检索结果-南通市图书馆

Sediment transport under the presence and absence of emergent vegetation in a natural alluvial channel from Brazil

International Journal of Sediment Research 2016年第4期31卷 360-367页

作者： Yuri Jacques Agra Bezerra da Silva José Ramon Barros Cantalice Vijay P.Singh cinthia maria cordeiro atanázio cruz Wagner Luís da Silva Souza Soil Conservation Engineering Laboratory Rural Federal University of Pernambuco(UFRPE) Brazil Department of Biological and Agricultural Engineering Texas A & M University College Station

Studies regarding the influence of emergent vegetation on sediment transport are scarce and have mainly focused on flume *** fill this gap and also meet the international need,we aimed to evaluate the influence of emergent vegetation(Echinodorus macrophyllus) on sediment transport of Capibaribe River,*** and suspended sediment measurements were carried out using the US BLH 84 and US DH 48 samplers,*** of stem diameter,stem spacing and plant density were performed in conjunction with flow and sediment field *** on our results,0.45 m swas the threshold of mean flow velocity supported by *** under field *** value can be helpful for other rivers with gravel-bed river to armoured layer ratio(AR=D)/D=12.50)-natural conditions observed in Capibaribe River-or where the vegetation can provide positive effects,such as increase the bed stability,assist water restoration/rehabilitation and decrease water *** results can hopefully be used in engineering practice and ecosystem *** general,both the drag coefficient and drag force varied inversely and directly with the mean flow velocity and vegetation density,*** vegetation resistance force was inversely proportional to the bedload transport owing to the resistance caused by emergent *** finding was supported by the clear decoupling between nonvegetated and emergent vegetated conditions indicated by cluster *** study results provided a reasonable understanding of the interaction between emergent vegetation,water flow and sediment transport in the Capibaribe River.

关键词： Vegetation drag force Vegetation drag coefficient Plant Reynolds number Hierarchical cluster analysis and principal component analysis

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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

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

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：