Atmospheric deposition of reactive nitrogen to a deciduous forest in the southern Appalachian Mountains.

ABSTRACT: Assessing nutrient critical load exceedances requires complete and accurate atmospheric deposition budgets for reactive nitrogen (N_r). The exceedance is the total amount of N_r deposited to the ecosystem in excess of the critical load, which is the amount of N_r input below which harmful effects do not occur. Total deposition includes all forms of N_r (i.e., organic and inorganic) deposited to the ecosystem by wet and dry pathways. Here we present results from the Southern Appalachian Nitrogen Deposition Study (SANDS), in which a combination of measurements and field-scale modeling was used to develop a complete annual N_r deposition budget for a deciduous forest at the Coweeta Hydrologic Laboratory. Wet deposition of ammonium, nitrate, ni

SUBMITTER: Walker JT 

PROVIDER: S-EPMC11492993 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature