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Assessing Environmental Flow Targets Using Pre-Settlement Land Cover: A Swat Modeling Application, Sean J. Zeiger, Jason A. Hubbart
Assessing Environmental Flow Targets Using Pre-Settlement Land Cover: A Swat Modeling Application, Sean J. Zeiger, Jason A. Hubbart
Faculty & Staff Scholarship
Determining environmental flow requirements to sustain aquatic ecosystem health remains a challenge. The purpose of this research was to quantify the extent of current flow alterations relative to baseline hydrologic conditions of a simulated historic flow regime prior to anthropogenic flow disturbance (i.e., pre-settlement flows). Results allowed assessment of the efficacy of environmental flow targets based on pre-settlement land cover in a contemporary mixed-land-use catchment (i.e., urban, agricultural, and forested). Pre-settlement flows were simulated using the Soil and Water Assessment Tool (SWAT). Pre-settlement land cover, based on soil physical characteristics, was used to simulate pre-settlement flows with the SWAT model. …