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Studying the role of wood-decay fungi in calcium cycling on the Penobscot Experimental Forest: a progress reportAuthor(s): Walter C. Shortle; Jody Jellison; Kevin T. Smith; Jonathan S. Schilling
Source: In: Kenefic, Laura S.; Brissette, John C., comps. Penobscot Experimental Forest: 60 years of research and demonstration in Maine, 1950-2010. Gen. Tech. Rep. NRS-P-123. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 147-150.
Publication Series: Paper (invited, offered, keynote)
Station: Northern Research Station
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DescriptionDepletion of essential mineral nutrients from the rooting zone of trees in northern forests may reduce health and productivity. Long-term field investigations coupled with detailed laboratory studies enhance understanding of the biological processes and suggest means to address potential threats. One such investigation by the U.S. Department of Agriculture, Forest Service, in cooperation with the University of Maine, involves the role of wood-decay. fungi in cycling calcium (Ca) and other essential mineral nutrients. The investigation was established on the Penobscot Experimental Forest (Maine) in 1996 and 1997 and replicated in part on the Bartlett Experimental Forest (New Hampshire) in 1995. Some initial findings were: (1) A significant gain in Ca concentration in decaying wood occurred by 6 yr and that gain was sustained through 10 yr; (2) a significant gain in wood potassium was observed at 2 yr, but the gain was not sustained; and (3) observed changes in magnesium concentration in decaying wood were variable. Plans to continue this unique and important long-term study are described in this report.
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CitationShortle, Walter C.; Jellison, Jody; Smith, Kevin T.; Schilling, Jonathan S. 2014. Studying the role of wood-decay fungi in calcium cycling on the Penobscot Experimental Forest: a progress report. In: Kenefic, Laura S.; Brissette, John C., comps. Penobscot Experimental Forest: 60 years of research and demonstration in Maine, 1950-2010. Gen. Tech. Rep. NRS-P-123. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 147-150.
Keywordscoarse woody debris, forest soil, biogeochemical cycling, Maine
- Wood decay fungi restore essential calcium to acidic soils in northern New England
- Potential of decaying wood to restore root-available base cations in depleted forest soils
- Concentrations of Ca and Mg in early stages of sapwood decay in red spruce, eastern hemlock, red maple, and paper birch
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