The age of CO2 released from soils in contrasting ecosystems during the arctic winter
Hartley, IP; Garnett, Mark H.; Sommerkorn, M; et al.Hopkins, DW; Wookey, PA
Date: 26 March 2013
Article
Journal
Soil Biology and Biochemistry
Publisher
Elsevier
Publisher DOI
Abstract
In arctic ecosystems, winter soil respiration can contribute substantially to annual CO2 release, yet the source of this C is not clear. We analysed the 14C content of C released from plant-free plots in mountain birch forest and tundra-heath. Winter-respired CO2 was found to be a similar age (tundra) or older (forest) than C released ...
In arctic ecosystems, winter soil respiration can contribute substantially to annual CO2 release, yet the source of this C is not clear. We analysed the 14C content of C released from plant-free plots in mountain birch forest and tundra-heath. Winter-respired CO2 was found to be a similar age (tundra) or older (forest) than C released during the previous autumn. Overall, our study demonstrates that the decomposition of older C can continue during the winter, in these two contrasting arctic ecosystems.
Geography - old structure
Collections of Former Colleges
Item views 0
Full item downloads 0