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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.海洋与湖沼,2000,31(3):288-294.
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长江入河口区水沙通量变化规律
沈焕庭1, 张超2, 茅志昌2
1.华东师范大学河口海岸国家重点实验室 海200062;2.华东师范大学河口海岸国家重点实验室 上海200062
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人河口区水、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,长江人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,其中细颗粒泥沙通量与水通量间基本上无相关性。
关键词:  长江  河口  径流通量  悬沙通量
DOI:10.11693/hyhz200003009009
分类号:
基金项目:国家自然科学基金资助项目,49736220号
附件
PATTERNS OF VARIATIONS IN THE WATER AND SEDIMENT FLUXES FROM THE CHANGJIANG RIVER TO THE ESTUARY
SHEN Huan-ting1, ZHANG Chao2, MAO Zhi-chang2
1.State Key Lab of Estuarine and Coastal Research, East China Normal University, Shanghai00062;2.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 ad 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.
Key words:  Changjiang River, Estuary, Water flux, Suspended sediment flux
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