Cottonwood evaluation following environmental flow implementation along the Waterton River, Alberta

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dc.contributor.authorFoster, Stephen
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorRood, Stewart B.
dc.date.accessioned2016-05-05T17:43:07Z
dc.date.available2016-05-05T17:43:07Z
dc.date.issued2016
dc.degree.levelMastersen_US
dc.description.abstractAlberta’s Waterton River was dammed in 1964 and to avoid a collapse of downstream riparian woodlands as had occurred along the nearby St. Mary River, an Environmental Flow regime was implemented in 1991. This involved an increase in the minimum flow and flow ramping, gradual recession after spring peaks. This study assessed the consequences on the riparian woodlands by analyzing aerial photographs and assessing hydrological changes. Additionally, field research confirmed the persistence of the cottonwoods and quantified their growth characteristics through analyses of tree rings. Riparian cottonwood area remained relatively unchanged throughout the study interval, indicating survival after damming. There has been progressive colonization after damming, cottonwood growth benefitted from the Environmental Flow regime and analyses indicated that the increase in minimum flow was particularly beneficial.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/4476
dc.language.isoen_CAen_US
dc.proquest.subject0768en_US
dc.proquest.subject0329en_US
dc.proquest.subject0388en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta : University of Lethbridge, Dept. of Biologyen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectcottonwood healthen_US
dc.subjectminimum flow criterionen_US
dc.subjectramping flowsen_US
dc.subjectriparianen_US
dc.subjectriver managementen_US
dc.titleCottonwood evaluation following environmental flow implementation along the Waterton River, Albertaen_US
dc.typeThesisen_US
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