词: 黄土高原 , 大理河 , 径流泥沙变化

Abstract:  Based on the long data sequences of precipitation, runoff and sediment from 1960 to 2002 in the Dalihe River Basin, the year of 1969 was regarded as a delimitation year, before which the watershed was considered as in its natural state, otherwise harnessing state. According to the geomorphic types, the underlying surface and hydrological station network, the basin was divided into three districts: the respective upper reaches of Qingyangcha Station, Lijiahe Station and Suide Station. The empirical equations in flood season between rainfall and runoff, rainfall and sediment, and runoff and sediment before the delimitation year of each district were established. The calculated values from the empirical equations were compared with the measured values to analyze the influence of human activities on the variation of runoff and sediment in the Dalihe River Basin.

Key words: the Loess Plateau  ,   Dalihe River  ,  variation of runoff and sediment

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