The contribution of groundwater discharge to the overall water budget of two typical Boreal lakes in Alberta/Canada estimated from a radon mass balance

Schmidt, Axel; Gibson, J. J.; Santos, Isaac R.; Schubert, Michael; Tattrie, K.; Weiß, Holger

doi:10.5194/hess-14-79-2010

Cited by 100 publications

(62 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Changes in both surface water and groundwater affect local and regional recharge and discharge to the wetlands and shallow lakes common in the area . Schmidt et al (2010) showed that a combination of stable isotope and radon mass balance approaches provides information on water flow path partitioning that is useful for evaluating surface-groundwater connectivity (i.e., connectivity of lakes and rivers to underlying aquifers).…”

Section: Oil Sands Examplementioning

confidence: 99%

Impacts and prognosis of natural resource development on water and wetlands in Canada’s boreal zone

et al. 2015

View full text Add to dashboard Cite

Industrial development within Canada's boreal zone has increased in recent decades. Forest management activities, pulp and paper operations, electric power generation, mining, conventional oil and gas extraction, nonconventional oil sand development, and peat mining occur throughout the boreal zone with varying impacts on water resources. We review impacts of these industries on surface water, groundwater, and wetlands recognizing that heterogeneity in the dominance of different hydrologic processes (i.e., precipitation, evapotranspiration, groundwater recharge, and runoff generation) across the boreal zone influences the degree of impacts on water resources. Through the application of best management practices, forest certification programs, and science-based guidelines, timber, pulp and paper, and peat industries have reduced their impacts on water resources, although uncertainties remain about long-term recovery following disturbance. Hydroelectric power developments have moved toward reducing reservoir size and creating more natural flow regimes, although impacts of aging infrastructure and dam decommissioning is largely unknown. Mineral and metal mining industries have improved regulation and practices, but the legacy of abandoned mines across the boreal zone still presents an ongoing risk to water resources. Oil and gas industries, including non-conventional resources such as oil sands, is one of the largest industrial users of water and, while significant progress has been made in reducing water use, more work is needed to ensure the protection of water resources. All industries contribute to atmospheric deposition of pollutants that may eventually be released to downstream waters. Although most industrial sectors strive to improve their environmental performance with regards to water resources, disruptions to natural flow regimes and risks of degraded water quality exist at local to regional scales in the boreal zone. Addressing the emerging challenge of managing the expanding, intensifying, and cumulative effects of industries in conjunction with other stressors, such as climate change and atmospheric pollution, across the landscape will aid in preserving Canada's rich endowment of water resources.Key words: natural resources, development, hydrology, biogeochemistry, cumulative effects, water quality, water quantity. Résumé :Le développement industriel dans la zone boréale canadienne s'est accru au cours des récentes décades. Les activités en aménagement forestier, les opérations dans les pâtes et papiers, la génération de pouvoir électrique, les mines, l'extraction de l'huile et du gaz conventionnel, le développement non conventionnel des sables bitumineux ainsi que le prélèvement de la tourbe s'effectuent sur l'ensemble de la zone boréale avec divers impacts sur les ressources hydriques. Les auteurs passent en revue les impacts de ces industries sur l'eau de surface, l'eau souterraine et les terrains humides, tout en reconnaissant que l'hétérogénéité de la dominance des différents processus ...

show abstract

Section: Oil Sands Examplementioning

confidence: 99%

Impacts and prognosis of natural resource development on water and wetlands in Canada’s boreal zone

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Radon ( 222 Rn) is an excellent natural groundwater tracer because of its conservative nature and the high concentrations in groundwater relative to surface water. 222 Rn has been used successfully to trace groundwater inputs in lakes (Schmidt et al 2010), rivers (Cook et al 2006), estuaries (Charette and Buesseler 2004;Santos et al 2012a), coral reefs (Cardenas et al 2010), and the coastal ocean (Burnett et al 2006). The large range of systems where 222 Rn has been used to trace groundwater highlights the utility of this tracer.…”

mentioning

confidence: 99%

Groundwater‐derived dissolved inorganic and organic carbon exports from a mangrove tidal creek: The missing mangrove carbon sink?

Maher

Santos

Golsby-Smith

et al. 2013

Limnology & Oceanography

Self Cite

310

241

View full text Add to dashboard Cite

A majority of the global net primary production of mangroves is unaccounted for by current carbon budgets. It has been hypothesized that this ''missing carbon'' is exported as dissolved inorganic carbon (DIC) from subsurface respiration and groundwater (or pore-water) exchange driven by tidal pumping. We tested this hypothesis by measuring concentrations and d 13 C values of DIC, dissolved organic carbon (DOC), and particulate organic carbon (POC), along with radon ( 222 Rn, a natural submarine groundwater discharge tracer), in a tidal creek in Moreton Bay, Australia. Concentrations and d 13 C values displayed consistent tidal variations, and mirrored the trend in 222 Rn in summer and winter. DIC and DOC were exported from, and POC was imported to, the mangroves during all tidal cycles. The exported DOC had a similar d 13 C value in summer and winter (, 230%). The exported d 13 C-DIC showed no difference between summer and winter and had a d 13 C value slightly more enriched (, 222.5%) than the exported DOC. The imported POC had differing values in summer (, 216%) and winter (, 222%), reflecting a combination of seagrass and estuarine particulate organic matter (POM) in summer and most likely a dominance of estuarine POM in winter. A coupled 222 Rn and carbon model showed that 93-99% of the DIC and 89-92% of the DOC exports were driven by groundwater advection. DIC export averaged 3 g C m 22 d 21 and was an order of magnitude higher than DOC export, and similar to global estimates of the mangrove missing carbon (i.e., , 1.9-2.7 g C m 22 d 21 ).

show abstract

“…[48]) or freshwater environments (e.g. [49]), submarine groundwater discharge (e.g. [50][51][52]) or groundwater contamination (e.g.…”

Section: Tracing Applicationsmentioning

confidence: 99%

Radon applications in geosciences – Progress & perspectives

Barbosa

Donner

Steinitz

2015

Eur. Phys. J. Spec. Top.

View full text Add to dashboard Cite

Abstract. During the last decades, the radioactive noble gas radon has found a variety of geoscientific applications, ranging from its utilization as a potential earthquake precursor and proxy of tectonic stress over its specific role in volcanic environments to a wide range of applications as a tracer in marine and hydrological settings. This topical issue summarizes the current state of research as exemplified by some original research articles covering the aforementioned as well as other closely related aspects and points to some important future directions of radon application in geosciences. This editorial provides a more detailed overview of the contents of this volume, a brief summary of the rationale underlying the diverse applications, and outlines some important perspectives.

show abstract

The contribution of groundwater discharge to the overall water budget of two typical Boreal lakes in Alberta/Canada estimated from a radon mass balance

Cited by 100 publications

References 30 publications

Impacts and prognosis of natural resource development on water and wetlands in Canada’s boreal zone

Impacts and prognosis of natural resource development on water and wetlands in Canada’s boreal zone

Groundwater‐derived dissolved inorganic and organic carbon exports from a mangrove tidal creek: The missing mangrove carbon sink?

Radon applications in geosciences – Progress & perspectives

Contact Info

Product

Resources

About