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Factors influencing...
Factors influencing limit values for pine needle litter decomposition : A synthesis for boreal and temperate pine forest systems
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- Berg, Björn (författare)
- Dipartimento biologia strutturale e funzionale, Complesso universitario di Monte S. Angelo, Napoli, Italy; Department of forest ecology, University of Helsinki, Helsinki, Finland,Centre for ecology and hydrology, Bangor
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- Davey, M. P. (författare)
- Department of plant sciences, University of Cambridge, Cambridge, United Kingdom
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- De Marco, A. (författare)
- Dipartimento biologia strutturale e funzionale, Complesso universitario di Monte S. Angelo, Napoli, Italy
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- Emmett, B (författare)
- Centre for ecology and hydrology, Bangor
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- Faituri, M. (författare)
- Department of soils and water, Omar AlMukhtar university, Elbeida, Libyan Arab Jamahiriya
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- Hobbie, S. E. (författare)
- Department of ecology, evolution and behavior, University of Minnesota, St. Paul, USA
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- Johansson, Maj-Britt (författare)
- Högskolan i Gävle
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- Liu, C. (författare)
- Department of landscape science and engineering, College of agriculture and biology, Shanghai, ChinaShanghai Jiao Tong university,
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- McClaugherty, C. (författare)
- Department of biology, Mount Union college, Alliance, USA
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- Norell, Lennart (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekonomi,Department of Economics,Unit of applied statistics and mathematics, SLU, Uppsala, Sweden
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- Rutigliano, F. A. (författare)
- Dipartimento di scienze ambientali, Seconda Università degli studi di Napoli, Caserta, Italy
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- Vesterdal, L. (författare)
- Forest & landscape Denmark, University of Copenhagen, Hørsholm, Denmark
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- Virzo De Santo, A. (författare)
- Dipartimento biologia strutturale e funzionale, Complesso universitario de Monte S. Angelo, Napoli, Italy
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Dipartimento biologia strutturale e funzionale, Complesso universitario di Monte S Angelo, Napoli, Italy; Department of forest ecology, University of Helsinki, Helsinki, Finland Centre for ecology and hydrology, Bangor (creator_code:org_t)
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- 2010-02-10
- 2010
- Engelska.
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Ingår i: Biogeochemistry. - : Springer Science and Business Media LLC. - 0168-2563 .- 1573-515X. ; 100:1, s. 57-73
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- We synthesized available data for decomposition of pine (Pinus) needle litter in pine forests to determine the litter chemical characteristics and climate factors that explained variation in the limit value, i. e. the level of accumulated mass loss at which the decomposition process either continues at a very low rate or possibly stops. Our data base included 56 separate studies on decomposition of pine needle litter, spanning Scots pine, lodgepole pine, Aleppo pine, stone pine and white pine, mainly incubated at the site of collection. Studies had 5 to 19 samplings, on average 10, and the decomposition was followed to a mass loss ranging from 47 to 83%, on average 67%. The periods from 3.0 to 5.4 years, on average 3.9 years, were of sufficient duration to allow estimates of limit values of decomposition. We used a linear mixed model with regression effects to relate limit values to potential explanatory variables, namely the sites' long-term mean annual temperature (MAT) and mean annual precipitation (MAP) and to substrate-chemistry factors. Regarding the latter, we explored two models; one that included initial concentrations of water solubles, lignin, N, P, K, Ca, Mg, and Mn and one that included only lignin, N, Ca, and Mn to focus on those nutrients known to influence lignin degradation. Using backward elimination significant explanatory variables were determined. For litter decomposed in its site of origin we found the limit value to depend mainly on the initial concentration of Mn, with higher Mn concentrations resulting in higher accumulated mass loss. Thus, litter with higher Mn reached a higher limit value and left a smaller stable fraction. This is likely due to the fact that Mn is an essential component of ligninolytic enzymes important for degrading litter in the later stages of decomposition. Manganese has received little attention in decomposition studies to date. Given its significance in this synthesis, the role of Mn in influencing variation in the late stages of decomposition among ecosystems and among litters of other genera besides Pinus deserves further attention.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Calcium
- Limit values
- Litter decomposition
- Manganese
- Maximum decomposition
- Nitrogen
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Berg, Björn
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Davey, M. P.
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De Marco, A.
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Emmett, B
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Faituri, M.
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Hobbie, S. E.
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Johansson, Maj-B ...
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Liu, C.
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McClaugherty, C.
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Norell, Lennart
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Rutigliano, F. A ...
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Vesterdal, L.
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Virzo De Santo, ...
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Biogeochemistry
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Högskolan i Gävle
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