Modelling long-term acidification trends of forested sandstone catchments in the Black Forest (SW Germany)
- Hinderer, M.
- Einsele, G.
DOIAbstract
An extensive database from eight Triassic (Bunter) sandstone catchments in the Black Forest, SW Germany, was used to apply the MAGIC model and simulate long-term acidification trends. Using the ion ratio (Ca+Mg)/(SO4+NO3) as criterium (values< 1.5 indicate an acidified state), hindcast simulations showed that the brooks of three catchments have reached values <1.5, three catchments are approaching 1.5, and two catchments (carbonate bearing upper Bunter) are still well above this limit. The different acidification state of the catchments is mainly caused by the amount of acidic deposition and bedrock geology. Other differences (shallow or deep groundwater circulation, sulphate sorption and soil parameters) are less significant. To simulate t...
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