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A throughfall collection method using mixed bed ion exchange resin columnsAuthor(s): Mark E. Fenn; Mark A. Poth; Michael J. Arbaugh
Source: The Scientific World Journal 2:122-130
Publication Series: Miscellaneous Publication
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DescriptionMeasurement of ionic deposition in throughfall is a widely used method for measuring deposition inputs to the forest floor. Many studies have been published, providing a large database of throughfall deposition inputs to forests. However, throughfall collection and analysis is labor intensive and expensive because of the large number of replicate collectors needed and because sample collection and chemical analyses are required on a stochastic precipitation eventbased schedule. Therefore we developed and tested a throughfall collector system using a mixed bed ion exchange resin column. We anticipate that this method will typically require only one to three samplings per year. With this method, bulk deposition and bulk throughfall are collected by a funnel or snow tube and ions are retained as the solution percolates through the resin column. Ions retained by the resin are then extracted in the same column with 2 N KCl and analyzed for nitrate and ammonium.
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CitationFenn, Mark E.; Poth, Mark A.; Arbaugh, Michael J. 2002. A throughfall collection method using mixed bed ion exchange resin columns. The Scientific World Journal 2:122-130
KeywordsIon exchange resin, nitrogen deposition, throughfall, throughfall collector
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