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Keyword: debris flows

After Fire: Landscape toolkit for the Southwest

Science Spotlights Posted on: July 16, 2019
Wildfires, an important natural disturbance in southwestern ecosystems, can present challenges to resource managers, communities, and private landowners when they burn areas subject to post-fire flooding and erosion. Many government agencies and research institutions have developed science and management tools for estimating post-fire effects and mitigating risks in burned landscapes. We assessed the utility of currently available tools and resources for application on non-federal lands and by non-federal user groups.

Physical vulnerabilities from wildfires: Flames, floods, and debris flows

Publications Posted on: July 08, 2019
Humans live in or adjacent to wildland ecosystems that burn periodically and are part of nearly all ecosystems that are in the pyrosphere. There are many hazards posed by wildfire and certain consequences of living in these ecosystems. Most are associated with wildfire, but the increased use of prescribed fire is an issue because of associated risks with human attempts to manage ecological goals.

Potential postwildfire debris-flow hazards - a prewildfire evaluation for the Sandia and Manzano Mountains and surrounding areas, central New Mexico

Publications Posted on: March 03, 2015
Wildfire can drastically increase the probability of debris flows, a potentially hazardous and destructive form of mass wasting, in landscapes that have otherwise been stable throughout recent history.

Geomorphic aspects of post-fire soil erosion - Schultz Fire 2010

Publications Posted on: September 14, 2012
The summer of 2010 brought wildfires and near record monsoon rains to northern Arizona, USA, which generated debris flows and floods that caused extensive damage. The human-caused Schultz Fire on the Coconino National Forest northeast of Flagstaff was the largest wildfire in Arizona during 2010, burning 6,100 ha between June 20th and 30th.

Rainfall and geomorphic aspects of post-fire soil erosion - Schultz Fire 2010

Publications Posted on: May 09, 2012
The human-caused Schultz Fire near Flagstaff, Arizona burned 6,100 ha (15,075 acres) on the Coconino National Forest between June 20th and 30th, 2010. Ignited by an abandoned campfire, high winds drove the fire over approximately 60% of the total area burned during the first 12 hours (U.S. Forest Service, 2010).

Late Holocene geomorphic record of fire in ponderosa pine and mixed-conifer forests, Kendrick Mountain, northern Arizona, USA

Publications Posted on: August 02, 2011
Long-term fire history reconstructions enhance our understanding of fire behaviour and associated geomorphic hazards in forested ecosystems. We used 14C ages on charcoal from fire-induced debris-flow deposits to date prehistoric fires on Kendrick Mountain, northern Arizona, USA. Fire-related debris-flow sedimentation dominates Holocene fan deposition in the study area.

Persistent effects of wildfire and debris flows on the invertebrate prey base of rainbow trout in Idaho streams

Publications Posted on: March 17, 2011
Wildfire and debris flows are important physical and ecological drivers in headwater streams of western North America. Past research has primarily examined short-term effects of these disturbances; less is known about longer-term impacts. We investigated wildfire effects on the invertebrate prey base for drift-feeding rainbow trout (Oncorhynchus mykiss, Walbaum) in Idaho headwater streams a decade after wildfire.

Influences of wildfire and channel reorganization on spatial and temporal variation in stream temperature and the distribution of fish and amphibians

Publications Posted on: December 17, 2008
Wildfire can influence a variety of stream ecosystem properties. We studied stream temperatures in relation to wildfire in small streams in the Boise River Basin, located in central Idaho, USA.