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冰川冻土 ›› 2020, Vol. 42 ›› Issue (3): 965-973.doi: 10.7522/j.issn.1000-0240.2020.0070

• 冰冻圈水文与水资源 • 上一篇    下一篇

渭河上游水利水保措施的减水减沙效应分析

黄晨璐1(), 陈军武2(), 黄维东3,4, 孙超3, 郭西峰3   

  1. 1.西北大学, 陕西 西安 710127
    2.甘肃省水利水电学校, 甘肃 兰州 730050
    3.甘肃省水文水资源局, 甘肃 兰州 730000
    4.甘肃农业大学, 甘肃 兰州 730070
  • 收稿日期:2019-06-01 修回日期:2020-04-13 出版日期:2020-10-31 发布日期:2020-12-08
  • 通讯作者: 陈军武 E-mail:374785751@qq.com;869139603@qq.com
  • 作者简介:黄晨璐(1993 - ), 女, 甘肃榆中人, 2015年在南阳师范学院获学士学位, 现为西北大学在读博士研究生, 从事自然地理与水土保持研究工作. E-mail: 374785751@qq.com
  • 基金资助:
    国家自然科学基金面上项目(41771084);水利部公益性行业科研专项经费项目(201301083)

Analysis of water and sediment reducing effects of water conservation measures in the upstream of the Weihe River

Chenlu HUANG1(), Junwu CHEN2(), Weidong HUANG3,4, Chao SUN3, Xifeng GUO3   

  1. 1.Northwest University, Xi’an 710127, China
    2.Gansu Province Water Conservancy and Hydropower School, Lanzhou 730050, China
    3.Hydrology and Water Resources Bureau of Gansu Province, Lanzhou 730000, China
    4.Gansu Agricultural University, Lanzhou 730070, China
  • Received:2019-06-01 Revised:2020-04-13 Online:2020-10-31 Published:2020-12-08
  • Contact: Junwu CHEN E-mail:374785751@qq.com;869139603@qq.com

摘要:

依据渭河上游实测水文资料和水利水保措施统计数据, 分析了流域水文要素和水利水保措施的变化规律。根据双累积曲线、 有序聚类、 Lee-Heghinan、 滑动T检验等方法, 结合流域内水利水保措施的变化, 将研究期分为基准期(1956 - 1981年)和措施期(1982 - 2016年)。采用水量平衡法, 分析还原了河流天然径流量和输沙量, 评价了水利工程取用耗水的减水减沙作用; 分别建立拟合了基准期和措施期年径流量、 年输沙量与年降水量的相关公式, 分析计算了措施期的减水减沙效应。结果表明: 基准期主要为水利工程减水减沙, 分别减水6.8%, 减沙3.9%; 措施期综合减水效应42.9%, 综合减沙效应76.5%, 水保措施减水减沙效应大于水利工程减水减沙效应, 综合减沙效应大于综合减水效应。

关键词: 降水量, 径流量, 输沙量, 水利水保措施, 减水减沙效应, 渭河流域

Abstract:

Based on the measured hydrological data and the statistical data of water conservancy and water conservation measures in the upper reaches of the Weihe River, the variations of hydrological factors and water conservancy and water conservation measures in the basin are analyzed. According to the double cumulative curve, ordered clustering, Lee-Heghinan, sliding T test and other methods, the study period was divided into base period (1956 - 1981) and measure period (1982 - 2016) according to the changes of water conservancy and water conservation measures in the basin. By using the water balance method, the runoff and sediment runoff of rivers are analyzed and restored, and water and sediment reducing effects of taking water on water conservancy project are evaluated. The correlation formulas of annual runoff, annual sediment runoff and annual precipitation in the base period and the measure period are established, respectively, and the effect of water and sediment reducing in the measure period is analyzed and calculated. The basic period is mainly water and sediment reducing for water conservancy projects, water and sediment are reduced by 6.8% and 3.9%, respectively; for the measure period the comprehensive water reducing effects are 42.9%, and the comprehensive sediment reducing effects are 76.5%, the water-reducing and sediment-reducing effects of water conservation measures is larger than that of water conservancy projects, and the comprehensive sediment-reducing effect is much larger than the comprehensive water-reducing effect. Analyzing and studying the influence of human activities on runoff and sediment in the river basins can provide important basis for future regional water resources management, comprehensive river basin management and ecological environment protection.

Key words: precipitation, runoff, sediment runoff, water conservation measures, water and sediment reducing effects, Weihe River basin

中图分类号: 

  • S157.2