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首页> 外文期刊>International Journal of Geomatics and Geosciences >Prioritization of miniwatersheds based on Morphometric Analysis using Remote Sensing and GIS techniques in a draught prone Bargur – Mathur subwatersheds, Ponnaiyar River basin, India
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Prioritization of miniwatersheds based on Morphometric Analysis using Remote Sensing and GIS techniques in a draught prone Bargur – Mathur subwatersheds, Ponnaiyar River basin, India

机译:在印度Ponnaiyar流域易生Bargur – Mathur子集水区中,基于形态分析的遥感和GIS技术对小型集水区进行优先排序

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Texture ratio of drainage basins range between 2.59 to 15.46, and the miniwatersheds are classified as moderate to fine drainage texture excepting 4 miniwatersheds which are classified as fine to very fine drainage texture. The stream frequency of Bargur and Mathur subwatersheds ranges between 2.36 to 7.28. The stream frequency is low in most of the subwatersheds indicating low relief and high permeability, however, four subwatersheds show high stream frequency, indicative of high relief and low infiltration capacity of bedrock. The relief ratio ranges from 0.03 to 0.07. The bifurcation ratio range from 0.43 to 8.45, with a mean bifurcation ratio of 3.327 for entire basin, indicates that all miniwatersheds fall under normal basin category.? The elongation ratio of miniwatersheds varies from 0.23 to 0.58, indicates miniwatersheds fall under oval and elongated pattern. Present study demonstrates the competence of remote sensing data coupled with GIS techniques in morphometric analysis. Based on the quantitative morphometric analysis, the study area has been classified into highly suitable, moderately suitable and poorly suitable for groundwater prospects.
机译:流域的质地比范围在2.59至15.46之间,小流域被划分为中度至精细排水纹理,但4个小流域则被划分为精细至极细排水结构。 Bargur和Mathur子流域的水流频率在2.36至7.28之间。大多数子流域的水流频率低,表明浮雕低,渗透率高,但是,四个子流域的水流频率高,表明基岩的高浮雕和低渗透能力。释放比在0.03至0.07的范围内。分叉比率范围为0.43至8.45,整个流域的平均分叉比率为3.327,表明所有小流域都属于正常流域类别。小流域的伸长率在0.23至0.58之间变化,表明小流域呈椭圆形和细长形。本研究证明了结合GIS技术进行形态计量分析的遥感数据的能力。根据定量形态计量学分析,研究区域被划分为高度适合,中等适合和不适合地下水勘探。

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