检索结果-南通市图书馆

Types of saltwater intrusion of the Changjiang Estuary

Science China Chemistry 2001年第S1期44卷 150-157页

作者：茅志昌沈焕庭 JamesT.Liu D.eisma State Key Laboratory of Estuarine and Coastal Research Institute of Estuarine and Coastal Research East China Normal University Shanghai China Institute of Marine Geology and Chemistry Sun Yat-sen University Kaohsiung China Netherlands Institute for Sea Research Den Burg-Texel Netherlands

The Changjiang Estuary is characterized by multi-order bifurcations, unsteady submerged sandbars, mid-channel sandbars, creeks and riffles. The following four types of saltwater intrusion are found: (1) direct intrusion from the sea; (2) intrusion during tidal flooding; (3) intrusion from tidal flats overflow; and (4) salt water coming upstream through other waterways. These result in a complicated temporal and spatial salinity distribution. A high chlorinity concentration zone exists from the Liuhekou to the Sidongkou along the South Branch. The salinity during neap tide or ordinary tide is higher than during spring tide.

关键词： Changjiang Estuary salt water intrusion salinity variations chlorinity freshwater resources.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

DEPOSITIONAL CHARACTER AND SHORELINE CHANGES OF THE NANDUJIANG DELTA,HAINAN ISLAND,CHINA

引用

Journal of Geographical Sciences 1994年第Z2期4卷 173-182页

作者： Wang Baocan zhang Keqi(East China Normal University, Shanghai 200062 China People’s Republic of China)D. eisma(Netherlands Instibe for Sea Research, Texel, The Netherlands)

The Nandujiang delta dates from at least 3000 yr ago and probably was fomred earlier during the Holocene. The present delta is built up of plain, channels, lagoos, spits, coastal barriers and *** currents are directed approximately east-west. The dominant waves come from NNE and are locally generated. Erosion occurs mainly on the east side of the delta. As the delta was growing outward into deeper water, the influence of marine processes increased and the delta changed from a river-dominated delta. Former branches were closed by littoral drift. The recent reduction in sediment suppy from the river, caused by the construction of a reservoir, has led to erosion of the coast. Three coastal sections of the delta are discussed in detail. Erosion mainly taks place on the foreshore and spits and barriers migrae inland covering former lagoon deposits. Measures to reduce further erosion and landward migration of the coastline are needed.

关键词： coastline change river mouth bar depositional system,Nandujiang River delta

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：