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Changes in canopy processes following whole-forest canopy nitrogen fertilization of a mature spruce-hemlock forestAuthor(s): E. Gaige; D.B. Dail; D.Y. Hollinger; E.A. Davidson; I.J. Fernandez; H. Sievering; A. White; W. Halteman
Source: Ecosystems. 10: 1133-1147.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: Download Publication (610.48 KB)
DescriptionMost experimental additions of nitrogen to forest ecosystems apply the N to the forest floor, bypassing important processes taking place in the canopy, including canopy retention of N and/or conversion of N from one form to another. To quantify these processes, we carried out a large-scale experiment and determined the fate of nitrogen applied directly to a mature coniferous forest canopy in central Maine (18-20 kg N ha-1 y-1 as NH4NO3 applied as a mist using a helicopter).
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CitationGaige, E.; Dail, D.B.; Hollinger, D.Y.; Davidson, E.A.; Fernandez, I.J.; Sievering, H.; White, A.; Halteman, W. 2007. Changes in canopy processes nitrogen fertilization of a mature spruce-hemlock forest. Ecosystems. 10: 1133-1147.
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