自然资源学报 ›› 1997, Vol. 12 ›› Issue (2): 126-132.doi: 10.11849/zrzyxb.1997.02.005

• 论文 • 上一篇    下一篇

黄河中游水保措施对入黄干支流泥沙特性的影响:Ⅱ.减沙效益分析

倪晋仁1, 韩鹏1, 王光谦2, 张仁2   

  1. 1. 北京大学城市与环境学系, 北京 100871;
    2. 清华大学水利系, 北京 100084
  • 收稿日期:1996-04-03 修回日期:1996-07-11 出版日期:1997-06-25 发布日期:1997-06-25
  • 作者简介:倪晋仁,男,1962年9月生,山西山阴人。1989年在清华大学水利系获博士学位,现为北京大学城市与环 境学系教授、博士生导师。曾出版和完成专著?固液两相流基本理论及其最新应用%和?河流动力地貌学%,发表 学术论文60余篇,主持完成科研项目20余项。曾获中国青年科技奖、首届中国十大博士后奖、国家教委科技进 步奖等10余项奖励。
  • 基金资助:

    国家“八五”重点科技攻关项目,霍英东青年教师基金

VARIATIONS OF SEDIMENT CHARACTERISTICS IN THE MIDDLEREACH OF YELLOW RIVER WITH RESPECT TO REGIONAL WATER AND SOIL CONSERVATIONSⅡ.BENEFIT ANALYSIS OF REDUCING THE SEDIMENT

Ni Jinren1, Han Peng1, Wang Guangqian2, Zhang Ren    2   

  1. 1. Peking University, Beijing 100871;
    2. Tsinghua University, Beijing 100084
  • Received:1996-04-03 Revised:1996-07-11 Online:1997-06-25 Published:1997-06-25

摘要: 应用文献[1]关于不同地貌类型及不同水保措施条件下黄河干支流中泥沙粒径分布的研究结果,可以对相应条件下的减沙效益进行有效的分析。利用文献[1]模型,本文不仅探讨了在给定地貌类型条件下各类水保措施实施前后流域汇入黄河干支流的泥沙总量的变化,而且还在扣除降雨变化的影响之后,预测了各类组合条件下非均匀泥沙中减沙效果最佳的粒径级和相应粒径级泥沙的减沙量,预测结果得到了黄河干支流各站所有实测资料的验证。文中还简要讨论了人类活动(主要是开矿)对减沙效益的影响。

关键词: 黄河中游, 水土保持, 减沙效益

Abstract: Following the companion paper on the laws of sediment size distribution which account for the effects of the measures of water and soil conservation as well as the geomorphologic factors, this paper further deals with the sediment reduction effect of conservation measures in different catchments. Not only is the total reduction load inflowing into rivers (including tributaries and the main stream) due to the measures of water and soil conservation discussed,but also the grading portions of reduced sediment load are predicted and verified by the measured data. The grain size corresponding to the maximum reduction of sediment yield in the non uniform suspended sediment particles is accurately predicted by the model, which is of great importance in the benefit analysis of the measures of water and soil conservation in various catchments.

Key words: he middle reach of the Yellow River, water and soil conservation, benefits of reducing the sediment