Notes: Within-Tree Variation in Mineral Content of Leaves of Young Balsam Fir
Abstract:Concentrations of nitrogen, phosphorus, potassium, calcium, and magnesium were examined in mid-September in 1- to 3-yr-old leaves from four different levels in crowns of 24- to 31-yr-old balsam fir (Abies balsamea [L.] Mill.) trees. Foliar concentrations of N, P, K, and Mg decreased significantly with increasing leaf age, but foliar Ca concentration increased. Leader foliage was significantly higher in concentrations of N, P, K, and Mg than other foliage. In the main body of the crown no effect of position on element concentration was discernible. In first-yr foliage no effect of position on foliar Ca concentration was evident, but in older leaves Ca accumulated at the base of the crown. Forest Sci. 20:276-278.
Document Type: Miscellaneous
Affiliations: Department of the Environment, Canadian Forestry Service, Great Lakes Forest Research Centre, Sault Ste. Marie, Ontario P6A 5M7
Publication date: September 1, 1974
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- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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