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SFB 299: Project B2.3 - Modelling of landuse-dependent heavy metal loads in intensively farmed soils using the Model ATOMIS
Project
Project code: keine Angaben
Contract period: 01.01.1997
- 01.01.2008
Purpose of research: Basic research
The model ATOMIS (Assessment Tool for Metals in Soils), integrated in the model network ITE2M has been developed in the third project phase of the SFB 299 in subproject B 2.3. It estimates site-specifically long term development of the heavy metal status in top soils depending on landuse and cultivation system. In the fourth phase of the SFB 299 ATOMIS will be transferred to the Nidda-catchment containing the intensively used agricultural region Wetterau. The validation of model results shall be conducted for differently cultivated sites, of which a management documentation (data on soil tillage, fertilization, plant protection) for more than 20 years is available. The model validation on these selected locations and the further development of pedotransfer functions developed so far, imply analyzing and balancing of inorganic and organic pollutants in soils considering different land use systems. For organic pollutants the group of polychlorinated biphenyls (PCB 28, 52, 101, 138, 153, 180) is considered, for inorganic pollutants the heavy metals nickel, copper, zinc, cadmium and lead will be investigated. The pedotransfer functions, generated for these heavy metals in the last nine years of the project, allow the derivation of heavy metal concentrations in solid and soil solution phase regarding labile and stable soil properties. This allows the estimation of leaching and plant uptake in the balance approach. Inputs in the balance are atmospheric deposition as well as fertilizer-input (organic and mineral fertilizer, sewage sludge, biowaste compost) and pesticides.
Section overview
Subjects
- Soil science
