Impact of hydrological variations on modeling of peatland CO2 fluxes: results from the North American Carbon Program site synthesis

Simple item page
dc.contributor.authorSulman, Benjamin N.
dc.contributor.authorDesai, Ankur R.
dc.contributor.authorSchroeder, Nicole M.
dc.contributor.authorRicciuto, Daniel M.
dc.contributor.authorBarr, Alan G.
dc.contributor.authorRichardson, Andrew D.
dc.contributor.authorFlanagan, Larry B.
dc.contributor.authorLafleur, Peter M.
dc.contributor.authorTian, Hanqin
dc.contributor.authorChen, Guangsheng
dc.contributor.authorGrant, Robert F.
dc.contributor.authorPoulter, Benjamin
dc.contributor.authorVerbeeck, Hans
dc.contributor.authorCiais, Philippe
dc.contributor.authorRingeval, Bruno
dc.contributor.authorBaker, Ian T.
dc.contributor.authorSchaefer, Kevin
dc.contributor.authorLuo, Yiqi
dc.contributor.authorWong, Ensheng
dc.date.accessioned2019-08-27T19:34:23Z
dc.date.available2019-08-27T19:34:23Z
dc.date.issued2012
dc.descriptionSherpa Romeo green journal. Permission to archive final published versionen_US
dc.description.abstractNorthern peatlands are likely to be important in future carbon cycle-climate feedbacks due to their large carbon pools and vulnerability to hydrological change. Use of non-peatland-specific models could lead to bias in modeling studies of peatland-rich regions. Here, seven ecosystem models were used to simulate CO2 fluxes at three wetland sites in Canada and the northern United States, including two nutrient-rich fens and one nutrient-poor, sphagnum-dominated bog, over periods between 1999 and 2007. Models consistently overestimated mean annual gross ecosystem production (GEP) and ecosystem respiration (ER) at all three sites. Monthly flux residuals (simulated – observed) were correlated with measured water table for GEP and ER at the two fen sites, but were not consistently correlated with water table at the bog site. Models that inhibited soil respiration under saturated conditions had less mean bias than models that did not. Modeled diurnal cycles agreed well with eddy covariance measurements at fen sites, but overestimated fluxes at the bog site. Eddy covariance GEP and ER at fens were higher during dry periods than during wet periods, while models predicted either the opposite relationship or no significant difference. At the bog site, eddy covariance GEP did not depend on water table, while simulated GEP was higher during wet periods. Carbon cycle modeling in peatland-rich regions could be improved by incorporating wetland-specific hydrology and by inhibiting GEP and ER under saturated conditions. Bogs and fens likely require distinct plant and soil parameterizations in ecosystem models due to differences in nutrients, peat properties, and plant communities.en_US
dc.description.peer-reviewYesen_US
dc.identifier.citationSulman, B. N., Desai, A. R., Schroeder, N. M., Ricciuto, D., Barr, A., Richardson, A. D.,...Weng, E. (2012). Impact of hydrological variations on modeling of peatland CO2 fluxes: Results from the North American Carbon Program site synthesis. Journal of Geophysical Research (Biogeosciences), 117, G01031. doi:10.1029/2011JG001862, 2012en_US
dc.identifier.urihttps://hdl.handle.net/10133/5524
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.publisher.institutionUniversity of Wisconsin-Madisonen_US
dc.publisher.institutionOak Ridge National Laboratoryen_US
dc.publisher.institutionEnvironment Canadaen_US
dc.publisher.institutionHarvard Universityen_US
dc.publisher.institutionUniversity of Lethbridgeen_US
dc.publisher.institutionTrent Universityen_US
dc.publisher.institutionAuburn Universityen_US
dc.publisher.institutionUniversity of Albertaen_US
dc.publisher.institutionSwiss Federal Research Instituteen_US
dc.publisher.institutionLaboratoire des Sciences du Climat et de l'Environmenten_US
dc.publisher.institutionGhent Universityen_US
dc.publisher.institutionColorado State Universityen_US
dc.publisher.institutionUniversity of Colorado at Boulderen_US
dc.publisher.institutionUniversity of Oklahomaen_US
dc.publisher.urlhttps://dx.doi.org/10.1029/2011JG001862
dc.subjectCO2 fluxesen_US
dc.subjectNorth American Carbon Programen_US
dc.subjectEcosystem modelsen_US
dc.subjectEddy covarianceen_US
dc.subjectHydrologyen_US
dc.subjectPeatlandsen_US
dc.subject.lcshBog ecology
dc.subject.lcshFen ecology
dc.subject.lcshPeatland ecology
dc.subject.lcshEvapotranspiration
dc.titleImpact of hydrological variations on modeling of peatland CO2 fluxes: results from the North American Carbon Program site synthesisen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Flanagan-impact-of-hydrological.pdf
Size:
1021.7 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Flanagan, Larry