Rocky Mountain National Park bulk inorganic N deposition in close proximity to roads, summer 2021

Vehicles are an important source for N deposition that may negatively impact roadside ecosystems. While elevated roadside N deposition has been found in many locations, it is not yet known if vehicle emissions cause measurable increases of N deposition in complex, mountainous terrain adjacent to roads. To address this, this study investigated the effect of vehicle N emissions on throughfall (through trees) and open N deposition in a high traffic corridor in mountainous terrain of Rocky Mountain National Park, Colorado, USA. We measured bulk (wet + dry) atmospheric N deposition in throughfall and open samplers on transects of 750 (throughfall) and 225 (open) m moving away from the road using ion exchange resin (IER) collectors. This dataset contains inorganic nitrogen deposition data from this study.