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Carbon fluxes in coniferous and deciduous forest soils


Wunderlich, Steve ; Schulz, Christoph ; Grimmeisen, Winfried ; Borken, Werner:
Carbon fluxes in coniferous and deciduous forest soils.
In: Plant and Soil. Bd. 357 (2012) Heft 1-2 . - S. 355-368.
ISSN 1573-5036
DOI: https://doi.org/10.1007/s11104-012-1158-y


Aims Our aims were to identify responsible factors for the site-to-site variability in soil CO2 efflux and to assess the sources of soil CO2 of different forest types on a regional scale.
Methods Soil CO2 effluxes were measured over 1–4 years in four coniferous and three deciduous forests of Bavaria, Germany, and related to climate, soil propertiesand forest productivity. Total belowground carbon allocation (TBCA) was assessed using soil CO2effluxes and aboveground litterfall. Additionally, CO2production of organic layers was examined over 10 months under constant conditions in an incubation experiment.
Results Annual soil CO2 effluxes were not different among the forest sites, but predicted effluxes at a given temperature of 10°C revealed some significant differences and correlated with the phosphorous stock of the organic layers. The incubation study indicated 50% faster decomposition of organic layers from deciduous than from coniferous forests. TBCA related tosoil CO2 efflux was smaller in the deciduous than in the coniferous forests. The ratio of TBCA to soil CO2 efflux was positively correlated with the C stock oforganic layers.
Conclusions Our results suggest that marked differences in site characteristics have little impact on soil CO2 effluxes at the regional scale, but the contribution of soil CO2 sources varies among the forest types.

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Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER102313
Keywords: Soil CO2 efflux; Temperate forests; Litterfall; Belowground carbon allocation; Organic layer
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenökologie
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 11 Sep 2015 06:32
Letzte Änderung: 11 Sep 2015 06:32
URI: https://eref.uni-bayreuth.de/id/eprint/19064