Reaeration in small mountain streams Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/df65vb71z

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  • Fishery biologists and watershed management specialists have recently begun to investigate the pollutional threat posed by organic debris left in or near the forest watercourses. Oxygen content in some streams has fallen below the limits required for fish survival. The biochemical oxygen demand exerted by the debris and the reaeration potential of the stream must be determined to predict the effects of debris accumulation on dissolved oxygen. The purpose of this study is to specify equations suitable for predicting reaeration in small, turbulent streams and identify the factors affecting reaeration under these circumstances. Reaeration rates in a mountain stream were determined by depleting the oxygen content at one point with sodium sulfite and then measuring the changes in dissolved oxygen as the deaerated water moved downstream. These reaeration rates were then correlated with the hydraulic characteristics of the stream.
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  • Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 B+W), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 3.1 was used for pdf compression and textual OCR.
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  • description.provenance : Made available in DSpace on 2008-11-25T18:14:15Z (GMT). No. of bitstreams: 1 Holtje, Ralph Jr_1971_PhD.pdf: 996229 bytes, checksum: 96fc320db39217944fe1d7a2acd7968e (MD5)
  • description.provenance : Submitted by Anna Opoien (aoscanner@gmail.com) on 2008-09-12T21:55:21Z No. of bitstreams: 1 Holtje, Ralph Jr_1971_PhD.pdf: 996229 bytes, checksum: 96fc320db39217944fe1d7a2acd7968e (MD5)
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2008-11-25T18:14:14Z (GMT) No. of bitstreams: 1 Holtje, Ralph Jr_1971_PhD.pdf: 996229 bytes, checksum: 96fc320db39217944fe1d7a2acd7968e (MD5)
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2008-11-25T18:11:15Z (GMT) No. of bitstreams: 1 Holtje, Ralph Jr_1971_PhD.pdf: 996229 bytes, checksum: 96fc320db39217944fe1d7a2acd7968e (MD5)

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