Soil carbon and coarse woody debris pools across a clearcut and burned chronosequence.

Show simple item record

dc.contributor.author Harrold, Katie H. en_US
dc.coverage.spatial UMBS Burn Plots en_US
dc.date.accessioned 2007-06-14T23:33:57Z
dc.date.available 2007-06-14T23:33:57Z
dc.date.issued 2005 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/55059
dc.description.abstract The size of both the CWD and soil C pools can drive the net ecosystem productivity (NEP) of a forest, losing C to the atmosphere through heterotrophic respiration and accruing C when the inputs have increased. Disturbance needs to be taken into account when modeling C storage. We estimated the mass of soil carbon (C) and coarse woody debris (CWD) C pools in clearcut and burned chronosequence stands (7-, 25-, 51-, and 69-yrs-old) in northern lower Michigan. The CWD-C mass in the 7-yr-old stand (8.40 +- 0.90 Mg C/ha) was signficantly greater than the four older stands (p<0.05), which were not significantly different from each other. The temporal pattern of CWD-C mass generally to follow the U-shaped pattern observed in other studies. We sampled mineral soil C pool at three depths (0-20, 20-40, 40-80 cm). The temporal patterns of the three depths were signficantly different, with the top (0-20 cm) layer exhibiting a U-shape distribution of C over time and the lower two (20-40 and 40-80 cm)not differing across stand age. The 7-yr-old stand had signficantly more C in the 0-20 cm layer of soil than the reference stand (11.95 +-0.87 and 6.47 +- 0.38 Mg C/ha, respectively). These results suggest that disturbance has a large effect on both pools through the input of legacy C. en_US
dc.format.extent 243865 bytes
dc.format.extent 3144 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.subject Undergraduate Research Exper. en_US
dc.subject.classification Aspen en_US
dc.subject.other GLOBAL en_US
dc.subject.other CLIMATE en_US
dc.subject.other CHANGE en_US
dc.subject.other CARBON en_US
dc.subject.other DIOXIDE en_US
dc.subject.other SOILS en_US
dc.subject.other FORESTS en_US
dc.subject.other BIOMASS en_US
dc.subject.other COARSE en_US
dc.subject.other WOODY en_US
dc.subject.other ECOSYSTEM en_US
dc.subject.other PRODUCTIVITY en_US
dc.title Soil carbon and coarse woody debris pools across a clearcut and burned chronosequence. en_US
dc.subject.hlbsecondlevel Natural Resource and Environment en_US
dc.subject.hlbtoplevel Science en_US
dc.contributor.affiliationum Biological Station, University of Michigan en_US
dc.contributor.affiliationumcampus Ann Arbor en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/55059/1/3504.pdf en_US
dc.description.filedescription Description of 3504.pdf : Access restricted to on-site users at the U-M Biological Station. en_US
dc.owningcollname Biological Station, University of Michigan (UMBS)
 Show simple item record

This item appears in the following Collection(s)


Search Deep Blue

Advanced Search

Browse by

My Account

Information

Coming Soon


MLibrary logo