Skip to Main Content
Acid-base chemistry and aluminum transport in an acidic watershed and pond in New HampshireAuthor(s): Scott W. Bailey; Charles T. Driscoll; James W. Hornbeck
Source: Biogeochemistry. 28: 69-91.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: Download Publication (960.47 KB)
DescriptionCone Pond is one of the few acidic, clear-water ponds in the White Mountains of New Hampshire, a region dominated by high inputs of strong acids from atmospheric deposition and low base content of bedrock. Monitoring was conducted for 13 months to compare and contrast the acid-base chemistry of the terrestrial and aquatic portions of the watershed. Variations in Al concentration and speciation in drainage waters were correlated with changes in the supply of naturally occurring organic ligands. During the study period, the pond retained 28 % of Al inputs, including nearly half of the inputs of organically complexed Al. Chemical equilibrium calculations indicated that the entire water-column was oversaturated with respect to the solubility of synthetic gibbsite during summer, as was the hypolimnion during winter. Retention of Al resulted from an increase in pH in the hypolimnion concomitant with SO42- reduction, and from loss of organic anions in epilimnetic waters. Acid neutralizing capacity (ANC) generated in the pond primarily through SO42- reduction and base cation (CB) release was balanced by ANC consumed as a result of Al retention.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBailey, Scott W.; Driscoll, Charles T.; Hornbeck, James W. 1995. Acid-base chemistry and aluminum transport in an acidic watershed and pond in New Hampshire. Biogeochemistry. 28: 69-91.
KeywordsAcid neutralizing capacity, acidification, aluminum, dissolved organic carbon, lake, watershed
- Effects of future sulfate and nitrate deposition scenarios on Linville Gorge and Shining Rock Wildernesses
- Declining acidic deposition begins reversal of forest-soil acidification in the northeastern U.S
- Machine learning and hurdle models for improving regional predictions of stream water acid neutralizing capacity
XML: View XML