Results 161 to 170 of about 2,661 (199)

CLASSIFICATION OF TEPHRA-DERIVED SPODOSOLS

Soil Science, 1990
There are many tephra-derived soils showing characteristic morphology and chemistry of Spodosols in humid cold climates. We reviewed ICOMOD (International Committee on the Classification of Spodosols) Proposal D by the National Soil Quality Survey Assurrance Staff (1989) using 43 tephra-derived soils from Alaska, the State of Washington, U.S.A., and ...
S. SHOJI, T. ITO
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Aluminum Chemistry in a Forested Spodosol

Soil Science Society of America Journal, 1985
Abstract The Al chemistry of seeps, soil solutions and soils was evaluated at the Hubbard Brook Experimental Forest in New Hampshire. Alumino‐organic substances predominated in solutions and in the free Al fraction of soils. Concentrations of both organic and inorganic forms of Al were highest at the higher elevations.
Driscoll, C.T., van Breemen, N., Mulder, J.   +2 more
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Carbon Storage in Florida Spodosols

Soil Science Society of America Journal, 1993
Abstract Spodosols are widely distributed in Florida and occupy about 27% of the state's land area. Our objective was to estimate total organic carbon (OC) in the 3.66 × 10 6 ha of Spodosols in Florida, and to partition that OC by horizon (Bh vs.
E. L. Stone, W. G. Harris, R. B. Brown, R. J. Kuehl   +3 more
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DDT: Persistence in Northern Spodosols

Journal of Environmental Quality, 1977
AbstractDDT (dichloro‐dipenyl‐trichloroethene) was used between 1954 and 1967 for the control of spruce budworm (Choristoneura fumiferana) in northern Maine. Soils originally tested in 1967 were resampled in 1973 and 1976 to help clarify the degree of persistence of DDT in northern spodosols.
Ray B. Owen, John B. Dimond, A. Stanley Getchell   +2 more
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Characteristic Morphology of U.S. Spodosols

Soil Science Society of America Journal, 1988
Abstract A computer data set of soil morphological data for most of the official U.S. soil series classified as Spodosols in December 1983 was developed to determine the characteristic morphology of Spodosol suborders. Included were 246 Orthods, 90 Aquods, and 35 Humods. Ferrods do not occur in the USA. The data for each suborder were
R. V. Rourke, B. R. Brasher, R. D. Yeck, F. T. Miller   +3 more
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Distribution and Characterization of Noncrystalline Inorganic Components in Spodosols and Spodosol‐Like Soils

Soil Science Society of America Journal, 1989
Abstract Three pedons of Spodosols or Spodosol‐like soils from Quebec and Ontario containing a considerable amount of acid‐oxalate extractable Al, Fe, and Si were examined in detail by additional selective chemical dissolution, x‐ray diffraction, infrared absorption, and Mössbauer methods to characterize ...
H. Kodama, C. Wang
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Phosphorus Saturation in Spodosols Impacted by Manure

Journal of Environmental Quality, 2002
ABSTRACTSignificant amounts of phosphorus (P) accumulate in soils receiving animal manures that could eventually result in unacceptable concentrations of dissolved P loss through surface runoff or subsurface leaching. The degree of phosphorus saturation (DPS) relates a soil's extractable P to its P sorbing capacity, and is reportedly a predictor of the
V D, Nair, D A, Graetz
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Phosphorus Release from a Biosolids‐Amended Sandy Spodosol

Journal of Environmental Quality, 2008
AbstractMost regulations governing biosolids land application do not consider that phosphorus (P) solubility can vary widely among biosolids. Current regulations typically group all biosolids together in one category or group biosolids together with manures.
Sarah L, Chinault, George A, O'Connor
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Spodosols Along the Southwest Oregon Coast

Soil Science Society of America Journal, 1982
Abstract Twenty‐five Spodosols and Inceptisols under forest were examined. Their climate is moist, marine, and temperate. Winters are cool and wet and summers mostly dry. The soils have some brittle horizons but should not be in duric subgroups.
W. D. Nettleton, R. B. Parsons, A. O. Ness, F. W. Gelderman   +3 more
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Problems with Spodosol Classification in the Field

Soil Survey Horizons, 2003
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Mokma, D.L., Yli-Halla, Markku
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