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| DOI | 10.1038/s41561-022-00926-1 |
| A century of groundwater accumulation in Pakistan and northwest India | |
| MacAllister D.J.; Krishan G.; Basharat M.; Cuba D.; MacDonald A.M. | |
| 发表日期 | 2022 |
| ISSN | 1752-0894 |
| 起始页码 | 390 |
| 结束页码 | 396 |
| 卷号 | 15期号:5 |
| 英文摘要 | The groundwater systems of northwest India and central Pakistan are among the most heavily exploited in the world. However, recent, and well-documented, groundwater depletion has not been historically contextualized. Here, using a long-term observation-well dataset, we present a regional analysis of post-monsoon groundwater levels from 1900 to 2010. We show that human activity in the early twentieth century increased groundwater availability before large-scale exploitation began in the late twentieth century. Net groundwater accumulation in the twentieth century, calculated in areas with sufficient data, was at least 420 km3 at ~3.6 cm yr–1. The development of the region’s vast irrigation canal network, which increased groundwater recharge, played a defining role in twentieth-century groundwater accumulation. Between 1970 and 2000, groundwater levels stabilized because of the contrasting effects of above-average rainfall and the onset of tubewell development for irrigation. Due to a combination of low rainfall and increased tubewell development, approximately 70 km3 of groundwater was lost at ~2.8 cm yr–1 in the first decade of the twenty-first century. Our results demonstrate how human and climatic drivers have combined to drive historical groundwater trends. © 2022, Crown. |
| 语种 | 英语 |
| scopus关键词 | exploitation; groundwater; human activity; rainfall; recharge; spatiotemporal analysis; twentieth century; India; Pakistan |
| 来源期刊 | Nature Geoscience
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/262210 |
| 作者单位 | British Geological Survey, The Lyell Centre, Edinburgh, United Kingdom |
| 推荐引用方式 GB/T 7714 | MacAllister D.J.； Krishan G.； Basharat M.； Cuba D.； MacDonald A.M.. A century of groundwater accumulation in Pakistan and northwest India[J],2022,15(5). |
| APA | MacAllister D.J.； Krishan G.； Basharat M.； Cuba D.； MacDonald A.M..(2022).A century of groundwater accumulation in Pakistan and northwest India.Nature Geoscience,15(5). |
| MLA | MacAllister D.J.； Krishan G.； Basharat M.； Cuba D.； MacDonald A.M.."A century of groundwater accumulation in Pakistan and northwest India".Nature Geoscience 15.5(2022). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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