Ammonia emissions from peatland soils measured with a customized device

Wien

2014

S. 25

Artikel aus einer ZeitschriftUnselbständiges Werk

200190148

A customized device was built at the Institute of Soil Research (BOKU) to hold soil samples to conduct ammonia emission measurements of soils on a very sensitive scale (parts per billion). The device is moreover connected to an ammonia detector (Picarro G2103). Certain specificities (e.g. in terms of material and temperature) were considered in the construction process for the handling and measuring of ammonia due to its properties and the small scale of gas concentrations. The newly built device was tested with reference gases and various soil samples and then used to measure ammonia emissions of Scottish peat land soils. Samples are received of WHIM bog, UK, a research site where long-term Nitrogen deposition experiments are conducted. Further measurements of other compounds of the N cycle (e.g. NH4+, NO3-, NO, NO2, N2O, possibly N2) will be undertaken and results will be put in biogeochemical context.