彭纳尔至柯韦里运河跨流域调水环境影响评价

S. Rajesh, B. S. P. Rao, K. Niranjan
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摘要

由于其气候条件的显著差异,印度经常面临极端情况,例如一些地区下大雨,而另一些地区则很少下雨。遭受强降水的地区正面临洪水,导致大量的水流入大海。相反,没有充足降雨的地区正在遭受持续的干旱。为了克服这种分配不均,国家水资源发展局(NWDA)提出了通过河流之间的连接运河调水的建议。目前的研究仅限于penar和Cauvery两个河流流域。目前的研究局限于Pennar (somasila)到Cauvery (Grand Anicut),其长度为483公里。这项研究包括10公里。位于运河两侧的缓冲区,占地17,215.68平方英尺。公里。在这10,105.96平方公里中,拟议的指挥区位于Chittoor、Chengalpattu、North Arcott和South Arcott区。利用IRS-P6和LISS-III数据,绘制了岩石、地貌、排水、定居点和土地利用/土地覆盖的特征,以便更好地分析和分析环境影响。研究表明,目前的休耕面积为5340.14 km2,耕地面积为6307.98 km2,这超过了西北干旱区估计的受益面积。该运河将为4597个村庄和244个待修复村庄提供灌溉和饮用水。必须在运河上建造119个涵洞/运河桥梁和24个渡槽。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Inter-Basin Water Transfer Impact Assessment on Environment of Pennar to Cauvery Link Canal
Owing to its striking differences in its climatic conditions, India is frequently facing with extremities such as heavy rain fall in some regions where as some other regions endure little rainfall. The regions receiving heavy precipitation are facing floods resulting in huge amount of water runs into the sea. Contrarily, the regions, without adequate rainfall are suffering from persistent droughts. To overcome such disparities in the distribution of water, National Water Development Agency (NWDA) put a proposal to transfer water through link canals between rivers. The current study is limited to two river basins, Pennar and Cauvery. The present study is confined to Pennar (somasila) to Cauvery (Grand Anicut) whose length is 483 km. The study consist of10 km. buffer on either side of the canal and it occupies 17,215.68 sq. km. out of these 10,105.96 sq.km.is proposed command area which falls in Chittoor, Chengalpattu, North Arcott and South Arcott districts. Using IRS-P6, LISS-III data the characteristics of the rocks, lineaments, drainage, settlements and land use/land cover are mapped for better analysis and the environmental impact. The study indicated that Current fallow land of 5340.14 km 2 and 6307.98 km 2 of cropland will be brought under cultivation which is more than what is NWDA estimated land that will be benefited. The canal will provide water for irrigation and drinking to 4597 villages and 244 villages to be rehabilitated. 119 culverts/canal bridges and 24 aqueducts have to be constructed across the canal.
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