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Influence of red alder on chemical properties of a clay loam soil in western Washington.Author(s): D.S. DeBell; M.A. Radwan; J.M. Kraft
Source: Res. Pap. PNW-RP-313. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 7 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
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DescriptionChemical characteristics of mineral soil beneath red alder (Alnus rubra Bong.) stands of various ages were studied. Total nitrogen (N) of the 0-to 20-centimeter (0- to 8-inch) soil layer increased with stand age, and pH of both the 0- to 20-centimeter and 20- to 50-centimeter (8- to 20-inch) layers decreased with stand age. Contents of some mineral nutrients accumulated with N in one or the other soil layers. Conversely, exchangeable calcium and magnesium decreased substantially in the 0- to 20-centimeter layeras total N increased and pH decreased. Authors suggest monitoring base status of alder soils and testing base-containing fertilizers in red alder stands.
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CitationDeBell, D.S.; Radwan, M.A.; Kraft, J.M. 1983. Influence of red alder on chemical properties of a clay loam soil in western Washington. Res. Pap. PNW-RP-313. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 7 p
KeywordsSoil properties (chemical), red alder, Alnus rubra, nitrogen accretion, soil pH, mineral soils
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