Show simple item record

dc.contributor.authorTang, Jianwu  Concept link
dc.contributor.authorBolstad, Paul V.  Concept link
dc.contributor.authorMartin, Jonathan G.  Concept link
dc.date.accessioned2009-02-10T18:54:52Z
dc.date.available2009-02-10T18:54:52Z
dc.date.issued2008-07
dc.identifier.urihttps://hdl.handle.net/1912/2714
dc.descriptionAuthor Posting. © The Authors, 2008. This is the author's version of the work. It is posted here by permission of Blackwell for personal use, not for redistribution. The definitive version was published in Global Change Biology 15 (2009): 145-155, doi:10.1111/j.1365-2486.2008.01741.x.en
dc.description.abstractWe measured soil respiration and soil carbon stocks, as well as micrometeorological variables in a chronosequence of deciduous forests in Wisconsin and Michigan. The chronosequence consisted of (1) four recently disturbed stands, including a clearcut and repeatedly burned stand (burn), a blowdown and partial salvage stand (blowdown), a clearcut with sparse residual overstory (residual), and a regenerated stand from a complete clearcut (regenerated); (2) four young aspen (Populus tremuloides) stands in average age of 10 years; (3) four intermediate aspen stands in average age of 26 years; (4) four mature northern hardwood stands in average age of 73 years; and (5) an old-growth stand approximately 350 years old. We fitted site-based models and used continuous measurements of soil temperature to estimate cumulative soil respiration for the growing season of 2005 (days 133 to 295). Cumulative soil respiration in the growing season was estimated to be 513, 680, 747, 747, 794, 802, 690, and 571 gC m-2 in the burn, blowdown, residual, regenerated, young, intermediate, mature, and old-growth stands, respectively. The measured apparent temperature sensitivity of soil respiration was the highest in the regenerated stand, and declined from the young stands to the old-growth. Both cumulative soil respiration and basal soil respiration at 10˚C increased during stand establishment, peaked at intermediate age, and then decreased with age. Total soil carbon at 0-60 cm initially decreased after harvest, and increased after stands established. The old-growth stand accumulated carbon in deep layers of soils, but not in the surface soils. Our study suggests a complexity of long-term soil carbon dynamics, both in vertical depth and temporal scale.en
dc.description.sponsorshipThis work was primarily funded by the Office of Science/BER, U.S. Department of Energy Terrestrial Carbon Processes program (DE-FG02-00ER63023 and DE-FG02-03ER63682), and NASA Terrestrial Ecology Program (NNG05GD51G).en
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.relation.urihttps://doi.org/10.1111/j.1365-2486.2008.01741.x
dc.subjectChronosequenceen
dc.subjectSuccessionen
dc.subjectSoil respirationen
dc.subjectCO2 fluxen
dc.subjectSoil carbonen
dc.subjectOld-growthen
dc.titleSoil carbon fluxes and stocks in a Great Lakes forest chronosequenceen
dc.typePreprinten


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record