Soil carbon and coarse woody debris pools across a clearcut and burned chronosequence.
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 | https://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.relation.haspart | Graph | en_US |
dc.relation.haspart | Table of Numbers | en_US |
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.type | Working Paper | 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) |
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