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Alsea Watershed Study 1959-1972 Public Deposited

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https://ir.library.oregonstate.edu/concern/datasets/c821gr90d

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  • To investigate the effects of logging, three small watersheds in the Alsea River basin on the west slope of the Oregon Coast Range were selected for study. This was an interdisciplinary investigation to evaluate the influence of specific logging methods on stream regimen and on aquatic resources. The study plan involved (1) clear-cut logging one watershed [Needle Branch Creek]; (2) a second watershed with smaller, more spaced clear cuts and a riparian stream buffer left intact [Deer Creek]; and (3) a third watershed left uncut as a control to evaluate changes in the logged watersheds [Flynn Creek]. Data were collected on all three watersheds for a period of 7 years to define the pre-logging calibration. Road building and logging occurred in 1966, with continued monitoring through 1972. The U.S. Geological Survey conducted streamflow, water temperature, and sediment studies from Water Year (WY) 1959 through WY197. Data in this project are the sediment sample results transferred from the original laboratory data sheets.
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Hydrologic Unit Code
  • 1417100205030201
  • 17100205030201
  • 171002050302
  • 17100205
  • 1710020503
  • 17100205030202
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