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Response of western Oregon stream temperatures to contemporary forest management

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dc.creator Groom, Jeremiah D.
dc.creator Dent, Liz
dc.creator Madsen, Lisa J.
dc.creator Fleuret, Jennifer
dc.date.accessioned 2011-09-16T23:42:46Z
dc.date.available 2011-09-16T23:42:46Z
dc.date.issued 2011
dc.identifier.citation Groom, J. D., Dent, L., Madsen, L. J., & Fleuret, J. (2011). Response of western Oregon stream temperatures to contemporary forest management. Forest Ecology and Management, 1618-1629. doi:10.1016/j.foreco.2011.07.012 en_US
dc.identifier.uri http://hdl.handle.net/1957/23358
dc.description This is the author's peer-reviewed final draft as accepted by the publisher. The final version is copyrighted by Elsevier and can be found at the Forest Ecology and Management website: http://www.elsevier.com/wps/find/journaldescription.cws_home/503310/description
dc.description.abstract A replicated before–after-control-impact study was used to test effectiveness of Oregon’s (USA) riparian protection measures at minimizing increases in summer stream temperature associated with timber harvest. Sites were located on private and state forest land. Practices on private forests require riparian management areas around fish-bearing streams; state forest’s prescriptions are similar but wider. Overall we found no change in maximum temperatures for state forest streams while private sites increased preharvest to post-harvest on average by 0.7 °C with an observed range of response from -0.9 to 2.5 °C. The observed increases are less than changes observed with historic management practices. The observed changes in stream temperature were most strongly correlated with shade levels measured before and after harvest. Treatment reach length, stream gradient, and changes in the upstream reach stream temperature were additionally useful in explaining treatment reach temperature change. Our models indicated that maximum, mean, minimum, and diel fluctuations in summer stream temperature increased with a reduction in shade, longer treatment reaches, and low gradient. Shade was best predicted by riparian basal area and tree height. Findings suggest that riparian protection measures that maintain higher shade such as the state forests were more likely to maintain stream temperatures similar to control conditions. en_US
dc.description.sponsorship The Oregon Department of Forestry Private Forest Division and State Forest Division provided substantial project funding, conducted data collection, developed the study design, and assisted in the analysis, interpretation of data, writing of the report, and decision to submit the work for publication. This Project has been funded wholly or in part by the United States Environmental Protection Agency (EPA) under assistance agreement C9-00045105 to the Oregon Department of Environmental Quality. The contents of this document do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. The EPA only provided financial support; ODEQ additionally provided a representative to serve on the project’s External Review Committee. en_US
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.relation Forest Explorer en_US
dc.relation.ispartofseries Forest Ecology and Management en_US
dc.relation.ispartofseries (2011) en_US
dc.subject Riparian buffer en_US
dc.subject Stream temperature en_US
dc.subject Mixed-effects en_US
dc.subject Shade en_US
dc.title Response of western Oregon stream temperatures to contemporary forest management en_US
dc.type Article en_US
dc.description.peerreview yes en_US
dc.identifier.doi 10.1016/j.foreco.2011.07.012

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