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Time: 7:00 pm
Water Resource Club Presents Alison O'Dowd's lecture:
Initial response of step-pool streams to wildfire
Knowledge of the hydrological and geomorphological impacts of wildfire has advanced significantly over the past 50 years. Yet, the effects of wildfire remain difficult to predict because they vary with characteristics of the fire and watershed affected, as well as intensities and spatial extent of precipitation. These challenges are especially magnified in deciphering the response of step-pool streams that characterize steep, rugged terrain. This study documents the response of step-pool streams within Pike National Forest, Colorado, following the 2012 Waldo Canyon Fire, one of several recent wildfires that spread across the Colorado Front Range. Physical and biological stream data were collected immediately following the burn and 1 year post-fire. Repeat measurements following the first geomorphologically significant event in July 2013 revealed a variable response. These results underscore the difficulties of generalizing and predicting the impacts of wildfire, as well as the importance of long-term repeated observations.
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