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Showing 1 to 6 of 6 for “"watershed approach"”.
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An Examination of the Reference Watershed Approach for TMDLs with Benthic Impairments
This research addresses the Reference Watershed Approach (RWA) in the TMDL process for benthic impairments. In the RWA, do different land use sources (DOQQ and NLCD) or use of alternative water quality models (GWLF and SWAT) result in different stressor loadings? Is there a difference in stressor …
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The impact of environmental change on the Tualatin River cleanup — a case study of policy responses to climate change
… habitat. These efforts were shaped by EPA's ""watershed approach,"" developed to improve non-point source water quality management. The Clean Water Act itself does not provide the same rigorous regulatory structure for non-point source pollution as it does for point source pollution. In the …
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Comparing Two Methods for Developing Local Sediment TMDLs to Address Benthic Impairments
… often determined using a non-impaired reference watershed, i.e., the reference watershed approach (RWA). The RWA has historically been used in Virginia to establish TMDL target sediment loads because there is no numeric ambient water quality criterion for sediment. The difference between the …
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A River of Voices: Confluences and Cross-Currents in the Discourse of the Colorado River
… argues that the Colorado River and its watershed face a crisis of representation as privileged nineteenth-century myths portraying the American West as a frontier, garden, and wilderness have limited an understanding of what and whom the river is for. It examines the contribution of …
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Infrastructural Landscapes: The Technopolitics of Watershed Planning in Asia
… dissertation examines the technopolitics of watershed management in shaping infrastructure and landscapes in Asia. Technopolitics describes the co-production of power and technologies and how these processes manifest in the physical and social world. Using this conceptual framework, each …
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Fate of water and nitrate using drainage water management on tile systems in East-Central Illinois
… farm located in the Upper Salt Fork River Watershed in central Illinois to evaluate DWM from 2011 to 2013. The overall objective was to determine the fate of water and nitrate that were held back in the field when DWM was applied. A paired watershed approach was used to compare the …