Hydrological and Hydrochemical Drivers of Solute Export from Watersheds

Dear Colleagues,

This Special Issue of Water focuses on the interdisciplinary aspects of studies of solute export from watersheds. Solute export is the process of transporting soluble material from the land surface to aquatic environments, such as streams, rivers, lakes, reservoirs or the ocean. Soluble materials include dissolved chemicals, nutrients, radionuclides, trace metals and other chemical or microbial constituents, some of which may be toxic pollutants. The process of solute export is driven by surface and subsurface runoff or groundwater flow, and is dependent on the watershed chemical composition.

Tracer methods are useful for studying solute export processes, as they can be used to identify the sources of runoff and the interaction of runoff and groundwater at the catchment scale. Natural tritium migration research is an important example of a tracer method. Radionuclides accidentally released into the environment from nuclear facilities are also used as tracers that can interact with sediments.

The development of water flow and mass transport modeling tools has enabled analysis of the role of hydrological and hydrochemical drivers of solute export from watersheds. These tools vary from balance models that predict concentration–discharge (C–Q) relationships to complex numerical models of hydrologic and biogeochemical processes, which have been developed over the last decade.

In this Special Issue, we welcome articles that present results from field, laboratory and modeling studies on solute export from watersheds and new findings on the various hydrologic and biogeochemical factors driving these processes.

Dr. Maksym Gusyev
Prof. Dr. Mark Zheleznyak
Dr. Boris Faybishenko
Guest Editors

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