Linking hyporheic flow and nitrogen cycling near the Willamette River — a large river in Oregon, USA

Hinkle, Stephen R.; Duff, John H.; Triska, Frank J.; Laenen, Antonius; Gates, Edward B.; Bencala, Kenneth E.; Wentz, Dennis A.; Silva, S.R.

doi:10.1016/s0022-1694(01)00335-3

Cited by 127 publications

(98 citation statements)

References 47 publications

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“…On a smaller scale, the differences in concentrations of environmental tracers between groundwater and surface water can be used to identify and delineate zones of groundwater discharge or recharge, provided that the differences are sufficiently large. Stable hydrogen and oxygen isotopes are widely used, because groundwater is generally less enriched in deuterium and 18 O than surface water (Coplen et al, 2000;Hinkle et al, 2001;Yehdeghoa et al, 1997). Numerous other geochemical and isotopic tracers have been used to study interactions between groundwater and surface water, including alkalinity (Rodgers et al, 2004), electrical conductivity (Harvey et al, 1997), or isotopes of radon (Cook et al, 2003;Wu et al, 2004), chlorofluorocarbons (Cook et al, 2003), strontium (Negrel et al, 2003), and radium (Kraemer, 2005).…”

Section: Environmental Tracer Methodsmentioning

confidence: 99%

Measuring methods for groundwater – surface water interactions: a review

Kalbus

Reinstorf

Schirmer

2006

Hydrol. Earth Syst. Sci.

636

349

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Abstract.Interactions between groundwater and surface water play a fundamental role in the functioning of riparian ecosystems. In the context of sustainable river basin management it is crucial to understand and quantify exchange processes between groundwater and surface water. Numerous well-known methods exist for parameter estimation and process identification in aquifers and surface waters. Only in recent years has the transition zone become a subject of major research interest; thus, the need has evolved for appropriate methods applicable in this zone. This article provides an overview of the methods that are currently applied and described in the literature for estimating fluxes at the groundwater -surface water interface. Considerations for choosing appropriate methods are given including spatial and temporal scales, uncertainties, and limitations in application. It is concluded that a multi-scale approach combining multiple measuring methods may considerably constrain estimates of fluxes between groundwater and surface water.

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Section: Environmental Tracer Methodsmentioning

confidence: 99%

Measuring methods for groundwater – surface water interactions: a review

Kalbus

Reinstorf

Schirmer

2006

Hydrol. Earth Syst. Sci.

636

349

View full text Add to dashboard Cite

show abstract

“…This distinction between groundwater and river water sources has been used to study hyporheic flow along the Willamette River (Hinkle et al 2001, Fernald et al 2006. Hinkle et al (2001) 18 O, which was the range found in this study. With these source differences, they were able to estimate the degree and extent of hyporheic flow around the Willamette and Santiam River junction.…”

mentioning

confidence: 93%

Willamette River Basin surface water isoscape (δ¹⁸O and δ²H): temporal changes of source water within the river

et al. 2012

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Citation: Brooks, J. R., P. J. Wigington, Jr., D. L. Phillips, R. Comeleo, and R. Coulombe. 2012 H) of river and stream water within the southern Willamette River Basin in western Oregon over two years. Within this basin, eighty-four percent of the isotopic variation in small tributary streams was explained by the mean elevation of the catchments, whereas seasonal variation was minimal. However, water within the Willamette River had distinct isotopic seasonal patterns that likely occurred because of changes in the mean elevation of source water for the river. River isotopic values were lowest during summer low flow and highest during February/March when snow accumulated in the mountains. We estimated that the mean elevation of the source water for the Willamette River shifted over 700 m, seasonally. During winter when rain occurred in the valley and snow accumulated in the mountains, the river reflected a mixture of low mountains and valley bottom precipitation. During the dry Mediterranean summer, 60-80% of the river water came from the snow zone above 1200 m, which is only 12% of the land area and accounts for 15.6% of the annual precipitation within the Willamette Basin. This high elevation area contains the High Cascades geological region with highly permeable bedrock that sustains latesummer baseflow compared to the Western Cascades with low permeable bedrock. Reliance on highelevation water during summer low flow highlights the vulnerability of this system to influences of a warming climate, where snowpacks in the Cascade Mountains are predicted to decrease in the future.

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“…The role of this ecotone has been documented for the carbon cycle and organic matter processing Leichtfried, 1987, 1988;Findlay et al, 1993;Findlay and Sobczak, 1996), for nitrogen recycling (Dahm et al, 1987;Jones and Holmes, 1996;Hinkle et al, 2001;Lefebvre et al, 2004Lefebvre et al, , 2005Birgand et al, 2007), and phosphorous river budget (Mulholland et al, 1997;Vervier et al, 2009). Recent works have highlighted the diversity of microbial communities, both for bacteria (Iribar et al, 2008;Lowell et al, 2009) and fungi (Ba¨rlocher et al, 2008;Cornut et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

The role of organisms in hyporheic processes: gaps in current knowledge, needs for future research and applications

Marmonier

Archambaud²,

Belaidi

et al. 2012

Ann. Limnol. - Int. J. Lim.

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-Fifty years after the hyporheic zone was first defined (Orghidan, 1959), there are still gaps in the knowledge regarding the role of biodiversity in hyporheic processes. First, some methodological questions remained unanswered regarding the interactions between biodiversity and physical processes, both for the study of habitat characteristics and interactions at different scales. Furthermore, many questions remain to be addressed to help inform our understanding of invertebrate community dynamics, especially regarding the trophic niches of organisms, the functional groups present within sediment, and their temporal changes. Understanding microbial community dynamics would require investigations about their relationship with the physical characteristics of the sediment, their diversity, their relationship with metabolic pathways, their interactions with invertebrates, and their response to environmental stress. Another fundamental research question is that of the importance of the hyporheic zone in the global metabolism of the river, which must be explored in relation to organic matter recycling, the effects of disturbances, and the degradation of contaminants. Finally, the application of this knowledge requires the development of methods for the estimation of hydrological exchanges, especially for the management of sediment clogging, the optimization of self-purification, and the integration of climate change in environmental policies. The development of descriptors of hyporheic *Corresponding author: pierre.marmonier@univ-lyon1.frArticle published by EDP Sciences Ann. Limnol. -Int. J. Lim. 48 (2012) [253][254][255][256][257][258][259][260][261][262][263][264][265][266] Available online at: Ó EDP Sciences, 2012 www.limnology-journal.org DOI: 10.1051/limn/2012009 zone health and of new metrology is also crucial to include specific targets in water policies for the long-term management of the system and a clear evaluation of restoration strategies.

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Linking hyporheic flow and nitrogen cycling near the Willamette River — a large river in Oregon, USA

Cited by 127 publications

References 47 publications

Measuring methods for groundwater – surface water interactions: a review

Measuring methods for groundwater – surface water interactions: a review

Willamette River Basin surface water isoscape (δ¹⁸O and δ²H): temporal changes of source water within the river

The role of organisms in hyporheic processes: gaps in current knowledge, needs for future research and applications

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Linking hyporheic flow and nitrogen cycling near the Willamette River — a large river in Oregon, USA

Cited by 127 publications

References 47 publications

Measuring methods for groundwater – surface water interactions: a review

Measuring methods for groundwater – surface water interactions: a review

Willamette River Basin surface water isoscape (δ18O and δ2H): temporal changes of source water within the river

The role of organisms in hyporheic processes: gaps in current knowledge, needs for future research and applications

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Product

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Willamette River Basin surface water isoscape (δ¹⁸O and δ²H): temporal changes of source water within the river