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Effect of Clearcutting a Black Spruce Bog on Net Radiation

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Net radiation measured over a black spruce stand and a clearcut strip in a northern Minnesota bog showed little difference in daytime values the first summer after logging. The second summer after logging net radiation was lower in the clearcut strip than over the black spruce stand by 14 percent in June and 20 percent in September. This difference was due to different surface albedos. Although more energy was potentially available for evapotranspiration in the black spruce stand, more energy was converted into sensible heat than in the clearcut strip. Forest Sci. 18:273-277.

Keywords: Energy exchange; Picea mariana; albedo; energy balance; evapotranspiration; wetlands

Document Type: Journal Article

Affiliations: Research Plant Physiologist, Northern Conifer Laboratory, North Central Forest Exp. Stn., USDA Forest Service, Grand Rapids, Minn. 55744

Publication date: December 1, 1972

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