地理科学进展 ›› 2000, Vol. 19 ›› Issue (2): 142-149.doi: 10.11820/dlkxjz.2000.02.007

• 论文 • 上一篇    下一篇

小浪底工程修建对黄河河口淤积影响

尤联元   

  1. 中国科学院地理研究所北京,100101
  • 收稿日期:1999-12-01 修回日期:2000-05-01 出版日期:2000-04-24 发布日期:2000-04-24
  • 作者简介:尤联元(1938-),男,研究员。1962年毕业于华东师范大学地理系,主要从事河流地貌、区域地貌等方面的研究,已发表论文数十篇。
  • 基金资助:

    国家自然科学基金资助项目(49871014)

Impact of Xiaolangdi Water Conservation Project on Deposition Reduction of the Huanghe River Estuary

YOU Liang yuan   

  1. Institute of Geography, CAS, Beijing 100101, China
  • Received:1999-12-01 Revised:2000-05-01 Online:2000-04-24 Published:2000-04-24

摘要: 本文在整理、分析黄河小浪底工程建成后 ,坝下游来水来沙条件变化的基础上 ,利用若干经验关系式 ,就小浪底工程修建后对黄河河口区清水沟流路的淤积特征和变化趋势进行了研究 ,得到了 :在小浪底水库初期蓄水拦沙运用阶段 ,淤积减少、河口砂嘴发展速度变缓 ;在后期正常调水调沙运用阶段 ,淤积又有所恢复 ,河口砂嘴发展加快的认识。

关键词: 河口砂嘴, 黄河河口, 小浪底工程, 淤积

Abstract: Xiaolangdi Water conservation project is the largest one in the Huanghe River. It changes the oncoming water and sediment process of the Lower Huanghe River and consequently, the deposition of the Huanghe River Estuary. Using obtained experimental formulas, this paper gets the following results:\;1. Comparing with the situation without Xiaolangdi project, deposition volume decreases at the first utilization stage, and then deposition volume is restored at the second utilization stage. Besides, the deposition volume is also depended on different discharge level of the Xiaolangdi reservoir.\;2. Global warming and human activities impact on deposition volume of the Huanghe River Estuary. If the water and soil conservation works are continuously increased with the normal speed, in addition to Xiaolangdi project, it is possible to make a good deposition volume reduction, which is better than that under only Xiaolangdi project.\;3. The river mouth spit is also related to oncoming water and sediment, consequently, to Xiaolangdi project. The Changing amplitude of the river mouth spit at the second utilization stage of Xiaolangdi project is faster than that of the first utilization stage.

Key words: deposition, Huanghe River Estuary, the river mouth spit, Xiaolongdi project

中图分类号: 

  • TV152