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Incorporation of /sup 35/S-sulfate into inorganic and organic constituents of two forest soils

Conference · · Soil Sci. Soc. Am. J.; (United States)
OSTI ID:5152410
Incorporation of /sup 35/S-sulfate into phosphate-extractable S, hydriodic acid-reducible S (HI-S), and total S was measured in three horizons of Spodosols from the Huntington Forest, New York and Hubbard Brook Experimental Forest, New Hampshire. After 56 d /sup 35/S incorporated into nonwater-extractable S constituents was 92, 65, 92, 63, 72, and 91% of the total /sup 35/S-activity for the Huntington Forest Oa, Bh, Bsl, and Hubbard Brook Oa, Bh, and Bsl horizons, respectively. Immobilization of /sup 35/S-sulfate into carbon-bonded S (total S - HI-S) was the major incorporation pathway in the Oa horizons. Adsorption of /sup 35/S-sulfate (phosphate-extractable) was most evident in the Bh and Bsl horizons. Incorporation of /sup 35/S-sulfate into ester sulfate (HI-S - inorganic S) occurred in all horizons. The influence of immobilization-mineralization and adsorption-desorption on S dynamics of these forest soils was evaluated.
Research Organization:
State Univ. of New York, Syracuse
OSTI ID:
5152410
Conference Information:
Journal Name: Soil Sci. Soc. Am. J.; (United States) Journal Volume: 50:2
Country of Publication:
United States
Language:
English