Impacts of Vegetative Practices on Suspended Sediment from Watersheds of Arizona

Lopes, Vicente L.; Ffolliott, Peter F.; Baker, Malchus B.

doi:10.1061/(asce)0733-9496(2001)127:1(41)

Cited by 14 publications

(6 citation statements)

References 21 publications

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“…Streamflow from watersheds in the Colorado River Basin is often a ''stormflow response'' following high intensity, shortduration events (Lopes et al, 2001;Brooks et al, 2003). The water table is usually below the bed of the stream in the watershed situations, and, therefore, there is no perennial flow.…”

Section: Stormflowmentioning

confidence: 99%

Streamflow responses to vegetation manipulations along a gradient of precipitation in the Colorado River Basin

Zou

Ffolliott

Wine

2010

Forest Ecology and Management

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Section: Stormflowmentioning

confidence: 99%

Streamflow responses to vegetation manipulations along a gradient of precipitation in the Colorado River Basin

Zou

Ffolliott

Wine

2010

Forest Ecology and Management

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“…Sediment rating parameters are known to fluctuate seasonally in response to variable rain intensities and runoff sources (Walling, 1977;Lopes et al, 2001;Morehead et al, 2003), though this has not been thoroughly considered in the context of wildfire. We have identified two main hydrologic periods that influence our sediment data: summer convective storms and winter frontal storm 2004-2005 seasons generate a single rating line, showing insignificant change in time after the fire.…”

Section: Seasonality and Temporal Variations In Post-fire Recoverymentioning

confidence: 99%

“…Sediment rating parameters are sensitive to various natural and anthropogenic activities, including floods 1415 (Syvitski et al, 2000), fire (Moody and Martin, 2001), glacier motion (Willis et al, 1996), vegetation management practices (Lopes et al, 2001), and land use change (Kuhnle et al, 1996). Prior studies that employed rating parameters for post-fire erosion analysis in the western USA found the following trends (Table I).…”

Section: Sediment Rating Curvesmentioning

confidence: 99%

Post‐wildfire changes in suspended sediment rating curves: Sabino Canyon, Arizona

Desilets

Nijssen

Ekwurzel

et al. 2006

Hydrological Processes

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Abstract:Wildfire has been shown to increase erosion by several orders of magnitude, but knowledge regarding short-term variations in post-fire sediment transport processes has been lacking. We present a detailed analysis of the immediate post-fire sediment dynamics in a semi-arid basin in the southwestern USA based on suspended sediment rating curves. During June and July 2003, the Aspen Fire in the Coronado National Forest of southern Arizona burned an area of 343 km 2 . Surface water samples were collected in an affected watershed using an event-based sampling strategy. Sediment rating parameters were determined for individual storm events during the first 18 months after the fire. The highest sediment concentrations were observed immediately after the fire. Through the two subsequent monsoon seasons there was a progressive change in rating parameters related to the preferential removal of fine to coarse sediment. During the corresponding winter seasons, there was a lower supply of sediment from the hillslopes, resulting in a time-invariant set of sediment rating parameters. A sediment mass-balance model corroborated the physical interpretations. The temporal variability in the sediment rating parameters demonstrates the importance of storm-based sampling in areas with intense monsoon activity to characterize post-fire sediment transport accurately. In particular, recovery of rating parameters depends on the number of high-intensity rainstorms. These findings can be used to constrain rapid assessment fire-response models for planning mitigation activities.

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“…Elevations range from ~1,000 to 2,600 m above sea level and are characterized by significant canyons incised into the Colorado Plateau. Land cover varies with elevation from desert shrub in the lowlands, through pinyon-juniper woodlands, and up to ponderosa pine forests at the higher elevations (e.g., Baker 1999; Lopes et al 2001). Soils are composed primarily of clay, clay loam and loam, developed on basalts and cinders of volcanic origin.…”

Section: Study Watershed and Its Characteristicsmentioning

confidence: 99%

A climate change projection for summer hydrologic conditions in a semiarid watershed of central Arizona

Hawkins

Vivoni

Robles-Morúa

et al. 2015

Journal of Arid Environments

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Potential climate change impacts on summer precipitation and subsequent hydrologic responses in the southwestern U.S. are poorly constrained at present due to a lack of studies accounting for high resolution processes. In this investigation, we apply a distributed hydrologic model to the Beaver Creek watershed of central Arizona to explore its utility for climate change assessments. Manual model calibration and model validation were performed using radar-based precipitation data during three summers and compared to two alternative meteorological products to illustrate the sensitivity of the streamflow response. Using the calibrated and Nevertheless, relatively minor changes were obtained in spatially-averaged evapotranspiration.To explain this, we used the simulated hydroclimatological mechanisms to identify that higher precipitation limits radiation through cloud cover leading to lower evapotranspiration in regions with orographic effects. This challenges conventional wisdom on evapotranspiration trends and suggest that a more nuanced approach is needed to communicate hydrologic vulnerability to stakeholders and decision-makers in this semiarid region.

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Impacts of Vegetative Practices on Suspended Sediment from Watersheds of Arizona

Cited by 14 publications

References 21 publications

Streamflow responses to vegetation manipulations along a gradient of precipitation in the Colorado River Basin

Streamflow responses to vegetation manipulations along a gradient of precipitation in the Colorado River Basin

Post‐wildfire changes in suspended sediment rating curves: Sabino Canyon, Arizona

A climate change projection for summer hydrologic conditions in a semiarid watershed of central Arizona

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