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首页> 外文期刊>International journal of water resources development >Groundwater depletion and water extraction cost: some evidence from South India
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Groundwater depletion and water extraction cost: some evidence from South India

机译：地下水枯竭和水开采成本：来自南印度的一些证据

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From less than 6 million ha in 1950-51, groundwater-irrigated area increased to about 45 million ha in 2010-11, which is over 62% of India's net irrigated area. But the rapid development of groundwater has brought many negative outcomes for farmers. An attempt is made in this study to find out the losers and gainers of groundwater irrigation using survey data on 234 dug-well- and bore-well-owning farmers selected from two regions having different agro-economic settings in the Pudukkottai District of Tamil Nadu, a state in South India. The study shows that the dug-well- and bore-well-owning farmers had to incur a huge additional cost on account of modifications of wells in order to keep up with the falling water level. The modification cost alone accounted for about 33-48% of the real capital of bore-wells. The pumping cost of water is found to be higher for bore-wells fitted with submersible pump-sets as compared to deep bore-wells fitted with submersible pump-sets.
机译：地下水灌溉面积从1950-51年的不到600万公顷增加到2010-11年度的约4500万公顷，占印度净灌溉面积的62％以上。但是地下水的迅速发展给农民带来了许多负面影响。这项研究试图利用从泰米尔纳德邦Pudukkottai区两个农业经济背景不同的地区选出的234个拥有挖井和井口的农民的调查数据来找出地下水灌溉的损失者和受益者，印度南部的一个州。研究表明，拥有挖坑式和井筒式的农民由于为了适应水位下降而对水井进行改造，因此不得不承担巨额的额外费用。仅改造成本就占井眼实际资本的33-48％。与配备潜水泵组的深井井相比，配备潜水泵组的井眼水的泵送成本更高。

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