Current thinking about the cause underlying these higher concentrations focuses on the response of soils to declining acidity of rain and other precipitation. The idea is that as acidity of rain decreases, the solubility of organic acids will increase and these compounds are then more likely to be leached from the soils. Our research posed the question of whether there was also an effect of nitrogen deposition on organic matter release. Several lab and field plot studies have shown that under nitrogen fertilizer application some soils show a greater release of DOC. Since N deposition rates have not decreased across most of the northeastern US then soils are still subject to fairly high nitrogen inputs.
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Current thinking about the cause underlying these higher concentrations focuses on the response of soils to declining acidity of rain and other precipitation. The idea is that as acidity of rain decreases, the solubility of organic acids will increase and these compounds are then more likely to be leached from the soils. Our research posed the question of whether there was also an effect of nitrogen deposition on organic matter release. Several lab and field plot studies have shown that under nitrogen fertilizer application some soils show a greater release of DOC. Since N deposition rates have not decreased across most of the northeastern US then soils are still subject to fairly high nitrogen inputs.
" />
Current thinking about the cause underlying these higher concentrations focuses on the response of soils to declining acidity of rain and other precipitation. The idea is that as acidity of rain decreases, the solubility of organic acids will increase and these compounds are then more likely to be leached from the soils. Our research posed the question of whether there was also an effect of nitrogen deposition on organic matter release. Several lab and field plot studies have shown that under nitrogen fertilizer application some soils show a greater release of DOC. Since N deposition rates have not decreased across most of the northeastern US then soils are still subject to fairly high nitrogen inputs.
" />
Current thinking about the cause underlying these higher concentrations focuses on the response of soils to declining acidity of rain and other precipitation. The idea is that as acidity of rain decreases, the solubility of organic acids will increase and these compounds are then more likely to be leached from the soils. Our research posed the question of whether there was also an effect of nitrogen deposition on organic matter release. Several lab and field plot studies have shown that under nitrogen fertilizer application some soils show a greater release of DOC. Since N deposition rates have not decreased across most of the northeastern US then soils are still subject to fairly high nitrogen inputs.
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