Variation in the Surface Area Relationships of Loblolly Pine Fascicles
Authors: Shelton, M. G.; Switzer, G. L.
Source: Forest Science, Volume 30, Number 2, 1 June 1984 , pp. 355-363(9)
Publisher: Society of American Foresters
Abstract:Fascicle age and weight, canopy position, stand age, and site influence the surface area relationships of loblolly pine fascicles. Within the canopy, the specific leaf area (surface area/weight) is greatest for the current fascicles in the lower canopy and least for the older fascicles in the upper canopy. Variation in the specific leaf area is inversely related to fascicle density and diameter, both of which differ by fascicle age and canopy position. Older fascicles are 13 percent denser than current fascicles, and the fascicles in the upper canopy are 9 percent greater in diameter than those in the lower canopy. The range in specific leaf area among stands for a given fascicle age and canopy position is less than 20 percent of the overall mean. The fascicles of stands on poor sites are 26 percent lower in surface area and 30 percent lower in weight than those of comparably aged stands on good sites, but the specific leaf area differs by only 4 percent. Forest Sci. 30:355-363.
Document Type: Journal Article
Affiliations: Professor, Department of Forestry, Mississippi State University, Mississippi State, MS 39762
Publication date: 1 June 1984
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