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Acid-base Characteristics of Soils in the Adirondack Mountains, New York

^a E&S Environmental Chemistry, Inc., P.O. Box 609, Corvallis, OR 97339
^b Dep. of Plant Soil and Environmental Sciences, Univ. of Maine, Orono, ME 04469
^c Dep. of Fisheries and Wildlife, Oregon State Univ., Corvallis, OR 97331
^d Dep. of Civil and Environmental Engineering, Syracuse Univ., Syracuse, NY 13244
^e SUNY College of Environmental Science and Forestry, Syracuse, NY 13210
^f NYS Dep. of Environmental Conservation, Bureau of Watershed Management, Albany, NY 12233

View larger version (106K): [in a new window]   Fig. 1. Locations of soil pits in EMAP watersheds sampled for this study, coded by measured B horizon base saturation.

View larger version (17K): [in a new window]   Fig. 2. Comparison of base saturation results between original (A sample) and replicate (B sample) soil samples. O horizon data are depicted as closed circles and B horizon data as open circles.

View larger version (36K): [in a new window]   Fig. 3. Mean composition of the effective cation-exchange capacity (CECe) and pHs from all watershed samples analyzed in the Adirondack watershed sampling conducted in 2003.

View larger version (20K): [in a new window]   Fig. 4. Relationship between watershed-aggregated B horizon soil base saturation and lakewater ANC for the 70 study lake watersheds.

View larger version (31K): [in a new window]   Fig. 5. Correlations between total C and effective cation exchange capacity (CECe) from all watershed samples analyzed in the Adirondack watershed sampling conducted in 2003.

View larger version (28K): [in a new window]   Fig. 6. Correlations between total C in the soil and H+ in equilibrium soil solutions from the soil pH in water measurements.

View larger version (28K): [in a new window]   Fig. 7. Cumulative distribution functions for a common population of Adirondack lake watersheds constructed for DDRP data collected in the mid 1980s and data compiled or collected in this study for EMAP lake watersheds in the early 1990s (lake chemistry) and in 2003 (soil chemistry). Comparisons are shown for (A) lakewater ANC, (B) B horizon soil base saturation, and (C) B horizon soil exchangeable Ca2+.