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From Highs to Lows :
From Highs to Lows : Changes in Dissolved Organic Carbon in a Peatland Catchment and Lake Following Extreme Flow Events
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- Jennings, Eleanor (author)
- Dundalk Inst Technol, Ctr Freshwater & Environm Studies, Dundalk A91 K584, Ireland.
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- de Eyto, Elvira (author)
- Newport Res Facil Fisheries & Ecosystem Advisory, Marine Inst, Newport F28 PF65, Mayo, Ireland.
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- Moore, Tadhg (author)
- Dundalk Inst Technol, Ctr Freshwater & Environm Studies, Dundalk A91 K584, Ireland.;Newport Res Facil Fisheries & Ecosystem Advisory, Marine Inst, Newport F28 PF65, Mayo, Ireland.
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- Dillane, Mary (author)
- Newport Res Facil Fisheries & Ecosystem Advisory, Marine Inst, Newport F28 PF65, Mayo, Ireland.
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- Ryder, Elizabeth (author)
- Newport Res Facil Fisheries & Ecosystem Advisory, Marine Inst, Newport F28 PF65, Mayo, Ireland.
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- Allott, Norman (author)
- Trinity Coll Dublin, Ctr Environm, Dublin 2, Ireland.
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- Nic Aonghusa, Caitriona (author)
- Newport Res Facil Fisheries & Ecosystem Advisory, Marine Inst, Newport F28 PF65, Mayo, Ireland.
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- Rouen, Martin (author)
- Lakeland Instrumentat Ltd, Grange Over Sands LA11 7HA, England.
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- Poole, Russell (author)
- Newport Res Facil Fisheries & Ecosystem Advisory, Marine Inst, Newport F28 PF65, Mayo, Ireland.
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- Pierson, Donald C. (author)
- Uppsala universitet,Limnologi
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Dundalk Inst Technol, Ctr Freshwater & Environm Studies, Dundalk A91 K584, Ireland Newport Res Facil Fisheries & Ecosystem Advisory, Marine Inst, Newport F28 PF65, Mayo, Ireland. (creator_code:org_t)
- 2020-10-13
- 2020
- English.
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In: Water. - : MDPI AG. - 2073-4441. ; 12:10
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Abstract
Subject headings
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- The concentration of dissolved organic carbon (DOC) in freshwater catchments has implications for carbon availability in downstream lakes and for water supplies. The links between catchment hydrology and stream and lake DOC concentrations are, however, still not fully understood. Much of the literature has been from catchments with organo-mineral soils, with fewer studies from upland peat sites. We used high-frequency fluorescence data, a proxy for DOC, to investigate 1. the relationship between stream discharge and concentration in a blanket peat catchment during extreme high flows and 2. the relationship between inflow and in-lake estimated DOC concentrations. We found that for approximately two thirds of extreme events, there was a decrease in stream DOC concentration (i.e., a dilution) on the rising limb rather than an increase (i.e., a flushing out of DOC from terrestrial stores). Flushing events dominated only in summer when concentrations in the stream were also increasing. In comparison to the stream, concentrations in the downstream lake were less variable, and peaks and troughs were damped and lagged. Replicating these patterns and processes in DOC models would be critical in order to provide appropriate simulations in response to shorter- and longer-term changes in climate, and thus inform future catchment and lake management.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
Keyword
- blanket peat
- humic lakes
- dissolved organic carbon
- discharge–
- concentration relationships
- extreme events
Publication and Content Type
- ref (subject category)
- art (subject category)
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Water
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- By the author/editor
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Jennings, Eleano ...
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de Eyto, Elvira
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Moore, Tadhg
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Dillane, Mary
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Ryder, Elizabeth
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Allott, Norman
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show more...
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Nic Aonghusa, Ca ...
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Rouen, Martin
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Poole, Russell
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Pierson, Donald ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Oceanography Hyd ...
- Articles in the publication
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Water
- By the university
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Uppsala University