It is difficult to accurately identify and manage the paths of nonpoint source (NPS) pollution in rural watersheds because their discharge patterns vary depending on season, region, agricultural characteristics. In this study, flow water quality during rainfall events were monitored Songya watershed, an impaired, area South Korea. A method identifying priority management areas was proposed thro...

Purpose Mercury (Hg) is a naturally occurring element and mately 80% of the anthropogenic sources of Hg are emissions of elemental Hg to air, primarily from fossil fuel combustion, mining, smelting, chlor-alkali plants, and from incineration of solid wastes (Hamasaki et al. 1995; Stein et al. 1996). Another 15% of anthropogenic Hg loading to the land is the result of direct application of ferti...

The water quality of the Dongjin River deteriorates during irrigation period because supply river maintenance to main is cut off by mass intake agricultural weirs located in midstream regions. A physics-based model and a data-driven were used predict under various hydrological conditions. Hydrological Simulation Program–Fortran (HSPF), which model, was constructed simulate biological oxygen dem...

Economic models and watershed provide useful results, but when seeking to integrate these systems, the temporal units typically utilized by must be reconciled. A hydrologic-economic modeling framework is built couple Hydrological Simulation Program-Fortran (HSPF), representing system, with Rectangular Choice-of-Technology (RCOT) model, an extension of basic input-output (I-O) model. This implem...