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Biogeochemistry of aluminum in McDonalds Branch watershed, New Jersey Pine Barrens

Technical Report ·
OSTI ID:5812956
Aluminum concentrations, fluxes, and storage were measured in the vegetation, forest floor, and acid, sandy mineral soil of a forested watershed in the New Jersey Pine Barrens. Volume-weighted mean Al concentrations in solution increased as water passed through the upland ecosystem, from 0.012 mg/l in bulk precipitation to 0.14 mg/l in throughfall to 0.45 mg/l in E horizon mineral soil, 0.60 mg/l in the B horizon, and 0.73 mg/l in the C horizon. Weighted mean Al concentration of the stream water was 0.15 mg/l. Solution Al concentrations in different compartments of the ecosystem were related to the magnitude of moisture flux, dissolved organic carbon concentration, and pH. Soil solution and stream water Al concentration were high in the winter and spring and low in the summer and fall, inversely following solution pH.
Research Organization:
Oak Ridge National Lab., TN (USA)
OSTI ID:
5812956
Report Number(s):
PB-86-164951/XAB
Country of Publication:
United States
Language:
English