Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management
India, world’s largest groundwater user (250 billion m3 yr−1) has been reported to experience declining groundwater levels. However, the statistical significance of the decline has not been analyzed to separate human effects from natural variability. Contrary to common perception of widespread groun...
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| Định dạng: | BB |
| Ngôn ngữ: | eng |
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2020
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| Truy cập trực tuyến: | http://tailieuso.tlu.edu.vn/handle/DHTL/4494 |
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oai:localhost:DHTL-44942020-03-30T02:14:13Z Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management Shukla, S. Sishodia, R.P. Agricultural power subsidy Groundwater India, world’s largest groundwater user (250 billion m3 yr−1) has been reported to experience declining groundwater levels. However, the statistical significance of the decline has not been analyzed to separate human effects from natural variability. Contrary to common perception of widespread groundwater declines only 22–36% of the wells showed statistically significant declines. The use of well depth during dry well periods may slightly underestimate the number of declining wells (by 1%) and rate of decline. Increase in groundwater irrigated area combined with rainfall and power subsidy policy, were the main causative factors for the decline. Groundwater decline after implementation of free-electricity policy in 2004 confirmed the nexus between power subsidy and groundwater. These declines are likely to worsen due to future well drillings. https://www.sciencedirect.com/science/article/pii/S2214581816300891 2020-02-18T02:25:34Z 2020-02-18T02:25:34Z 2016 20181011094518.0 130605s2016 BB Journal of Hydrology: Regional StudiesVol.8 (Dec.2016), pp. 43-58 http://tailieuso.tlu.edu.vn/handle/DHTL/4494 eng |
| institution |
Trường Đại học Thủy Lợi |
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DSpace |
| language |
eng |
| topic |
Agricultural power subsidy Groundwater |
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Agricultural power subsidy Groundwater Shukla, S. Sishodia, R.P. Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management |
| description |
India, world’s largest groundwater user (250 billion m3 yr−1) has been reported to experience declining groundwater levels. However, the statistical significance of the decline has not been analyzed to separate human effects from natural variability. Contrary to common perception of widespread groundwater declines only 22–36% of the wells showed statistically significant declines. The use of well depth during dry well periods may slightly underestimate the number of declining wells (by 1%) and rate of decline. Increase in groundwater irrigated area combined with rainfall and power subsidy policy, were the main causative factors for the decline. Groundwater decline after implementation of free-electricity policy in 2004 confirmed the nexus between power subsidy and groundwater. These declines are likely to worsen due to future well drillings. |
| format |
BB |
| author |
Shukla, S. Sishodia, R.P. |
| author_facet |
Shukla, S. Sishodia, R.P. |
| author_sort |
Shukla, S. |
| title |
Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management |
| title_short |
Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management |
| title_full |
Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management |
| title_fullStr |
Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management |
| title_full_unstemmed |
Bi-decadal groundwater level trends in a semi-arid south indian region: Declines, causes and management |
| title_sort |
bi-decadal groundwater level trends in a semi-arid south indian region: declines, causes and management |
| publishDate |
2020 |
| url |
http://tailieuso.tlu.edu.vn/handle/DHTL/4494 |
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AT shuklas bidecadalgroundwaterleveltrendsinasemiaridsouthindianregiondeclinescausesandmanagement AT sishodiarp bidecadalgroundwaterleveltrendsinasemiaridsouthindianregiondeclinescausesandmanagement |
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