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Leaf Area Influence on Surface Layer in a Deciduous ForestTemperate deciduous forest exhibit dramatic seasonal changes in surface exchange properties following on the seasonal changes in leaf area index. The canopy resistance to water vapor transport r(sub c) decreased abruptly at leaf emergence in each year but then also continued to decrease slowly during the remaining growing season due to slowly increasing LAI. Canopy resistance and PAR-albedo (albedo from photosynthetically active radiation) began to increase about one month before leaf fall with the diminishment of CO2 gradient above the canopy as well. At this time evaporation begun to be controlled as if the canopy were leafless.
Document ID
19980009405
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Sakai, Ricardo K.
(State Univ. of New York Albany, NY United States)
Fitzjarrald, David R.
(State Univ. of New York Albany, NY United States)
Moore, Kathleen E.
(State Univ. of New York Albany, NY United States)
Sicker, John W.
(State Univ. of New York Albany, NY United States)
Munger, Willian J.
(Harvard Univ. Cambridge, MA United States)
Goulden, Michael L.
(Harvard Univ. Cambridge, MA United States)
Wofsy, Steven C.
(Harvard Univ. Cambridge, MA United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1996
Publication Information
Publication: The Benefits of Modern Techniques for Weather Forecasting and Climate for Socio-Economical Activities
Volume: 2
Subject Category
Meteorology And Climatology
Funding Number(s)
CONTRACT_GRANT: DE-FC03-90ER-61010
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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