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长江入河口区水沙通量变化规律
引用本文:沈焕庭,张超,茅志昌.长江入河口区水沙通量变化规律[J].海洋与湖沼,2000,31(3):288-294.
作者姓名:沈焕庭  张超  茅志昌
作者单位:1. 华东师范大学河口海岸国家重点实验室,上海,200062
2. 沈阳辽宁省河务局,110003
基金项目:国家自然科学基金资助项目!49736220
摘    要:根据大通站1950-1985年的水、沙实测资料,运用统计分析方法研究长江入河口区水、沙通量的季节性变化、年际变化以及水、沙通量之间的关系。结果表明,长江入河口区的水沙通量有明显的季节性变化,其中沙通量的变化更为显著;丰水年很少连续出现,枯水年有75%以连续两年的形式出现;多沙年的出现形式有1年出现一次的,也有2-3年出现的,少沙年基本上以连续2-3年的形式出现;水沙通量间的相关性较差,其中细颗粒泥

关 键 词:长江  河口  径流通量  悬沙通量  水沙通量
收稿时间:1998/8/23 0:00:00
修稿时间:1999/12/18 0:00:00

PATTERNS OF VARIATIONS IN THE WATER AND SEDIMENT FLUXES FROM THE CHANGJIANG RIVER TO THE ESTUARY
SHEN Huan-ting,ZHANG Chao and MAO Zhi-chang.PATTERNS OF VARIATIONS IN THE WATER AND SEDIMENT FLUXES FROM THE CHANGJIANG RIVER TO THE ESTUARY[J].Oceanologia Et Limnologia Sinica,2000,31(3):288-294.
Authors:SHEN Huan-ting  ZHANG Chao and MAO Zhi-chang
Affiliation:State Key Lab of Estuarine and Coastal Research, East China Normal University, Shanghai00062;State Key Lab of Estuarine and Coastal Research, East China Normal University, Shanghai200062;State Key Lab of Estuarine and Coastal Research, East China Normal University, Shanghai200062
Abstract:According to the field measurements of runoff and sediment at the Datong hydrological station in the period from 1950 to 1985, a statistical approach is applied to study the seasonal and yearly variations in water and sediment fluxes to the estUary and their relationship. The result shows that: (1) an apparent seasonal variation of water and sediment fluxes exists, especially the suspended sediment flux; (2) the flood years seldom occur in succession and 75% of the dry years takes place every two years, (3) the recurrence interval of high sediment years happens once a year or 2-3 years while that of low sediment years basically every three years, (4) there is a relatively poor correlation between water and sediment fluxes. Moreover, there is almost no correlation between fine grained sediment flux and water flux.
Keywords:Changjiang River Estuary Water flux Suspended sediment flux
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