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dc.contributor.author
Søe, Astrid R.B.
dc.contributor.author
Buchmann, Nina
dc.date.accessioned
2020-10-16T06:47:28Z
dc.date.available
2017-06-09T20:26:17Z
dc.date.available
2020-10-16T06:47:28Z
dc.date.issued
2005-11
dc.identifier.issn
0829-318X
dc.identifier.issn
1758-4469
dc.identifier.other
10.1093/treephys/25.11.1427
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/47710
dc.description.abstract
Soil CO2 efflux (soil respiration) plays a crucial role in the global carbon cycle and efflux rates may be strongly altered by climate change. We investigated the spatial patterns of soil respiration rates in 144 measurement locations in a 0.5-ha plot and the temporal patterns along a 300-m transect in the 0.5-ha plot. Measurements were made in an unmanaged, highly heterogeneous beech forest during 2000 and 2001. We investigated the effects of soil, roots and forest stand structure on soil respiration, and we also assessed the stability of these spatial patterns over time. Soil temperature alone explained between 68 and 95% of the temporal variation in soil respiration; however, pronounced spatial scatter of respiration rates was not explained by soil temperature. The observed spatial patterns stayed remarkably stable throughout the growing season and over 2 years. The most important structural parameter of the stand was the mean diameter at breast height of trees within a distance of 4 m of the measurement locations (m-dbh4), which explained 10–19% of the variation in soil respiration throughout the growing season. Among the soil chemical parameters, carbon content (bulk as well as dissolved) and magnesium content explained 62% of the spatial variation in soil respiration. The final best model combining soil, root and stand structural parameters (fine root biomass, soil carbon content, m-dbh4 and soil water content) explained 79% of the variation in soil respiration, illustrating the importance of both biotic and abiotic factors.
en_US
dc.language.iso
en
en_US
dc.publisher
Oxford University Press
en_US
dc.subject
canopy
en_US
dc.subject
fine root
en_US
dc.subject
soil CO2 efflux
en_US
dc.subject
soil moisture
en_US
dc.subject
soil nutrients
en_US
dc.subject
soil temperature
en_US
dc.subject
tree size
en_US
dc.title
Spatial and temporal variations in soil respiration in relation to stand structure and soil parameters in an unmanaged beech forest
en_US
dc.type
Journal Article
dc.date.published
2005-08-16
ethz.journal.title
Tree Physiology
ethz.journal.volume
25
en_US
ethz.journal.issue
11
en_US
ethz.pages.start
1427
en_US
ethz.pages.end
1436
en_US
ethz.identifier.nebis
000035127
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03648 - Buchmann, Nina / Buchmann, Nina
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03648 - Buchmann, Nina / Buchmann, Nina
ethz.date.deposited
2017-06-09T20:26:20Z
ethz.source
ECIT
ethz.identifier.importid
imp59364f19e7b9355579
ethz.ecitpid
pub:78524
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2017-07-19T10:27:34Z
ethz.rosetta.lastUpdated
2021-02-15T18:24:37Z
ethz.rosetta.versionExported
true
ethz.COinS
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