Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Andrew D. Richardson; David Y. Hollinger; D. Bryan Dail; John T. Lee; J. William Munger; John O'Keefe
    Date: 2009
    Source: Tree Physiology. 29: 321-331.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (477.23 KB)


    Spring phenology is thought to exert a major influence on the carbon (C) balance of temperate and boreal ecosystems. We investigated this hypothesis using four spring onset phenological indicators in conjunction with surface-atmosphere CO2 exchange data from the conifer-dominated Howland Forest and deciduous-dominated Harvard Forest AmeriFlux sites. All phonological measures, including CO2 source-sink transition dates, could be well predicted on the basis of a simple twoparameter spring warming model, indicating good potential for improving the representation of phonological transitions and their dynamic responsiveness to climate variability in land surface models.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Richardson, Andrew D.; Hollinger, David Y.; Dail, D. Bryan; Lee, John T.; Munger, J. William; O'Keefe, John. 2009. Influence of spring phenology on seasonal and annual carbon balance in two contrasting New England forests. Tree Physiology. 29: 321-331.


    AmeriFlux, bud burst, carbon dioxide, eddy covariance, growing season length, phenology, spring onset, start of spring

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page