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Twentieth Century Channel Change Of The Green River In Canyonlands National Park, Utah, Alexander E. Walker
Twentieth Century Channel Change Of The Green River In Canyonlands National Park, Utah, Alexander E. Walker
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Since the early 20th century, river channels of the Colorado River basin have narrowed, decreasing available riparian and aquatic habitat. Changes are considered to be the result of three major factors: wide-spread water development, increasing hydroclimate variability and the invasion of non-native tamarisk (Tamarix spp.), altering flow regime and sediment supply. Different studies have reached different conclusions about the relative roles of flow regime, sediment supply and tamarisk in causing narrowing.
I investigated channel change in the lower Green River within Canyonlands National Park to describe channel changes in the 20th century and understand the roles …