Peter M. Wohlgemuth
4955 Canyon Crest Drive
Riverside, CA 92507
Wohlgemuth is a hydrologist who studies postfire erosion and treatment strategies.
In the future, Wohlgemuth — who enjoys working outdoors on real-world problems — will continue to quantify and model postfire sediment changes for planning and risk assessment.
In one study, Wohlgemuth found that prescribed fires reduce the soil erosion from subsequent wildfires, suggesting that prescribed burns may be a sediment management tool in addition to helping to manage vegetation or reduce fuel buildup. Wohlgemuth found that prescribed fires reduced postfire cleanup costs and, perhaps, even the need for expensive soil retention structures.
In a second study, Wohlgemuth discovered that seeding with ryegrass is not an effective postfire erosion control measure, although the grass species has long been a standard erosion control plant in California. Wohlgemuth's field tests revealed that ryegrass replaced, rather than augmented, the cover of postfire native regrowth and was no better at reducing erosion than unseeded controls. His findings helped to steer postfire management response away from seeding as an erosion-control technique.
- American Geophysical Union, Member
- Association for Fire Ecology, Member
Publications & Products
- Robichaud, Peter R.; Wagenbrenner, Joseph W.; Lewis, Sarah A.; Ashmun, Louise E.; Brown, Robert E.; Wohlgemuth, Peter M. 2013. Post-fire mulching for runoff and erosion mitigation; Part II: Effectiveness in reducing runoff and sediment yields from small catchments.
- Hubbert, Ken R.; Wohlgemuth, Peter M.; Beyers, Jan L. 2012. Effects of hydromulch on post-fire erosion and plant recovery in chaparral shrublands of southern California.
- Hubbert, Ken R.; Wohlgemuth, Pete M.; Beyers, Jan L.; Narog, Marcia G.; Gerrard, Ross. 2012. Post-Fire soil water repellency, hydrologic response, and sediment yield compared between grass-converted and chaparral watersheds.
- Wohlgemuth, Pete; Beyers, Jan; Robichaud, Pete. 2011. The effectiveness of aerial hydromulch as an erosion control treatment in burned chaparral watersheds.
- Wohlgemuth, P. M.; Beyers, J. L.; Hubbert, K. R. 2009. Rehabilitation strategies after fire: the California, USA experience.
- Wohlgemuth, Pete. 2009. San Dimas Experimental Forest, California—a giant outdoor hydrologic lab.
- Robichaud, P. R.; Wagenbrenner, J. W.; Brown, R. E.; Wohlgemuth, P. M.; Beyers, J. L. 2008. Evaluating the effectiveness of contour-felled log erosion barriers as a post-fire runoff and erosion mitigation treatment in the western United States.
- Hubbert, K. R.; Wohlgemuth, P. M.; Preisler, H. K. 2008. Pre- and postfire distribution of soil water repellency in a steep chaparral watershed.
- Wohlgemuth, P. M.; Hubbert, K. R. 2008. The effects of fire on soil hydrologic properties and sediment fluxes in chaparral steeplands, southern California.
- Loomis, John; Wohlgemuth, Pete; González-Cabán, Armando; English, Donald. 2003. Economic benefits of reducing fire-related sediment in southwestern fire-prone ecosystems.
- Beyers, Jan L.; Wakeman, Carla D.; Wohlgemuth, Peter M.; Conard, Susan G. 1998. Effects of post-fire grass seeding on native vegetation in southern California chaparral.