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Carbon budget of the Harvard Forest Long- Term Ecological Research site: pattern, process, and response to global change
dc.contributor.authorFinzi, Adrien C.
dc.contributor.authorGiasson, Marc‐andré
dc.contributor.authorBarker Plotkin, Audrey A.
dc.contributor.authorAber, John D.
dc.contributor.authorBoose, Emery R.
dc.contributor.authorDavidson, Eric A.
dc.contributor.authorDietze, Michael C.
dc.contributor.authorEllison, Aaron M.
dc.contributor.authorFrey, Serita D.
dc.contributor.authorGoldman, Evan
dc.contributor.authorKeenan, Trevor F.
dc.contributor.authorMelillo, Jerry M.
dc.contributor.authorMunger, J. William
dc.contributor.authorNadelhoffer, Knute J.
dc.contributor.authorOllinger, Scott V.
dc.contributor.authorOrwig, David A.
dc.contributor.authorPederson, Neil
dc.contributor.authorRichardson, Andrew D.
dc.contributor.authorSavage, Kathleen
dc.contributor.authorTang, Jianwu
dc.contributor.authorThompson, Jonathan R.
dc.contributor.authorWilliams, Christopher A.
dc.contributor.authorWofsy, Steven C.
dc.contributor.authorZhou, Zaixing
dc.contributor.authorFoster, David R.
dc.date.accessioned2020-11-04T16:03:04Z
dc.date.availableWITHHELD_13_MONTHS
dc.date.available2020-11-04T16:03:04Z
dc.date.issued2020-11
dc.identifier.citationFinzi, Adrien C.; Giasson, Marc‐andré ; Barker Plotkin, Audrey A.; Aber, John D.; Boose, Emery R.; Davidson, Eric A.; Dietze, Michael C.; Ellison, Aaron M.; Frey, Serita D.; Goldman, Evan; Keenan, Trevor F.; Melillo, Jerry M.; Munger, J. William; Nadelhoffer, Knute J.; Ollinger, Scott V.; Orwig, David A.; Pederson, Neil; Richardson, Andrew D.; Savage, Kathleen; Tang, Jianwu; Thompson, Jonathan R.; Williams, Christopher A.; Wofsy, Steven C.; Zhou, Zaixing; Foster, David R. (2020). "Carbon budget of the Harvard Forest Long- Term Ecological Research site: pattern, process, and response to global change." Ecological Monographs 90(4): n/a-n/a.
dc.identifier.issn0012-9615
dc.identifier.issn1557-7015
dc.identifier.urihttps://hdl.handle.net/2027.42/163495
dc.description.abstractHow, where, and why carbon (C) moves into and out of an ecosystem through time are long- standing questions in biogeochemistry. Here, we bring together hundreds of thousands of C- cycle observations at the Harvard Forest in central Massachusetts, USA, a mid- latitude landscape dominated by 80- 120- yr- old closed- canopy forests. These data answered four questions: (1) where and how much C is presently stored in dominant forest types; (2) what are current rates of C accrual and loss; (3) what biotic and abiotic factors contribute to variability in these rates; and (4) how has climate change affected the forest- s C cycle? Harvard Forest is an active C sink resulting from forest regrowth following land abandonment. Soil and tree biomass comprise nearly equal portions of existing C stocks. Net primary production (NPP) averaged 680- 750 g C·m- 2·yr- 1; belowground NPP contributed 38- 47% of the total, but with large uncertainty. Mineral soil C measured in the same inventory plots in 1992 and 2013 was too heterogeneous to detect change in soil- C pools; however, radiocarbon data suggest a small but persistent sink of 10- 30 g C·m- 2·yr- 1. Net ecosystem production (NEP) in hardwood stands averaged ~300 g C·m- 2·yr- 1. NEP in hemlock- dominated forests averaged ~450 g C·m- 2·yr- 1 until infestation by the hemlock woolly adelgid turned these stands into a net C source. Since 2000, NPP has increased by 26%. For the period 1992- 2015, NEP increased 93%. The increase in mean annual temperature and growing season length alone accounted for ~30% of the increase in productivity. Interannual variations in GPP and NEP were also correlated with increases in red oak biomass, forest leaf area, and canopy- scale light- use efficiency. Compared to long- term global change experiments at the Harvard Forest, the C sink in regrowing biomass equaled or exceeded C cycle modifications imposed by soil warming, N saturation, and hemlock removal. Results of this synthesis and comparison to simulation models suggest that forests across the region are likely to accrue C for decades to come but may be disrupted if the frequency or severity of biotic and abiotic disturbances increases.
dc.publisherWiley Periodicals, Inc.
dc.publisherCambridge University Press
dc.subject.othernet primary production
dc.subject.otherpermanent plots
dc.subject.othergross primary production
dc.subject.otherbelowground production
dc.subject.othercarbon cycling
dc.subject.otherclimate change
dc.subject.otherdisturbance
dc.subject.otherecosystem ecology
dc.subject.othereddy covariance
dc.subject.otherforest ecosystems
dc.subject.otherlong- term ecological research
dc.titleCarbon budget of the Harvard Forest Long- Term Ecological Research site: pattern, process, and response to global change
dc.typeArticle
dc.rights.robotsIndexNoFollow
dc.subject.hlbsecondlevelEcology and Evolutionary Biology
dc.subject.hlbtoplevelScience
dc.description.peerreviewedPeer Reviewed
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/163495/3/ecm1423_am.pdfen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/163495/2/ecm1423-sup-0001-AppendixS1.pdfen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/163495/1/ecm1423.pdfen_US
dc.identifier.doi10.1002/ecm.1423
dc.identifier.sourceEcological Monographs
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