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Caloric Values for Young Sprouts of Nine Hardwood Species

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Caloric content, specific gravity, and ash content of 6- to 15-year-old sprouts of nine hardwood species were determined in midsummer. Energy values for wood, bark, first order branches, twigs, and leaves were determined with an adiabatic bomb calorimeter. The values found for coppice material averaged 4,791 cal/g and were comparable to published values for older wood. Intraspecific differences among tissues were greater than the relatively small but significant differences among species. Differences in yield potential are therefore likely to outweigh variations in caloric content among species where total energy production per unit of land area is concerned. Ash content varied from 0.65 percent for wood to 5.88 percent for bark. Forest Sci. 25:455-461.

Keywords: Short-rotation forestry; biomass; fuelwood; solar energy

Document Type: Journal Article

Affiliations: Associate Professor, School of Forest Resources, University of Georgia, Athens, Georgia 30602, USA

Publication date: September 1, 1979

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