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Carbon fluxes in coniferous and deciduous forest soils

Title data

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

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER102313
Keywords: Soil CO2 efflux; Temperate forests; Litterfall; Belowground carbon allocation; Organic layer
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 11 Sep 2015 06:32
Last Modified: 11 Sep 2015 06:32
URI: https://eref.uni-bayreuth.de/id/eprint/19064