Headwater streams included in the ForStreams study in southern Iceland.
Map: Helena Marta Stefánsdóttir and Sigmundur Brink, Agric. Univ. Iceland
(Source: www.forstreams.is)

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METADATA LANGUAGE, Icelandic / English
PROJECT COORDINATION, Agricultural University of Iceland (AUI)~~
University of Iceland (UI)~~
Institute of Freshwater Fisheries (IFF)~~
Iceland Forest Service (FS)~~
Soil Conservation Service (SCS)~~
Environment and Food Agency of Iceland (MATÍS)
DATE , …
SPATIAL EXTENT, Hekluskogar area (one of the two sites instrumented by the project)
ABSTRACT, In the Icelandic FORSTREAMS research project we study how a change in vegetation cover and terrestrial productivity affect water quality and aquatic ecosystems at a catchment scale. ~~ ~~
Prior work and main research questions (source: www.forstreams.is) :~~
The terrestrial ecologists active within the ForStreams project had been studying the effect of afforestation and revegetation on terrestrial productivity\, carbon cycling and terrestrial biodiversity. Their observation was that when eroded areas or partly eroded areas are afforestated (planted by trees) or revegetated (fertilizer only) much organic matter is stored in the volcanic soil\, at least for some decates. When making carbon balance for those areas no infromation was available on how much organic matter/carbon was leaving the ecosystem in disolved form (DOM). They therefore wanted to quantify the fluxes between the terrestrial and aquatic parts of the ecosystems they were studying. ~~
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The aquatic ecologists had observed that on a regional scale there seemed to be a strong linkage between vegetation cover of river catchments and the aquatic production\, length of food webs and population densities of fish (charr\, trout and salmon). This might indicate that the large-scale historic vegetation change descriped earler\, also had profound impacts on aquatic ecosystems in Iceland\, and also that large scale afforestation or revegetation activities could possibly also have large impacts on stream ecology in those areas. An interesting question remained to be answered: “Can we see simliar differences in stream ecology on a hectar scale (1st order catchments; 20-100 ltr/sec) as is seen in large rivers on a regional scale?” and “Has increased input of OM and DOM in afforestation and revegetation areas impact on stream ecosystems in Iceland?”
REFERENCES, www.forstreams.is ~~
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Ása L Aradóttir\, Guðmundur Halldórsson\, Kristín Svavarsdóttir & Ólafur Arnalds. (2011). Vistheimtarrannsóknir – yfirlit. In Ása L. Aradóttir & Guðmundur Halldórsson (Eds.)\, Vistheimt á Íslandi (pp. 112-127): Landbúnaðarháskóli Íslands og Landgræðsla ríkisins. ~~
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Michael Bredemeier\, Shabtai Cohen\, Douglas L. Godbold\, Elve Lode\, Viliam Pichler & Patrick Schleppi (Eds.). (2011). Forest management and the water cycle: An ecosystem-based approach. London\, New York: Springer.~~
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Gintar?  Medelyt?. (2010). Influences of forests on invertebrate communities in Icelandic streams. M.Sc. in limnology\, University of Iceland\, Reykjavik. ~~
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Gintare Medelyte\, Gísli Már Gíslason & Jón S. Ólafsson. (2010). Effects of afforestation on stream ecosystem structure. Rit Fræðaþings landbúnaðarins\, 7\, 192-193.~~
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Jón S. Ólafsson\, Edda S. Oddsdóttir & Bjarni D. Sigurdsson. (2007). SEMINAR: Effect of afforestation and revegetation in Iceland on stream ecosystems. Paper presented at the COST scientific meeting in Göttingen 16.10.2007. COST Action FP0601: Forest Management and the Water Cycle (FORMAN).~~
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Yannis Raftoyannis\, Michael Bredemeier\, Rasa Buozyte\, Norbert Lamersdorf\, Andreas Mavrogiakoumos\, Edda Oddsdóttir & Ivaylo Velichkov. (2011). Afforestation strategies with respect to forest-water interactions. In M. Bredemeier\, D.L. Godbold\, V. Pichler\, S. Cohen\, E. Lode & P. Schleppi (Eds.)\, Forest management and the water cycle. An ecosystem-based approach (pp. 225-246). Heidelberg\, London\, New York: Springer.~~
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Bjarni Diðrik Sigurðsson. (2007\, 17. október 2007). Áhrif landgræðslu og skógræktar á vötn og vatnsbúskap. Rannísblaðið\, 4\, 10.~~
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Bjarni Diðrik Sigurðsson. (2010). Áhrif gróðurs á vatnasviðum á efnasamsetningu straumvatns og aðra eðlisþætti: fyrstu niðurstöður SkógVatns. Rit Fræðaþings landbúnaðarins\, 7\, 176-181.~~
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Helena Marta Stefánsdóttir. (2010). Transport and decomposition of allochthonous litter in Icelandic headwater streams: Effects of forest cover. M.Sc. thesis\, Agricultural Univerisity of Iceland\, Hvanneyri\, Iceland.  ~~
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Helena Marta Stefánsdóttir\, Karólína Einarsdóttir\, Berglind Orradóttir\, Brynhildur Bjarnadóttir\, Edda S. Oddsdóttir\, Franklín Georgsson\, Freysteinn Sigurðsson\, Gintare Medelyte\, Gísli Már Gíslason\, Guðmundur Halldórsson\, Hlynur Óskarsson\, Hreinn Óskarsson\, Jón S. Ólafsson\, Julia Broska\, Nikolai Friberg\, Sigurður Guðjónsson & Bjarni Diðrik Sigurðsson. (2008). SkógVatn – Kynning á rannsóknarverkefni um áhrif skógræktar og landgræðslu á vatnavistkerfi. Rit Fræðaþings landbúnaðarins\, 5\, 515-519.~~
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Helena Marta Stefánsdóttir & Bjarni Diðrik Sigurðsson. (2013). Áhrif trjágróðurs á líf í lækjum við rætur Heklu. Rit Mógilsár\, 27\, 49-53.~~
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Helena Marta Stefánsdóttir\, Bjarni Diðrik Sigurðsson\, Brynhildur Bjarnadóttir\, Edda S. Oddsdóttir & Jón S.  Ólafsson. (2010). Áhrif gróðurs á vatnasviðum á magn lífræns efnis sem berst út í læki Rit Fræðaþings landbúnaðarins\, 7\, 182-191.
CONTACT, Bjarni D. Sigurdsson ~~ bjarni@lbhi.is
GIS LAYER, …
REPRESENTATION TYPE, …
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