2004•Unpublished venueRequires access
Riparian Silver Maple and Upland Sugar Maple Trees Sap Sugar Parameters in Southern Illinois
M.L. Crum, James J. Zaczek, Andrew D. Carver, Karl W. J. Williard, J.K. Buchheit, John E. Preece, Jean C. Mangun
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Abstract
—Forty two upland sugar maple trees and 59 riparian silver maples were tapped in 2003 to characterize their sap sugar parameters within the southern Illinois region. The mean sap sugar concentration (SSC) among all sugar maple trees was 2.03 percent (1.53 to 3.18 percent range) and the mean sap volume was 133.7 liters per tree or 44.6 liters per tap. Tree basal area was significantly related to total sap volume but not SSC in sugar maples. Sugar maple trees receiving additional taps than recommended guidelines had significantly reduced mean volume per tap but similar total sap volume compared to guideline-tapped trees. Silver maple mean SSC for the season was 1.71 percent (1.10 to 2.53 percent range) and mean total sap volume was 32.6 liters or 23.5 liters per tap. Silver maple total sap volume and sap volume per tap was dependent upon number of taps per tree. Total sap volume and SSC was positively related to basal area of silver maples.