Acer saccharum

Elk (Cervus elapliis Artiodactyla) / Fireweed (Epilobium anqustifolium Qnaqraceae) and Maple (Acer saccharum Aceraceae... 

Patterns of polyphenol accumulation In leaves vary among the few temperate forest species which have been studied. Feeny s (42) classic study on oak leaves (Quercus robur) shows leaf tannin levels rising slowly until August, and then Increasing sharply. In the cases of sugar maple (Acer saccharum) and yellow birch (Betula lutea) (44), respectively. 

Maple Block Screening Method. A series of experimental procedures were performed on bonding maple block wood (Cook, P. M., Eastman Kodak at Kingsport, TN, personal communications, 1987). The procedure adopted was the ASTM D 905 standard, modified as follows Sugar maple (Acer saccharum) wood, 76 by 25 by 5.7 mm in size (3 inches long, 1 inch wide, and 0.25 inch thick), with 6% moisture content was planed to obtain fresh surfaces for bonding. The desired amount of resin (with no mix additives) was weighed (58.6 g/m2, 12 lb/1000 ft2, resin solids basis) and applied to one block surface and then a second clean block was overlapped so that 25 square mm (1 square inch) surface area common to each block was coated. The resin coated blocks were placed directly in the hot press (no clamp time). The blocks were hot pressed at 177°C (350°F) for 4 to 6 minutes at 3.44 MPa (500 psi). All bonded blocks were allowed to... 

Maple symp is prepared by concentrating (evaporation or reverse osmosis) sap from the maple tree to a concentrated solution containing predominantly sucrose. Its characteristic flavor and color are formed during evaporation. Maple symp is produced from the sap of several varieties of mature maple trees, eg, the sugar maple (Acer saccharum) and black maple (Acer nigrum). 

This is a north temperate family with some distribution in the mountains of the tropical zone. Trees are valued as ornamentals, as lumber, and, in northern North America at least, as the basis for the maple sugar industry (Acer saccharum). Of the species in the family, all but ten are assigned to the genus Acer. 

Lock, M. A., and H. B. N. Hynes. 1976. The fate of dissolved organic carbon derived from autumn-shed maple leaves (Acer saccharum) in a temperate hard-water stream. Limnology and Oceanography 21 436-443. 

Cortes, P. M. and Sinclair, T. R. (1965). The role of osmotic potential in spring sap flow of mature sugar maple trees (Acer saccharum Marsh). ]. Exp. Bot. 36,12-24. 

Mollica, J. N. and Morselli, M. F. (1984). Gas chromatographic determination of nonvolatile organic acids in sap of sugar maple (Acer saccharum Marsh). JAOAC 67,1125-1129. 

Pollard, J. K. and Sproston, T. (1954). Nitrogenous constituents of sap exuded from the sapwood of Acer saccharum. Plant Physiol. 29, 360-364. 

Sugar maple (Acer saccharum Marsh.) has been affected in Ontario, Canada. The reason of this die-back is also not clearly known. 

A sugar maple Acer saccharum) on a road near Grandville, Michigan. Photograph by James Silrkema. Reproduced by perrr)ission. 

Acer saccharum Marsh. (Sugar Maple) Sapwood 60 61 40 65 160 229 225... 

Extractive-free wood flour of Acer saccharum Marsh, (sugar maple), a-cellulose, birch acetyl-4-O-methylglucuronoxylan, and spruce-milled wood lignin were treated with 40% HNO3 and the resulting products were investigated by IR and UV spectroscopy in... 

Table 3.4. Analysis of water vapour adsorption by wood (Acer saccharum and Picea sitchensis) using the BET equation (Stamm, 1964).

Fossil pollen in a series of small forest hollows about 10 m in diameter provides a record of hemlock invasion of individual forest stands along a 10-km transect in northern Michigan. The distribution of species within the present-day forest, which has never been clearcut, is patchy—a mosaic of stands dominated by hemlock interspersed with mixed stands and large patches dominated by sugar maple (Acer saccharum). Pollen diagrams from four... 

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