|SREL Reprint #2013|
FREE AND HUMIC-BOUND CARBOHYDRATES LEACHED FROM LEAVES OF FOUR FLOODPLAIN TREE SPECIES
Gary L. Mills, Charlotte P. Wolfe, and Barry R. Dalton
Savannah River Ecology Laboratory, University of Georgia, Drawer E, Aiken, SC 29802
ABSTRACT - Free and humic-bound carbohydrates were measured in rainfall
leached through leaves of four floodplain tree species. Leaf material differed in the
total amount of leachable carbohydrates as well as in the form of carbohydrate
released, i.e. free versus humic-bound. Red maple (Acer rubrum) contained the
greatest amount of cumulative total leachable carbohydrates, followed by
sweetgum (Liquidambar styracifula), sweet bay (Magnolia virginiana), and
white oak (Quercus alba). Sweetgum leachate contained the highest percentage
of free carbohydrates (69%), followed by sweet bay (29%), red maple (26%),
and white oak (23%). Greatest amounts of free carbohydrates in all species were
leached during the initial two to three rainfalls of the experiment.
SREL Reprint #2013
Mills, G.L., C.P. Wolfe, and B.R. Dalton. 1995. Free and humic-bound carbohydrates leached from leaves of four floodplain tree species. Communications in Soil Science and Plant Analysis 26:3335-3341.