C & N in plants biomass in bioretention systems at GIRF

The dataset contains isotopic carbon, nitrogen, %C and %N in plants in GIRF bioretention. Plants in bioretention systems were harvested in May 2015 and analyzed by Oct 2015. % C and % N were analyzed in root and shoot samples. Upland contains native Utah’s vegetation, and wetland systems have wetland vegetation dominant in wetland systems. To determine C and N in plant biomass, each plant was divided into roots and shoots and dried in an oven to the constant mass at 40oC for 48 hours. CN samples were run on Thermo-Electron Delta IRMS configured through Thermo/Finnigan CONFLO III. d15N & d13C was analyzed using a Carlo Erba NC2100 elemental analyzer. Wetland 7 and Upland 8 does not have root data as the plants in these bioretention units were not harvested.