Dry deposition determinations, along with wet deposition and throughfall (TF) measurements, at a ... more Dry deposition determinations, along with wet deposition and throughfall (TF) measurements, at a spruce fir forest in central Maine were used to estimate the effect of atmospherically deposited nitrogen (N) uptake on forest carbon storage. Using nitric acid and particulate ...
A field experiment was designed to evaluate the effects of differing forms of acidifying S and N ... more A field experiment was designed to evaluate the effects of differing forms of acidifying S and N compounds on the chemistry of soils and soil solutions in a low elevation coniferous forest in northern New England. Treatments consisted of O, 1500, 3000, and 6000 eq of SO42− or NO3− ha−1 for the 1987 growing season applied biweekly as H2SO4 or HNO3, or in a single application as dry] (NH4)2SO4. Acidifying treatments resulted in a significant increase in soil solution SO42− (1.2 to 2.6) or NO3− (12 to 80) in the upper B horizon. Excess strong acid anion leaching was associated with an accelerated loss of base cations, particularly MG2+ As solutions passed through the upper 25 cm of the soil profile, mean SO42− concentrations decreased by 5 to 50% of the initial values, indicating that much of the applied SO42− was immobilized in the upper portion of the pedon. Elevated concentrations of adsorbed and water-soluble SO42− indicate that abiotic adsorption of SO42− by soils is the dominant mechanism for the initial attenuation of SO42− concentrations in these solutions. Other soil properties showed only small or no change due to treatments over the single growing season of this study. These results indicate that H2SO4, HNO3, and (NH4)2SO4 can all effectively increase strong acid anion concentrations in the soil-soil solution system.
Communications in Soil Science and Plant Analysis, 1989
... Titles, A comparison of methods for measuring extractable Ca, Mg, K, Na, Mn, Al, Fe, and P fr... more ... Titles, A comparison of methods for measuring extractable Ca, Mg, K, Na, Mn, Al, Fe, and P from New England forest soils. Personal Authors, Kraske, CR (University of Maine, Orono, ME),Fernandez, IJ,Spencer, CJ. Publication Date, (Feb 1989). AGRIS Subj. Cat. ...
Dry deposition determinations, along with wet deposition and throughfall (TF) measurements, at a ... more Dry deposition determinations, along with wet deposition and throughfall (TF) measurements, at a spruce fir forest in central Maine were used to estimate the effect of atmospherically deposited nitrogen (N) uptake on forest carbon storage. Using nitric acid and particulate ...
A field experiment was designed to evaluate the effects of differing forms of acidifying S and N ... more A field experiment was designed to evaluate the effects of differing forms of acidifying S and N compounds on the chemistry of soils and soil solutions in a low elevation coniferous forest in northern New England. Treatments consisted of O, 1500, 3000, and 6000 eq of SO42− or NO3− ha−1 for the 1987 growing season applied biweekly as H2SO4 or HNO3, or in a single application as dry] (NH4)2SO4. Acidifying treatments resulted in a significant increase in soil solution SO42− (1.2 to 2.6) or NO3− (12 to 80) in the upper B horizon. Excess strong acid anion leaching was associated with an accelerated loss of base cations, particularly MG2+ As solutions passed through the upper 25 cm of the soil profile, mean SO42− concentrations decreased by 5 to 50% of the initial values, indicating that much of the applied SO42− was immobilized in the upper portion of the pedon. Elevated concentrations of adsorbed and water-soluble SO42− indicate that abiotic adsorption of SO42− by soils is the dominant mechanism for the initial attenuation of SO42− concentrations in these solutions. Other soil properties showed only small or no change due to treatments over the single growing season of this study. These results indicate that H2SO4, HNO3, and (NH4)2SO4 can all effectively increase strong acid anion concentrations in the soil-soil solution system.
Communications in Soil Science and Plant Analysis, 1989
... Titles, A comparison of methods for measuring extractable Ca, Mg, K, Na, Mn, Al, Fe, and P fr... more ... Titles, A comparison of methods for measuring extractable Ca, Mg, K, Na, Mn, Al, Fe, and P from New England forest soils. Personal Authors, Kraske, CR (University of Maine, Orono, ME),Fernandez, IJ,Spencer, CJ. Publication Date, (Feb 1989). AGRIS Subj. Cat. ...
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