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首页> 外文期刊>Open Journal of Modern Hydrology >Morphometric Analysis of a Tropical Medium River System: A Case from Bharathapuzha River Southern India
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Morphometric Analysis of a Tropical Medium River System: A Case from Bharathapuzha River Southern India

机译：热带中游河流系统的形态分析：以印度南部巴拉塔普扎哈河为例

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摘要

Baseline morphometric information at a sub basin level is essential to develop appropriate strategy for sustainable, socially acceptable, ecologically benign and economically viable development of a river basin. The present study was carried out in one of the less studied Bharathapuzha river basin (BRB), the second longest river in the state of Kerala, India. The annual discharge of the river is 3.94 km3. Nevertheless the basin, which receives about 1828 mm of annual rainfall, in recent years has been facing dearth of water. We used GIS and RS tools to study the morphometric characteristics of the basin. The seventh order main river is formed by several lower order streams forming a dentritic flow pattern. Basin geology, slope and rainfall pattern in the basin determine the morphometric characteristics of the basin. The linear aspects of the basin including stream length ratio and bifurcation ratio indicate the role of relief in the basin while the areal ratios indicate the elongate nature of the basin.
机译：次流域水平的基线形态计量信息对于制定适当的策略，以实现流域的可持续，社会可接受，生态上良好和经济上可行的发展至关重要。本研究是在印度喀拉拉邦第二长的河流Bharathapuzha流域（BRB）之一中进行的。河流的年流量为3.94 km3。然而，近年来，该盆地每年的降雨量约为1828毫米，但该地区一直缺水。我们使用GIS和RS工具研究了盆地的形态特征。七阶主要河流由形成树突状流型的几条较低阶流组成。盆地的地质，坡度和降雨模式决定了盆地的形态特征。盆地的线性方面（包括流长比和分叉比）表明了浮雕在盆地中的作用，而面积比则表明了盆地的拉长性质。

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