2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/24/2018 | 10:00 AM - 10:15 AM | RIPARIAN SHADE CONTROLS ON STREAM TEMPERATURE NOW AND IN THE FUTURE ACROSS TRIBUTARIES OF THE COLUMBIA RIVER, USA | 330 B
RIPARIAN SHADE CONTROLS ON STREAM TEMPERATURE NOW AND IN THE FUTURE ACROSS TRIBUTARIES OF THE COLUMBIA RIVER, USA
Future climates may warm stream temperatures altering aquatic communities and threatening socioeconomically-important species. These impacts vary across large spatial extents and require special evaluation tools. Statistical stream network models (SSNs) account for spatial autocorrelation in rivers and are suited to evaluate stream parameters affected by climate change. SSNs predicted mean August stream temperature for tributaries of the mainstem Columbia River (downstream of Snake River) under three climate scenarios (present, 2040, 2080). These climate scenarios were crossed with three channel shading levels including (1) topographic – no riparian vegetation, (2) present vegetation shade, and (3) potential vegetation shade – maximum height of riparian vegetation to evaluate the use of riparian restoration to offset forecast climate changes. The mean August temperature of all 191 tributary outflows was below the minimum cold water refugia (CWR) threshold of 20°C for three scenarios (present climate/present shade, present climate/potential shade, 2040 climate/potential shade); other scenarios were 1-2°C above. Relative to the present climate/shade scenario, the percent of tributaries below the CWR threshold in 2040 drops 35%, while 2040 climate with potential shading drops 6%. This suggests riparian shading regionally could maintain Columbia River CWR in 2040.
- Restoration
- Riparian
- Climate Change
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Matthew Fuller
(), ORISE postdoc with US EPA/Atlantic Ecology Division, matthew.robert.fuller@gmail.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Naomi Detenbeck
(), U.S. EPA/ORD/NHEERL Atlantic Ecology Division, Detenbeck.Naomi@epa.gov;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Peter Leinenbach
(), US EPA, leinenbach.peter@epa.gov;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Rochelle Labiosa
(), US Environmental Protection Agency, labiosa.rochelle@epa.gov;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Daniel Isaak
(), Research and Development, United States Forest Service, Boise, Idaho 83702, disaak@fs.fed.us;
ASHA DISCLOSURE:
Financial -
Nonfinancial -