Show simple item record

dc.contributor.authorZhuang, Qianlai
dc.contributor.authorMelillo, Jerry M.
dc.contributor.authorSarofim, Marcus C.
dc.contributor.authorKicklighter, David W.
dc.contributor.authorMcGuire, A. David
dc.contributor.authorFelzer, Benjamin S.
dc.contributor.authorSokolov, Andrei P.
dc.contributor.authorPrinn, Ronald G.
dc.contributor.authorSteudler, Paul A.
dc.contributor.authorHu, Shaomin
dc.date.accessioned2006-10-16T16:51:10Z
dc.date.available2006-10-16T16:51:10Z
dc.date.issued2006-09-15
dc.identifier.urihttp://hdl.handle.net/1912/1264
dc.descriptionAuthor Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 33 (2006): L17403, doi:10.1029/2006GL026972.en
dc.description.abstractTerrestrial ecosystems of the northern high latitudes (above 50oN) exchange large amounts of CO2 and CH4 with the atmosphere each year. Here we use a process-based model to estimate the budget of CO2 and CH4 of the region for current climate conditions and for future scenarios by considering effects of permafrost dynamics, CO2 fertilization of photosynthesis and fire. We find that currently the region is a net source of carbon to the atmosphere at 276 Tg C yr-1. We project that throughout the 21st century, the region will most likely continue as a net source of carbon and the source will increase by up to 473 Tg C yr-1 by the end of the century compared to the current emissions. However our coupled carbon and climate model simulations show that these emissions will exert relatively small radiative forcing on global climate system compared to large amounts of anthropogenic emissions.en
dc.description.sponsorshipThis study was supported by a NSF Biocomplexity (ATM-0120468) and ARCSS programs; the NASA Land Cover and Land Use Change and EOS Interdisciplinary Science (NNG04GJ80G) programs; and by funding from MIT Joint Program on the Science and Policy of Global Change, which is supported by a consortium of government, industry and foundation sponsors.en
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_USen
dc.publisherAmerican Geophysical Union
dc.relation.urihttps://doi.org/10.1029/2006GL026972
dc.titleCO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st centuryen
dc.typeArticleen
dc.identifier.doi10.1029/2006GL026972


Files in this item

Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record