Microbial nitrate processing in shallow groundwater in a riparian forest

Authors

Peter M. Groffman, Institute of Ecosystem Studies
Galen Howard, University of Rhode Island
Arthur J. Gold, University of Rhode Island
William M. Nelson

Document Type

Article

Date of Original Version

1-1-1996

Abstract

Denitrification, immobilization, and respiration in microcosms that simulated groundwater conditions in a riparian forest in Rhode Island were measured. Measured rates were compared with rates of NO3- removal measured in a companion study using a groundwater monitoring well network and 10-mo injection of NO3- and a bromide tracer to groundwater in the same riparian forest. Limiting factors for denitrification were assessed, and microbial and root biomass and potential net N mineralization and nitrification were compared in aquifer material exposed to the 10 mo of NO3- dosing and unexposed control material.

Publication Title, e.g., Journal

Journal of Environmental Quality

Volume

25

Issue

6

Citation/Publisher Attribution

Groffman, Peter M., Galen Howard, Arthur J. Gold, and William M. Nelson. "Microbial nitrate processing in shallow groundwater in a riparian forest." Journal of Environmental Quality 25, 6 (1996). doi: 10.2134/jeq1996.00472425002500060020x.