Dissolved organic nitrogen budgets for upland, forested ecosystems in New England
- Download PDF (110758)
- This publication is available only online.
Biogeochemistry. 49: 123-142.
Relatively high deposition of nitrogen (N) in the northeastern United States has caused concern because sites could become N saturated. In the past, mass-balance studies have been used to monitor the N status of sites and to investigate the impact of increased N deposition. Typically, these efforts have focused on dissolved inorganic forms of N (DIN = NH4-N + NO3-N) and have largely ignored dissolved organic nitrogen (DON) due to difficulties in its analysis. Recent advances in the measurement of total dissolved nitrogen (TDN) have facilitated measurement of DON as the residual of TDN − DIN. We calculated DON and DIN budgets using data on precipitation and streamwater chemistry collected from 9 forested watersheds at 4 sites in New England.
KeywordsC:N ratio; dissolved organic carbon; dissolved organic nitrogen; nitrogen; stream chemistry; watershed
Campbell, John L.; Hornbeck, James W.; McDowell, William H.; Buso, Donald C.; Shanley, James B.; Likens, Gene E. 2000. Dissolved organic nitrogen budgets for upland, forested ecosystems in New England. Biogeochemistry. 49: 123-142.