Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019804 |
Evaluating topography-based predictions of shallow lateral groundwater discharge zones for a boreal lake-stream system | |
Leach, J. A.1,2; Lidberg, W.2; Kuglerova, L.2,3; Peralta-Tapia, A.4; Agren, A.2; Laudon, H.2 | |
2017-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; Sweden |
英文摘要 | Groundwater discharge along streams exerts an important influence on biogeochemistry and thermal regimes of aquatic ecosystems. A common approach for predicting locations of shallow lateral groundwater discharge is to use digital elevation models (DEMs) combined with upslope contributing area algorithms. We evaluated a topography-based prediction of subsurface discharge zones along a 1500 m headwater stream reach using temperature and water isotope tracers. We deployed fiber-optic distributed temperature sensing instrumentation to monitor stream temperature at 0.25 m intervals along the reach. We also collected samples of stream water for the analysis of its water isotope composition at 50 m intervals on five occasions representing distinct streamflow conditions before, during, and after a major rain event. The combined tracer evaluation showed that topography-predicted locations of groundwater discharge were generally accurate; however, predicted magnitude of groundwater inflows estimated from upslope contributing area did not always agree with tracer estimates. At the catchment scale, lateral inflows were an important source of streamflow at base flow and peak flow during a major rain event; however, water from a headwater lake was the dominant water source during the event hydrograph recession. Overall, this study highlights potential utility and limitations of predicting locations and contributions of lateral groundwater discharge zones using topography-based approaches in humid boreal regions. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407895000013 |
WOS关键词 | SURFACE-WATER INTERACTIONS ; RIPARIAN BUFFER ZONES ; SOIL-WATER ; TEMPORAL VARIABILITY ; SPATIAL VARIABILITY ; DRAINAGE NETWORKS ; ORGANIC-CARBON ; FLOW PATHS ; WET-AREAS ; TEMPERATURE |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21462 |
专题 | 资源环境科学 |
作者单位 | 1.Simon Fraser Univ, Dept Geog, Burnaby, BC, Canada; 2.Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umea, Sweden; 3.Univ British Columbia, Dept Forest & Conservat Sci, Vancouver, BC, Canada; 4.Umea Univ, Dept Ecol & Environm Sci, Umea, Sweden |
推荐引用方式 GB/T 7714 | Leach, J. A.,Lidberg, W.,Kuglerova, L.,et al. Evaluating topography-based predictions of shallow lateral groundwater discharge zones for a boreal lake-stream system[J]. WATER RESOURCES RESEARCH,2017,53(7). |
APA | Leach, J. A.,Lidberg, W.,Kuglerova, L.,Peralta-Tapia, A.,Agren, A.,&Laudon, H..(2017).Evaluating topography-based predictions of shallow lateral groundwater discharge zones for a boreal lake-stream system.WATER RESOURCES RESEARCH,53(7). |
MLA | Leach, J. A.,et al."Evaluating topography-based predictions of shallow lateral groundwater discharge zones for a boreal lake-stream system".WATER RESOURCES RESEARCH 53.7(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论