Effect of Nitrogen Availability on Nitrogen Cycling in a Douglas-Fir Stand
Short-term nitrogen cycling in a Douglas-fir stand was assessed for uptake and return to the forest floor. The five treatments included separate applications of nitrogen and carbohydrate, the latter being used to widen the forest floor C/N ratio and reduce N availability. Effects of nitrogen applications included increased N uptake and needle biomass and decreased forest floor weight compared to the control, while the carbohydrate treatment caused a reduction in N uptake, increased internal redistribution, and reduced needle biomass. FOREST SCI. 23:307-316.
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Document Type: Journal Article
Affiliations: Research Officer, Forestry Commission of N.S.W., P.O. Box 100, Beecroft, N.S.W., Australia, 2119
Publication date: 1977-09-01
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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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