Hydrological and environmental effects of agricultural and urban activities in a small Swedish river basin

agricultura agriculture agua de mar aguas residuales azote calidad del agua carga contaminante charge polluante ciencias forestales cours d'eau cursos de agua eau de mer eau de ruissellement escorrentia foresterie forestry heavy metals hidrologia hydrologie hydrology leaching lessivage du sol metales pesados modele modelos models nitrogen pollutant load pollution des mers precipitation procesos de transporte en el suelo rivers runoff sea pollution sea water soil transport processes suecia sweden terre humide transport dans le sol urban areas wastewater water quality wetlands zonas urbanas zone urbaine