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Exploring the National River with land use perspective-A GIS approach

机译:用土地使用视角探索国家河流 - GIS方法

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The land along which the river flows has been linked to the river since 1900s by several researchers. Very recently adding to these landscape and riverscape studies is the use of remote sensing and GIS for preparing the land use and land cover (LULC) map of the river basin and subsequently linking it to the water quality of river. After seeing our National River Ganga being untouched exploring such linkages, the present study was designed so as to investigate the effects of land use and land cover on the water quality of the river Ganga. For the purpose of the study the river Ganga stretch of Varanasi region was selected and LULC analysis for buffer radii of 1km along the bank was prepared using Arc GIS 10.2. Further parameters measuring the health of the river were linked to the LULC data obtained. The LULC data revealed that there are two predominant land use type in Varanasi viz. urban and agriculture and there are no forested areas near the river riparian zone. The water quality of the river Ganga near the agricultural land use was comparatively better than the stretches lined with built-up area. The source apportionment analysis conducted via principal component test revealed urban land as principal contributor of metals on the other hand agriculture land contributed organic matter into the river. The present research thus is a first and small initiative to direct the riverine research spatially suggesting its expansion over the entire river stretch so as to come up with different approach to rejuvenate the river Ganga.
机译:自1900年代以来,河流流动的土地被几个研究人员与河流相连。最近增加了这些景观和丽联的研究是利用遥感和GIS准备河流流域的土地使用和陆地覆盖(Lulc)地图,随后将其与水质的水质联系起来。在看到我们国家河甘河未被缓解的探索这种联系之后,本研究旨在调查土地利用和陆地覆盖对江河水质的影响。出于研究目的,选择了恒谷区域的甘甘河延伸,并使用弧GIS 10.2制备沿岸1km的缓冲半径的LULC分析。测量河流健康的进一步参数与获得的LULC数据相关联。 LULC数据显示,Varanasi viz中有两个主要的土地使用类型。城市和农业和河岸附近没有森林区域。农业用地附近的甘河附近的水质比横向于内置区域的延伸更好。通过主要成分试验进行的源分摊分析显示,城市土地作为金属的主要贡献者,另一方面农业土地将有机物质捐赠给河流。因此,目前的研究是第一和小型倡议,用于指导河流研究在空间上表明其在整个河流中的扩张,以提出不同的方法来恢复江河。

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