Interaction between surface water and groundwater and its effect on ecosystem and biogeochemical cycle

Abstract

The author has so far developed the National Integrated Catchment-based Eco-hydrology (NICE) model, which takes into account a complex interaction between surface water and groundwater. He has evaluated this interaction and its effect on ecosystem and biogeochemical cycle by using this advanced model. In this paper, case studies of model application to Kushiro Wetland, Lake Kasumigaura, Tokyo Metropolitan Area, and China are overviewed from the view point of this interaction. Further improvement of this evaluation by using an integrated assessment system of multiple methods would be powerful for solving intertwined environmental pollution.