In SP 5 "Mangrove Ecosystem" (IGÖ of TU Braunschweig) new scientific ground will be broken by quantifying the function of mangrove forests as a natural wetland for polluted estuary systems. For this purpose the processes that describe the absorption of substances by roots, their distribution and degradation have to described in a local model. On the basis of the local model, that represents a single mangrove tree, simplified reactor models will be developed, characterized by the composition of the mangrove ecosystem, stocking density, soil properties, salinity and the hydrological regime. The next step is a scaling up from the fine scale of the ecological processes into larger scale models (water catchment, landscape, region). The fine scale models will be applied on the level of a landscape model, which included simplified mass transport in the river model. In addition, the option of coupling with the complex water quality model of SP 3 will be examined. For the calibration of the local scale model we will carry out local field measurements regarding the degradation together with the Vietnamese partners. The integrated model should be able to predict the pollution in the Thi Vai River in dependency of the remediation potential of mangrove forests. The results are required for the development and quantification of protection technologies, which can be quantified with the Management system.
Nguyen, H.A., Richter, O., Huynh, D.H., Nguyen, K.L., Kolb, M., Nguyen, V.P., Bao, T.T. (2014): Accumulation of contaminants in mangrove species Rhizophora apiculate along Thi Vai River in the South of Vietnam. In: Meon G., Pätsch M., Phuoc N.V., Quan N.H. (eds.) (2014): EWATEC-COAST: Technologies for Environmental and Water Protection of Coastal Zones in Vietnam. Contributions to 4th International Conference for Environment and Natural Resources, ICENR 2014. Cuvillier, Göttingen, Germany. ISSN: 2363-7218. ISBN: 978-3-95404-852-6.
Richter, O., Nguyen, H.A., Nguyen, K.L., Nguyen, V.P., Biester, H., Schmidt, P. (2016): Phytoremediation by mangrove trees: Experimental studies and model development. Chemical Engineering Journal 294, 389-399; https://doi.org/10.1016/j.cej.2016.03.017
Nguyen, H.A., Richter, O. (2016): Multiscale modeling of pollutant uptake by mangroves. The International Journal of Multiphysics 10 (2), 157-176
Nguyen, K.L., Nguyen, H.A., Richter, O., Pham, M.T., Nguyen, V.P. (2017): Ecophysiological responses of young mangrove species Rhizophora apiculata (Blume) to different chromium contaminated environments. Science of the Total Environment 574, 369-380; https://doi.org/10.1016/j.scitotenv.2016.09.063