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Hydrologic alterations in the Wabash River watershed, USA by Mark Pyron; Klaus Neumann is a Environmental Science article available to read on EtoBox.
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## Abstract Flow alteration of streams from anthropogenic impacts is ubiquitous worldwide. In this paper, we examine flow alteration in a single watershed, the Wabash River and suggest potential impacts on aquatic assemblages. The Indicators of Hydrologic Alteration (IHA) software was used to evaluate hydrological variables generated from daily discharge data of 80 USGS gauging stations, during the past several decades. We used the approach of regressions of hydrological variables against time to identify hydrologic change. An average of 6.9 hydrologic variables (of 33 variables) were significantly altered at each station, and stations with larger watersheds had an increased number of altered variables. A principal components (PC) analysis of altered hydrologic variables resulted in three of four PC axes that were correlated with watershed area. Significant results were: (1) larger streams were more likely to have hydrologic alteration than smaller streams; (2) streams with upstream dams had increased minimum flows for 1‐, 3‐, 7‐ and 30‐day intervals, decreased maximum flows for 1‐, 3‐, 7‐ and 30‐day intervals, increased fall rates, decreased summer monthly flows and decreased high
Who reads Hydrologic alterations in the Wabash River watershed, USA?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Mark Pyron; Klaus Neumann
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 1535-1459)
- Published
- 2008
- Language
- EN
- Field
- Environmental Science (Physical Sciences)