6. Effects of groundwater exchange on the hydrology and ecology of surface waters

Rosenberry, Donald O.

doi:10.5917/jagh1987.43.327

Cited by 28 publications

(25 citation statements)

References 66 publications

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“…Amoros and Bornette (2002) point out that GW-SW interactions can be very dynamic in the short term as a result of varying river and wetland water levels (Figure 3). In the long term, groundwater exchange directly affects the ecology of surface water by sustaining stream base flow and moderating water level fluctuations of groundwater-fed water bodies such as lakes and wetlands (Hayashi and Rosenberry, 2002). This is particularly the case in arid/semi-arid environments, where surface water regimes are vulnerable to rainfall variability and/or river regulation and abstraction activities.…”

Section: Gw-sw Interactions and Wetland Salinizationmentioning

confidence: 99%

“…Key groundwater processes Hayashi and Rosenberry (2002) provided an excellent description of the fundamental concepts of GW-SW interaction and the implications for ecology. To provide the necessary background, some of the information they present is summarized here in the context of arid/semiarid wetlands.…”

Section: Gw-sw Interactions and Wetland Salinizationmentioning

confidence: 99%

“…Recent developments in hydrological research have seen surface water and groundwater increasingly being treated as part of the same system (Winter, 2001;Hayashi and Rosenberry, 2002;Sophocleous, 2002). While recent ecological literature has identified the importance of multi-disciplinary studies (i.e.…”

Section: Introductionmentioning

confidence: 99%

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A review of groundwater–surface water interactions in arid/semi‐arid wetlands and the consequences of salinity for wetland ecology

2008

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In arid/semi-arid environments, where rainfall is seasonal, highly variable and significantly less than the evaporation rate, groundwater discharge can be a major component of the water and salt balance of a wetland, and hence a major determinant of wetland ecology. Under natural conditions, wetlands in arid/semi-arid zones occasionally experience periods of higher salinity as a consequence of the high evaporative conditions and the variability of inflows which provide dilution and flushing of the stored salt. However, due to the impacts of human population pressure and the associated changes in land use, surface water regulation, and water resource depletion, wetlands in arid/semi-arid environments are now often experiencing extended periods of high salinity. This article reviews the current knowledge of the role that groundwater-surface water (GW-SW) interactions play in the ecology of arid/semi-arid wetlands. The key findings of the review are as follows:1. GW-SW interactions in wetlands are highly dynamic, both temporally and spatially. Groundwater that is low in salinity has a beneficial impact on wetland ecology which can be diminished in dry periods when groundwater levels, and hence, inflows to wetlands are reduced or even cease. Conversely, if groundwater is saline, and inflows increase due to raised groundwater levels caused by factors such as land use change and river regulation, then this may have a detrimental impact on the ecology of a wetland and its surrounding areas. 2. GW-SW interactions in wetlands are mostly controlled by factors such as differences in head between the wetland surface water and groundwater, the local geomorphology of the wetland (in particular, the texture and chemistry of the wetland bed and banks), and the wetland and groundwater flow geometry. The GW-SW regime can be broadly classified into three types of flow regimes: (i) recharge-wetland loses surface water to the underlying aquifer; (ii) discharge-wetland gains water from the underlying aquifer; or (iii) flow-through-wetland gains water from the groundwater in some locations and loses it in others. However, it is important to note that individual wetlands may temporally change from one type to another depending on how the surface water levels in the wetland and the underlying groundwater levels change over time in response to climate, land use, and management. 3. The salinity in wetlands of arid/semi-arid environments will vary naturally due to high evaporative conditions, sporadic rainfall, groundwater inflows, and freshening after rains or floods. However, wetlands are often at particular risk of secondary salinity because their generally lower elevation in the landscape exposes them to increased saline groundwater inflows caused by rising water tables. Terminal wetlands are potentially at higher risk than flow-through systems as there is no salt removal mechanism. 4. Secondary salinity can impact on wetland biota through changes in both salinity and water regime, which result from the hydrological and hydrogeo...

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Section: Gw-sw Interactions and Wetland Salinizationmentioning

confidence: 99%

Section: Gw-sw Interactions and Wetland Salinizationmentioning

confidence: 99%

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A review of groundwater–surface water interactions in arid/semi‐arid wetlands and the consequences of salinity for wetland ecology

2008

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“…Winter and Rosenberry (1995) and Winter (1999) take a similar approach, focusing particularly on the hydraulic conditions related to various types of surface waters. Brunke and Gonser (1997) and Hayashi and Rosenberry (2002) provide a comprehensive overview with special emphasis on the ecology of surface waters. Rosenberry and LaBaugh (2008) as well as Kalbus et al (2006) give overviews of field techniques for estimating fluxes between groundwater and surface water at different scales.…”

Section: Coverage Of Groundwater-surface Water Interaction At the Regmentioning

confidence: 99%

Groundwater and Surface Water Interaction at the Regional-scale – A Review with Focus on Regional Integrated Models

Barthel

Banzhaf

2015

Water Resour Manage

208

124

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Scientists and practitioners agree that integrated water resource management is necessary, with an increasing need for research at the regional scale (10 3 to 10 5 km 2 ). At this scale interactions between environmental and human systems are fully developed and global change is linked to local actions. The groundwater-surface water interaction (GW-SW) is of particular interest. Herein we review the scientific journal literature and examine GW-SW at the regional scale. We briefly review all existing literature on GW-SW, then summarise its characteristics at different scales and identify specific challenges of the regional scale. We explore whether GW-SW should be treated differently at regional and local scales. Regional GW-SW is rarely examined in experimental field studies, which almost exclusively cover small areas. However, GW-SW is often integral to large scale coupled models. Thus, we collate information about existing models and their regional applications. Fully coupled, physics-based models have great potential to meet the technical challenges. However, limited data availability hampers the application of complex models at the regional scale and loosely coupled schemes are more widely applied. Many integrated modelling concepts have been published, but none have been applied in a wide range of settings. Thus, it is impossible to compare the performance of different approaches. Comparative analyses of existing regional scale integrated models in the context of different data availability and geographic conditions are needed. Unfortunately, peer-reviewed journal literature no longer provides a representative picture of the subject as models are becoming Btoo big to be published^or too pragmatic.

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“…The total groundwater inflow is usually lower, or shows 3 higher variation in western coastal rivers, due to steeper topography and glacial-alluvial valley deposits of 4 coarser sand and gravels of high permeability (Koestler & Brabrand, 2001). Geological heterogeneity will 5 produce a potential for local underwater sites of groundwater flux, with heterogeneous hyporheic substrates 6 (Hayashi & Rosenberry, 2002;Schmidt & Hahn 2012) that will determine microspatial influx sites (Heggenes et 7 al., 2010), thus creating spatial variability in habitat and spawning sites with regard to flow, temperature and 8 oxygen (Power et al, 1999). The hyporheic zone is an important component of the lotic ecosystem (Ward, 1989) 9 with variable flux of groundwater and surface water, creating high vertical heterogeneity with associated 10 ecological implications.…”

Section: Introductionmentioning

confidence: 99%

Survival of eggs of Atlantic salmon (Salmo salar) in a drawdown zone of a regulated river influenced by groundwater

Casas‐Mulet¹,

Alfredsen²,

Brabrand

et al. 2014

Hydrobiologia

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6. Effects of groundwater exchange on the hydrology and ecology of surface waters

Abstract: Groundwater exchange affects the ecology of surface waters by sustaining stream baseflow and stabilizing the water level of groundwater-fed lakes. It also provides stable-

Cited by 28 publications

References 66 publications

A review of groundwater–surface water interactions in arid/semi‐arid wetlands and the consequences of salinity for wetland ecology

A review of groundwater–surface water interactions in arid/semi‐arid wetlands and the consequences of salinity for wetland ecology

Groundwater and Surface Water Interaction at the Regional-scale – A Review with Focus on Regional Integrated Models

Survival of eggs of Atlantic salmon (Salmo salar) in a drawdown zone of a regulated river influenced by groundwater

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