How Time since Forest Fire Affects Stand Structure, Soil Physical-Chemical Properties and Soil CO2 Efflux in Hemiboreal Scots Pine Forest Fire Chronosequence?

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Köster , K , Köster , E , Orumaa , A , Parro , K , Jõgiste , K , Berninger , F A , Pumpanen , J S & Metslaid , M 2016 , ' How Time since Forest Fire Affects Stand Structure, Soil Physical-Chemical Properties and Soil CO 2 Efflux in Hemiboreal Scots Pine Forest Fire Chronosequence? ' , Forests , vol. 7 , no. 9 , 201 . https://doi.org/10.3390/f7090201

Title: How Time since Forest Fire Affects Stand Structure, Soil Physical-Chemical Properties and Soil CO2 Efflux in Hemiboreal Scots Pine Forest Fire Chronosequence?
Author: Köster, Kajar; Köster, Egle; Orumaa, Argo; Parro, Kristi; Jõgiste, Kalev; Berninger, Frank Alexander; Pumpanen, Jukka Sakari; Metslaid, Marek
Contributor: University of Helsinki, Department of Forest Sciences
University of Helsinki, Department of Forest Sciences
University of Helsinki, Department of Forest Sciences
University of Helsinki, University of Eastern Finland (UEF)
Date: 2016
Language: eng
Number of pages: 12
Belongs to series: Forests
ISSN: 1999-4907
URI: http://hdl.handle.net/10138/167528
Abstract: We compared the changes in aboveground biomass and initial recovery of C pools and CO2 efflux following fire disturbances in Scots pine (Pinus sylvesteris L.) stands with different time since stand-replacing fire. The study areas are located in hemiboreal vegetation zone, in north-western Estonia, in Vihterpalu. Six areas where the last fire occurred in the year 1837, 1940, 1951, 1982, 1997, and 2008 were chosen for the study. Our results show that forest fire has a substantial effect on the C content in the top soil layer, but not in the mineral soil layers. Soil respiration showed a chronological response to the time since the forest fire and the values were lowest in the area where the fire was in the year 2008. The respiration values also followed seasonal pattern being highest in August and lowest in May and November. The CO2 effluxes were lowest on the newly burned area through the entire growing season. There was also a positive correlation between soil temperature and soil respiration values in our study areas.
Subject: 1181 Ecology, evolutionary biology
4112 Forestry
fire disturbance
Pinus sylvestris
recovery
soil respiration
BOREAL FOREST
ORGANIC-MATTER
CARBON BALANCE
BIOMASS EQUATIONS
NORWAY SPRUCE
RESPIRATION
VEGETATION
DYNAMICS
WILDFIRE
NITROGEN
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