Abstract
The SAFE dynamic geochemical model [Warfvinge, P., Falkengren-Grerup, U., Sverdrup, H., Andersen, B., 1993. Environ. Pollut. 80, 1–14] was applied to a ‘clean rain’ manipulation project performed on the Solling spruce experimental forest, Solling, Germany. The experiment included a roof-covered plot where ambient throughfall was replaced with synthetic throughfall, approximately corresponding to the calculated critical loads of acidity for this soil. Input of S and N to the system was reduced by 85 and 90%, respectively. The results of the modelling show that the model well reproduces the time scale and level of changes taking place in the soil solution chemistry due to the manipulation. Soil solution pH, A1 concentration and base cation concentration in the O and E horizons are very well reproduced in both the control and manipulation experiments. Differences between simulated and measured soil solution ANC in the deeper mineral soil are attributed to the release of previously stored S, which is not explicitly included in the SAFE model. This release would then increase in the clean rain experiment after the beginning of the experimental manipulation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
