Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1007/s10040-019-01967-4 |
| Variation in groundwater recharge and surface-water quality due to climatic extremes in semi-arid mountainous watersheds | |
| Newman, Connor P.1,2 | |
| 通讯作者 | Newman, Connor P. |
| 来源期刊 | HYDROGEOLOGY JOURNAL
 |
| ISSN | 1431-2174 |
| EISSN | 1435-0157 |
| 出版年 | 2019 |
| 卷号 | 27期号:5页码:1627-1643 |
| 英文摘要 | Climate change has the potential to substantially impact groundwater recharge, groundwater/surface-water dynamics, and surface-water quality. Changes in climate could be manifested as decreasing overall snowpack or an increase in the variability of snowpack year-to-year, and may affect wildfire occurrence and severity. Observed climatic extremes, including abnormal seasonal snowfall (both drought and extreme precipitation) and wildfires, have occurred in recent years in a semi-arid region of the Great Basin in the western United States. These climatic extremes have caused focused groundwater recharge following winters with elevated snowfall (2011 and 2017). Groundwater recharge calculated using the water-table fluctuation method, for periods following the elevated snowfall, was more than 10 times greater than previous studies in the basin that utilized distributed recharge calculation methods. Caution must be exercised when using results of these calculations in subsequent analyses such as groundwater flow modeling, to assure that all required assumptions are met and that calculated recharge rates are spatially applicable. Although water-quality changes due to the elevated snowfall were not evident in the surface-water data, several geochemical constituents (Ba, Ca, K, Mg, Na, pH, and specific conductance) indicated statistically significant concentration differences following a downstream wildfire in the watershed (representing the climatic extreme of drought). Both recharge calculations and statistical evaluations of water chemistry were completed using an easily modified Python script, which could be utilized by water managers to aid in water-resource planning under potentially variable future climatic conditions. |
| 英文关键词 | Climate change Groundwater hydraulics Groundwater recharge USA Water table fluctuations |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000475982700007 |
| WOS关键词 | GEOCHEMISTRY ; BASINS |
| WOS类目 | Geosciences, Multidisciplinary ; Water Resources |
| WOS研究方向 | Geology ; Water Resources |
| 来源机构 | United States Geological Survey |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/216181 |
| 作者单位 | 1.Nevada Div Environm Protect, 901 S Stewart St,Suite 4001, Carson City, NV 89701 USA; 2.Denver Fed Ctr, USGS, Colorado Water Sci Ctr, Bldg 53,MS 415, Denver, CO 80225 USA |
| 推荐引用方式 GB/T 7714 | Newman, Connor P.. Variation in groundwater recharge and surface-water quality due to climatic extremes in semi-arid mountainous watersheds[J]. United States Geological Survey,2019,27(5):1627-1643. |
| APA | Newman, Connor P..(2019).Variation in groundwater recharge and surface-water quality due to climatic extremes in semi-arid mountainous watersheds.HYDROGEOLOGY JOURNAL,27(5),1627-1643. |
| MLA | Newman, Connor P.."Variation in groundwater recharge and surface-water quality due to climatic extremes in semi-arid mountainous watersheds".HYDROGEOLOGY JOURNAL 27.5(2019):1627-1643. |
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