Examining the flow regime alteration and its potential impacts to freshwater ecosystems under changing climate conditions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper uses observed daily streamflow data to examine the flow regime alteration and how these changes might potentially affect freshwater ecosystems. The earth surface temperature has been observed gradually increase and associate with precipitation and atmospheric moisture changes over space and time. Climate induced flow regime changes are examined by Indicators of Hydrologic Alteration approach. The annual extreme water conditions (1-, 3-, 7-, 30-, 90- day annual minima or maxima) reveal larger alteration from analyzing twenty-three gauging stations throughout Taiwan. More severe flood and drought events happen in the period of after 1991 than the period of 1961-1990. Frequency and duration of the flood and drought events also reveal high fluctuation. Flow regime is being altered and is going to continue into the foreseeable future. The aquatic organisms not only need to defend themselves from the anthropogenic damage to the river system but also are facing the on-going threat from thermal and flow regime altering under changing climate. This paper tries to raise this issue to allow water resources managers taking some precautionary measures to reduce the cumulative effects from anthropogenic influence and changing climate.

Original languageEnglish
Title of host publicationProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009
Subtitle of host publicationGreat Rivers
Pages4864-4874
Number of pages11
DOIs
Publication statusPublished - 2009 Oct 26
EventWorld Environmental and Water Resources Congress 2009: Great Rivers - Kansas City, MO, United States
Duration: 2009 May 172009 May 21

Publication series

NameProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers
Volume342

Other

OtherWorld Environmental and Water Resources Congress 2009: Great Rivers
CountryUnited States
CityKansas City, MO
Period09-05-1709-05-21

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)

Fingerprint Dive into the research topics of 'Examining the flow regime alteration and its potential impacts to freshwater ecosystems under changing climate conditions'. Together they form a unique fingerprint.

  • Cite this

    Suen, J-P. (2009). Examining the flow regime alteration and its potential impacts to freshwater ecosystems under changing climate conditions. In Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers (pp. 4864-4874). (Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers; Vol. 342). https://doi.org/10.1061/41036(342)491