The results from these samplers vary depending on the sampling method, but do not include gaseous deposition and direct nitrogen uptake by the plant. Therefore, the ITNI measurement system (ITNI = Integral Total Nitrogen Input) was developed for the precise, direct determination of the total atmospheric nitrogen input into the soil-plant system (Russow and Weigel, 2000).
The novelty of this project lies in further developing and standardizing this system and carrying out measurements on regionally representative areas with uniform plants.
Project goals:
- Technical revision and further development of the existing ITNI concept
- Simplification of the sampling procedure and 15Nanalysis
- Creation of a prototype and testing of the concept at three locations (Gumpenstein, Stoderzinken, Wagna)
- Evaluation of site-specific N-deposition data
The further developed and standardized measurement system is of interest to environmental monitoring networks such as those of the Federal Environment Agency, state governments, and chambers of agriculture. Furthermore, it can be used for research questions in the scientific community (research institutes, universities) and thus contribute valuable information on the influence of atmospheric nitrogen deposition on fertilization and land use in agriculture and forestry.
Project duration: 2013 - 2015
Cooperation partners:
