Denitrification rates under salt exposure for soils from four stormwater basins in Ithaca, New York

Description: This data represents denitrification rates as measured while conducting a denitrification enzyme assay (DEA) for soils from stormwater basins, with additions of salts of varying concentration to the basin soils. 

Sites: Stormwater basins on Cornell University campus in Ithaca, New York, USA.
Two wet basins, two dry basins. 

Within site measurements:
At each basin site, soils were collected from 5 locations. There are two
 reference locations just outside of each stormwater basin, in soil that is not receiving stormwater inputs. There are three 'Basin' locations
 located within each stormwater basin, and thus are influenced by inflowing stormwater, inflowing salts and other pollutants, and other conditions in each basin.

Methods:
The general DEA method is described in McPhillips and Walter (2015), referenced below. For full details on methodology, including chloride additions to incubation media, see the additional protocol document included with this repository. 

Column definitions in .csv files
Site- One of the four different stormwater basin sites
Treatment- the concentration of chloride added as NaCl to the denitrification incubation media
Measure Location- the location of soil sampling relative to the basin, either Reference or Basin
Denit_mgN_kg_hr- Denitrification rate, in mg N/kg/hr, as determined by methodology described in the protocol 

Reference for general DEA method (without chloride additions to soils):
 McPhillips, L.E. and M.T. Walter. 2015. Hydrologic conditions drive denitrification and greenhouse gas emissions in stormwater detention basins, Ecological Engineering, 85: 67-75, doi:10.1016/j.ecoleng.2015.10.018.