Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.scitotenv.2016.08.095 |
Factors affecting the stable isotopes ratios in groundwater impacted by intense agricultural practices: A case study from the Nile Valley of Egypt | |
Mohammed, Abdel Mawgoud1,2; Krishnamurthy, R. V.1; Kehew, Alan E.1; Crossey, Laura J.3; Karlstrom, Karl K.3 | |
通讯作者 | Mohammed, Abdel Mawgoud |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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ISSN | 0048-9697 |
EISSN | 1879-1026 |
出版年 | 2016 |
卷号 | 573页码:707-715 |
英文摘要 | The monitoring of stable isotopes (delta O-18 and delta H-2) in water can provide a sensitive indicator of water loss by evaporation. We obtained water samples from surface water and groundwater from both the young and old alluvial plains in the central part of the Nile Valley of Egypt. Groundwater is the only source for irrigation in the old alluvial plains while both surface water (River Nile and irrigation canals) and groundwater are used in the young alluvial plain. Results showed different isotopic compositions between each group of samples and hydrologic connections between shallow groundwater and surface water in the young alluvial plain. The delta O-18 and delta H-2 relationship of the samples collected from the desert areas of the old alluvial plains below agricultural lands define an evaporation line with a slope of 4.5 and low deuterium excess of <-14 parts per thousand. These values can be attributed to return flow of irrigation water that has been subjected to evaporative processes, further amplified by intense agricultural practices. Average evaporative losses were estimated to be between 31% and 36%. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Egypt Nile Valley Aquifer System Water resources Stable isotope Evaporative loss |
类型 | Article |
语种 | 英语 |
国家 | USA ; Egypt |
收录类别 | SCI-E |
WOS记录号 | WOS:000390071000067 |
WOS关键词 | PRECIPITATION ; HYDROGEN ; OXYGEN ; WATER |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/196265 |
作者单位 | 1.Western Michigan Univ, Dept Geosci, Kalamazoo, MI 49008 USA; 2.South Valley Univ, Dept Geol, Qena 83523, Egypt; 3.Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM USA |
推荐引用方式 GB/T 7714 | Mohammed, Abdel Mawgoud,Krishnamurthy, R. V.,Kehew, Alan E.,et al. Factors affecting the stable isotopes ratios in groundwater impacted by intense agricultural practices: A case study from the Nile Valley of Egypt[J],2016,573:707-715. |
APA | Mohammed, Abdel Mawgoud,Krishnamurthy, R. V.,Kehew, Alan E.,Crossey, Laura J.,&Karlstrom, Karl K..(2016).Factors affecting the stable isotopes ratios in groundwater impacted by intense agricultural practices: A case study from the Nile Valley of Egypt.SCIENCE OF THE TOTAL ENVIRONMENT,573,707-715. |
MLA | Mohammed, Abdel Mawgoud,et al."Factors affecting the stable isotopes ratios in groundwater impacted by intense agricultural practices: A case study from the Nile Valley of Egypt".SCIENCE OF THE TOTAL ENVIRONMENT 573(2016):707-715. |
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