Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019875 |
Dynamic hyporheic and riparian flow path geometry through base flow recession in two headwater mountain stream corridors | |
Ward, Adam S.1; Schmadel, Noah M.1; Wondzell, Steven M.2; Gooseff, Michael N.3; Singha, Kamini4 | |
2017-05-01 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The hydrologic connectivity between streams and their valley bottoms (stream corridor) is a critical determinant of their ecological function. Ecological functions are known to be spatially and temporally variable, but spatial dimensions of the problem are not easily quantified and thus they are usually overlooked. To estimate the spatial patterns of connectivity, and how connectivity varies with changes in discharge, we developed the hyporheic potential model. We used the model to interpret a series of solute tracer injections in two headwater mountain streams with contrasting valley bottom morphologies to estimate connectivity in the stream corridor. The distributions of flow path origination locations and the lengths of hyporheic flow paths appear to vary with base flow recession, even in cases where transport timescales are apparently unchanged. The modeled distribution of origination locations further allowed us to define a spatial analog to the temporal window of detection associated with solute tracer studies, and enables assessment of connectivity dynamics between streams and their corridors. Altogether, the reduced complexity hyporheic potential model provides an easy way to anticipate the spatial distribution and origination locations of hyporheic flow paths from a basic understanding of the valley bottom characteristics and solute transport timescales. Plain Language Summary The manuscript details a simple method to assess the spatial connectivity of streams and their riparian zones. While the timescales of exchange in the river corridor have been broadly studied, the complimentary spatial dimension (i.e., the geometry of exchange flowpaths) remains largely unknown. The major challenge in assessing the spatial dimensions of exchange is the limited information available in the subsurface. Here, we develop a reduced complexity model of valley bottom transport to overcome these information limitations. With this model, relatively simple field site characterization and solute tracer data are combined to assess the spatial distribution of downwelling along a headwater mountain stream. We validate the model with a numerical experiment, and demonstrate its application in two watersheds of contrasting geology, repeated through baseflow recession. |
英文关键词 | solute transport solute tracer riparian stream corridor hyporheic transit time river corridor |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403712100028 |
WOS关键词 | SUBSURFACE WATER EXCHANGE ; HYDROLOGICAL CONNECTIVITY ; GROUNDWATER EXCHANGE ; RIVER CORRIDOR ; FREEDOM SPACE ; SURFACE ; ZONE ; MANAGEMENT ; TRANSPORT ; MODELS |
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/21503 |
专题 | 资源环境科学 |
作者单位 | 1.Indiana Univ, Sch Publ & Environm Affairs, Bloomington, IN 47405 USA; 2.US Forest Serv, Pacific Northwest Res Stn, USDA, Corvallis, OR USA; 3.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 4.Colorado Sch Mines, Hydrol Sci & Engn Program, Golden, CO 80401 USA |
推荐引用方式 GB/T 7714 | Ward, Adam S.,Schmadel, Noah M.,Wondzell, Steven M.,et al. Dynamic hyporheic and riparian flow path geometry through base flow recession in two headwater mountain stream corridors[J]. WATER RESOURCES RESEARCH,2017,53(5). |
APA | Ward, Adam S.,Schmadel, Noah M.,Wondzell, Steven M.,Gooseff, Michael N.,&Singha, Kamini.(2017).Dynamic hyporheic and riparian flow path geometry through base flow recession in two headwater mountain stream corridors.WATER RESOURCES RESEARCH,53(5). |
MLA | Ward, Adam S.,et al."Dynamic hyporheic and riparian flow path geometry through base flow recession in two headwater mountain stream corridors".WATER RESOURCES RESEARCH 53.5(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