In Green-Digi-Basin, we will use multidisciplinary approaches, novel technologies and smart solution in close collaboration with different stakeholders and end-users to provide crucial information for sustainable and resilient water resources management. The project is strongly connected to the existing competence center a.k.a. HYDRO-RDI-Network. We are aiming to find the most effective green solutions for the boreal-subarctic river basins and improve current calculations for river connectivity, nutrient and carbon loads to surface water systems from different land use. We further consider land use scenarios including various types of green solutions (e.g. peatland restoration, wetland, gypsum treatment) for predicting water volume and quality in the river basin scale.