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Using Ion-Exchange Resins to Study Soil Response to Experimental Watershed AcidificationAuthor(s): Johanna E. Szillery; Ivan J. Fernandez; Stephen A. Norton; Lindsey E. Rustad; Alan S. White
Source: Environmental Monitoring and Assessment
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionIon-exchange resins (IER) offer alternative approaches to measuring ionic movement in soils that may have advantages over traditional approaches in some settings, but more information is needed to understand how IER compare with traditional methods of measurement in forested ecosystems. At the Bear BrookWatershed in Maine (BBWM), one of two paired, forested watersheds is treated bi-monthly with S and N (28.8 and 25.2 kg ha−1 yr−1 of S and N, respectively). Both IER and ceramic cup tension lysimeters were used to study soil solution responses after ∼11 years of treatment. Results from both methods showed treatments resulted in the mobilization of base cations and Al, and higher SO4–S and inorganic N in the treated watershed. Both methods indicated similar differences in results associated with forest type (hardwoods versus softwoods), a result of differences in litter quality and atmospheric aerosol interception capacity. The correlation between lysimeter and IER data for individual analytes varied greatly. Significant correlations were evident for Na (r = 0.75), Al (r = 0.65), Mn (r = 0.61), Fe (r = 0.57), Ca (r = 0.49), K (r = 0.41) and NO3–N (r = 0.59). No correlation was evident between IER and soil solution data for NH4–N and Pb. Both IER and soil solution techniques suggested similar interpretations of biogeochemical behavior in the watershed.
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CitationSzillery, Johanna E.; Fernandez, Ivan J.; Norton, Stephen A.; Rustad, Lindsey E.; White, Alan S. 2006. Using Ion-Exchange Resins to Study Soil Response to Experimental Watershed Acidification. Environmental Monitoring and Assessment. 116(1-3): 383-398. https://doi.org/10.1007/s10661-006-7462-3.
Keywordsacidification, ion-exchange resin, nitrogen, soil solution, sulfur, watershed processes
- Mineral soil and solution responses to experimental N and S enrichment at the Bear Brook Watershed in Maine (BBWM)
- Soilaluminum, iron, and phosphorus dynamics in response to long-term experimental nitrogen and sulfur additions at the Bear Brook Watershed in Maine, USA
- Foliar free polyamine and inorganic ion content in relation to soil and soil solution chemistry in two fertilized forest stands at the Harvard Forest, Massachusetts
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