DEBRIS-FLOW EROSION CONTROL TREATMENTS AFTER WILDFIRE : AN EVALUATION OF EROSION CONTROL EFFECTIVENESS

ISBN-13: 9783639160611 / Angielski / Miękka / 2009 / 180 str.

Victor DeWolfe

Opis

Erosion control techniques such as seeding, mulching and installation of log erosion barriers (LEBs) are popular methods for reducing erosion of hillslope material from steep terrain burned by wildfire. These types of erosion control can reduce dry ravel and the erosive power of runoff induced by precipitation on bare burned slopes. The heavy runoff produces frequent rilling and sheetwash erosion, which conveys water and fine soil material to the main channel, both of which are integral to debris-flow initiation and increases in volume through sediment bulking. Often the three treatment techniques are used in combination to achieve optimal erosion control. However, the methods by which the treatments are applied, and the relative concentrations applied must be optimized for effective erosion control in a particular area.

O autorze

Victor deWolfe is a geological engineer in Colorado providing
consultation for dam and reservoir investigations and
groundwater resources. He also specializes in GIS applications
as well as geological hazard investigations and mitigation
design.

Dr. Paul Santi is a geological engineering professor and Mr.
deWolfe's M.S. thesis advisor.