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Root respiration data and minirhizotron observations conflict with root turnover estimates from sequential soil coring
Departments of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Forest Products and Markets, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Departments of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
2007 (English)In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 22, no 4, 299-303 p.Article in journal (Refereed) Published
Abstract [en]

The turnover of fine roots in northern coniferous forests has conventionally been assumed to be rapid, in line with results from sequential coring in the late 1970s in a Swedish Scots pine stand (SWECON project) where a rate of 7.4 year(-1) was estimated. New quantifications of the root respiration in other stands motivated a recalculation of the SWECON data; an indirect estimation of the turnover rate was much slower, about 2.1 year(-1). As a consequence, fine-root production is considered to be much lower than in previous estimates. Furthermore, direct observations of Norway spruce fine roots (< 1 mm) from minirhizotrons in Sweden, including a site close to the SWECON site, indicated a slower estimate, with fine-root turnover rate of 0.9 year

Place, publisher, year, edition, pages
2007. Vol. 22, no 4, 299-303 p.
Keyword [en]
Carbon budget, longevity, minirhizotron, respiration, soil cores, turnover
National Category
Ecology
Identifiers
URN: urn:nbn:se:hig:diva-2100DOI: 10.1080/02827580701346353ISI: 000249281500004OAI: oai:DiVA.org:hig-2100DiVA: diva2:118762
Available from: 2008-06-21 Created: 2008-06-21 Last updated: 2016-10-18Bibliographically approved

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