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Högberg, Mona NSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management
(author)
Quantification of effects of season and nitrogen supply on tree below-ground carbon transfer to ectomycorrhizal fungi and other soil organisms in a boreal pine forest
- Article/chapterEnglish2010
Publisher, publication year, extent ...
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2010-04-22
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Wiley,2010
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:umu-37330
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-37330URI
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https://doi.org/10.1111/j.1469-8137.2010.03274.xDOI
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https://res.slu.se/id/publ/61301URI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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P>The flux of carbon from tree photosynthesis through roots to ectomycorrhizal (ECM) fungi and other soil organisms is assumed to vary with season and with edaphic factors such as nitrogen availability, but these effects have not been quantified directly in the field. To address this deficiency, we conducted high temporal-resolution tracing of 13C from canopy photosynthesis to different groups of soil organisms in a young boreal Pinus sylvestris forest. There was a 500% higher below-ground allocation of plant C in the late (August) season compared with the early season (June). Labelled C was primarily found in fungal fatty acid biomarkers (and rarely in bacterial biomarkers), and in Collembola, but not in Acari and Enchytraeidae. The production of sporocarps of ECM fungi was totally dependent on allocation of recent photosynthate in the late season. There was no short-term (2 wk) effect of additions of N to the soil, but after 1 yr, there was a 60% reduction of below-ground C allocation to soil biota. Thus, organisms in forest soils, and their roles in ecosystem functions, appear highly sensitive to plant physiological responses to two major aspects of global change: changes in seasonal weather patterns and N eutrophication.
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Briones, Maria J. I.
(author)
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Keel, Sonja G.
(author)
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Metcalfe, DanielSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)50977
(author)
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Campbell, Catherine,1976-Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology(Swepub:slu)50713
(author)
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Midwood, Andrew J.
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Thornton, Barry
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Hurry, Vaughan,1960-Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology(Swepub:slu)102936
(author)
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Linder, SuneSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för sydsvensk skogsvetenskap,Southern Swedish Forest Research Centre(Swepub:slu)49789
(author)
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Näsholm, TorgnySwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)48242
(author)
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Högberg, PeterSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)49171
(author)
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Sveriges lantbruksuniversitetInstitutionen för skogens ekologi och skötsel
(creator_code:org_t)
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Sveriges lantbruksuniversitet
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In:New Phytologist: Wiley187:2, s. 485-4930028-646X1469-8137
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New Phytologist
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