Publications (Clicking on the reprint icon will take you to the publication reprint.)

Hydrologic and erosion responses of sagebrush steppe following juniper encroachment, wildfire, and tree cutting - (Peer Reviewed Journal)

Pierson Jr, F.B., Williams, C.J., Hardegree, S.P., Clark, P., Kormos, P.R., Al-Hamdan, O.Z. 2013. Hydrologic and erosion responses of sagebrush steppe following juniper encroachment, wildfire, and tree cutting. Rangeland Ecology and Management. 66:274-289.

Risk assessment of erosion from concentrated flow on rangelands using overland flow distribution and shear stress partitioning - (Peer Reviewed Journal)

Al-Hamdan, O.Z., Pierson Jr, F.B., Nearing, M.A., Williams, C.J., Stone, J.J., Kormos, P.R., Boll, J., Weltz, M.A. 2013. Risk assessment of erosion from concentrated flow on rangelands using overland flow distribution and shear stress partitioning. Transactions of the ASABE. 56(2):539-548.

Can wildfire serve as an ecohydrologic threshold-reversal mechanism on juniper-encroached shrublands - (Peer Reviewed Journal) - (18-Dec-12)

Simulating the effect of fire on the ARS Reynolds Creek Experimental Watershed - (Government Publication)

Goodrich, D.C., Pierson Jr, F.B., Williams, C.J., Guertin, P., Hernandez, M., Levick, L., Burns, S., Jolley, L., Weltz, M.A. 2012. Simulating the effect of fire on the ARS Reynolds Creek Experimental Watershed. CEAP Science Note.

Wildfire as a mechanism to reverse ecohydrologic thresholds in juniper-encroached shrublands - (Abstract Only)

Williams, C.J., Pierson, F.B., Al-Hamdan, O.Z., Hardegree, S.P., Clark, P.E., and Kormos, P.R. 2012. Wildfire as a mechanism to reverse ecohydrologic thresholds in juniper-encroached shrublands. Presented at the American Geophysical Union Annual Fall Meeting, December 3-7, 2012, San Francisco, CA.

Rainfall and sheet power equation for interrill erosion on steep hillslope - (Abstract Only)

Shin, S.S., Park, S.D., Pierson, F.B., Al-Hamdan, O.Z., and Williams, C.J. 2012. Rainfall and sheet power equation for interrill erosion on steep hillslope. Presented at the American Geophysical Union Annual Fall Meeting, December 3-7, 2012, San Francisco, CA.

Modeling overland erosion on disturbed rangeland - (Abstract Only)

Al-Hamdan, O.Z., Hernandez, M., Pierson, F.B., Nearing, M., Stone, J.J., Williams, C.J., Boll, J., and Weltz, M. 2012. Modeling overland erosion on disturbed rangeland. Presented at the American Geophysical Union Annual Fall Meeting, December 3-7, 2012, San Francisco, CA.

Concentrated flow erodibility for physically-based erosion models: temporal variability in disturbed and undisturbed rangelands - (Peer Reviewed Journal)

Al-Hamdan, O.Z., Pierson Jr, F.B., Nearing, M.A., Williams, C.J., Stone, J.J., Kormos, P.R., Boll, J., Weltz, M.A. 2012. Concentrated flow erodibility for physically-based erosion models: temporal variability in disturbed and undisturbed rangelands. Water Resources Research. DOI: 10.1029/2011WR011464.

Hydrologic response of sagebrush steppe to woodland encroachment and subsequent tree removal: implications for assessing sagebrush steppe hydrologic stability and resiliency - (Abstract Only)

Pierson, F.B., Williams, C.J., Kormos, P.R., and Al-Hamdan, O.Z. 2012. Hydrologic Response of Sagebrush Steppe to Woodland Encroachment and Subsequent Tree Removal: Implications for Assessing Sagebrush Steppe Hydrologic Stability and Resiliency. In: Abstracts of the 65th Annual Meeting of the Society for Range Management, January 29 - February 3, 2012, Spokane, WA.

Hydrologic impacts associated with the increased role of wildland fire across the rangeland-xeric forest continuum of the Great Basin and Intermountain West, USA - (Abstract Only)

Williams, C.J., Pierson, F.B., Robichaud, P.R., Boll, J., and Al-Hamdan, O.Z. 2011. Hydrologic Impacts Associated with the Increased Role of Wildland Fire Across the Rangeland-Xeric Forest Continuum of the Great Basin and Intermountain West, USA. Abstract H31B-1157. Presented at the 2011 Fall Meeting of the American Geophysical Union, December 5-9, 2011, San Francisco, CA.

Estimating concentrated flow erodibility parameters from pre- and post-fire rangeland field data for physically-based erosion modeling - (Abstract Only)

Al-Hamdan, O.Z., Pierson, F.B., Williams, C.J., Nearing, M., Stone, J., Kormos, P.R., Boll, J., and Weltz, M.A. 2011. Estimating concentrated flow erodibility parameters from pre- and post-fire rangeland field data for physically-based erosion modeling. Abstract H31B-1141. Presented at the 2011 Fall Meeting of the American Geophysical Union, December 5-9, 2011, San Francisco, CA.

Characteristics of concentrated flow hydraulics for rangeland ecosystems: implications for hydrologic modeling - (Peer Reviewed Journal)

Al-Hamdan, O.Z., Pierson Jr, F.B., Nearing, M.A., Stone, J.J., Williams, C.J., Moffet, C.A., Kormos, P.R., Boll, J., Weltz, M.A. 2012. Characteristics of concentrated flow hydraulics for rangeland ecosystems: Implications for hydrologic modeling. Earth Surface Processes and Landforms. 37(2):157-168.

Suitability of terrestrial laser scanning for studying surface roughness effects on concentrated flow erosion processes in rangelands - (Peer Reviewed Journal)

Eitel, J.U., Williams, C.J., Vierling, L.A., Al-Hamdan, O.Z., Pierson Jr, F.B. 2011. Suitability of terrestrial laser scanning for studying surface roughness effects on concentrated flow erosion processes in rangelands. Catena. 87(2):398-407.

Hydrologic and erosional impacts associated with an increased role of wildland fire on western rangelands - (Abstract Only)

Williams, C.J., and Pierson, F.B. 2011. Hydrologic and Erosional Impacts Associated with an Increased Role of Wildland Fire on Western Rangelands. In: Abstracts of the Association for Fire Ecology Interior West Conference, November 14-17, 2011, Snowbird, UT.

Surface roughness effects on concentrated flow erosion processes in rangelands pre- and post-fire - (Abstract Only)

Eitel, J., Williams, C.J., Vierling, L., Al-Hamdan, O.Z., and Pierson, F.B. 2011. Surface Roughness Effects on Concentrated Flow Erosion Processes in Rangelands Pre- and Post-Fire. In: Abstracts of the Association for Fire Ecology Interior West Conference, November 14-17, 2011, Snowbird, UT.

Runoff and erosion responses on burned and unburned sagebrush steppe and wooded shrublands in the Great Basin, USA - (Abstract Only)

Pierson, F.B., Williams, C.J., Kormos, P.R., and Al-Hamdan, O.Z. 2011. Runoff and Erosion Responses on Burned and Unburned Sagebrush Steppe and Wooded Shrublands in the Great Basin, USA. In: Abstracts of the Association for Fire Ecology Interior West Conference, November 14-17, 2011, Snowbird, UT.

Fire, plant invasions, and erosion events on western rangelands - (Peer Reviewed Journal)

Pierson Jr, F.B., Williams, C.J., Hardegree, S.P., Weltz, M.A., Stone, J.J., Clark, P. 2011. Fire, plant invasions, and erosion events on western rangelands. Rangeland Ecology and Management. 64(5):439-449. DOI: 10.2111/REM-D-09-00147.1.

Invasion of shrublands by exotic grasses: Ecohydrological consequences in cold vs. warm deserts - (Peer Reviewed Journal)

Wilcox, B.P., Turnbull, L., Young, M.H., Williams, C.J., Ravi, S., Seyfried, M.S., Bowling, D.R., Scott, R.L., Germino, M.J., Caldwell, T.G., and Wainwright, J. 2012. Invasion of shrublands by exotic grasses: Ecohydrological consequences in cold versus warm deserts. Ecohydrology. 5:160-173.

Invasion of shrublands by exotic grasses: Ecohydrological consequences in cold vs. warm deserts - (Peer Reviewed Journal)

Wilcox, B., Turnbull, L., Young, M., Williams, C.J., Ravi, S., Seyfried, M.S., Bowling, D., Scott, R.L., Germino, M., Caldwell, T., Wainwright, J. 2012. Invasion of shrublands by exotic grasses: Ecohydrological consequences in cold vs. warm deserts. Ecohydrology. 5: 160-173.

Shear stress partitioning of overland flow on disturbed and undisturbed rangelands - (Proceedings)

Al-Hamdan, O.Z., Pierson, F.B., Nearing, M.A., Stone, J.J., Williams, C.J., Kormos, P.R., Boll, J., and Weltz, M.A. (2011) “Shear Stress Partitioning of Overland Flow on Disturbed and Undisturbed Rangelands”, in Proceedings of the International Symposium on Erosion and Landscape Evolution, Anchorage, Alaska, USA, American Society of Agricultural and Biological Engineers and Association of Environmental and Engineering Geologist, Edited by Flanagan, D.C., Ascough II, J.C., and Nieber J.L., Paper # 11134.

Shear stress partitioning of overland flow on disturbed and undisturbed rangelands - (Abstract Only)

Al-Hamdan, O.Z., Pierson, F.B., Nearing, M.A., Stone, J.J., Williams, C.J., Kormos, P.R., Boll, J., and Weltz, M.A. (2011) “Shear Stress Partitioning of Overland Flow on Disturbed and Undisturbed Rangelands”, Abstract, in the International Symposium on Erosion and Landscape Evolution, Anchorage, Alaska, USA, American Society of Agricultural and Biological Engineers and Association of Environmental and Engineering Geologist, Edited by Ascough II C. and Flanagan, D. C. pp 110.

Hydrologic vulnerability and risk assessment associated with the increased role of fire on western landscapes, Great Basin, USA - (Abstract Only)

Williams, C.J., Pierson, F.B., Robichaud, P.R., Spaeth, K.E., Hardegree, S.P., Clark, P.E., Moffet, C.A., Al-Hamdan, O.Z., and Boll, J. 2010. Hydrologic Vulnerability and Risk Assessment Associated with the Increased Role of Fire on Western Landscapes, Great Basin, USA. Presented at 2010 Fall Meeting, American Geophysical Union, San Francisco, California, 13-17 December 2010.

Suitability of terrestrial laser scanner derived surface roughness for predicting rill erosion in rangeland ecosystems - (Abstract Only)

Eitel, J.U.H., Williams, C.J., Vierling, L.A., Al-Hamdan, O.Z., and Pierson, F.B. 2010. Suitability of Terrestrial Laser Scanner Derived Surface Roughness For Predicting Rill Erosion in Rangeland Ecosystems. Presented at 2010 Fall Meeting, American Geophysical Union, San Francisco, California, 13-17 December 2010, Abstract B41C-0316.

New concentrated flow hydraulics equations for physically-based rangeland hydrology and erosion models - (Abstract Only)

Al-Hamdan, O.Z., Pierson, F.B., Williams, C.J., Nearing, M.A., Stone, J.J., Moffet, C.A., Kormos, P.R., Boll, J., and Weltz, M.A. 2010. New Concentrated Flow Hydraulics Equations for Physically-Based Rangeland Hydrology and Erosion Models. Presented at 2010 Fall Meeting, American Geophysical Union, San Francisco, California, 13-17 December 2010, Abstract H41F-1156.

Ecohydrological consequences of grasses invading shrublands: A comparison of cold and warm deserts - (Abstract Only)

Wilcox, B.P., Turnbull, L., Young, M., Williams, C.J., Ravi, S., Seyfried, M.S., Bowling, D.R., Scott, R.L., Caldwell, T.G., Wainwright, J., and Germino, M.J. 2010. Ecohydrological consequences of grasses invading shrublands: A comparison of cold and warm deserts. Presented at 2010 Fall Meeting, American Geophysical Meeting, San Francisco, California, 13-17 December 2010, Abstract H32B-08.

Hydrologic vulnerability of Great Basin sagebrush-steppe following pinyon and juniper encroachment - (Abstract Only)

Williams, C.J., Pierson, F.B., Kormos, P.R., Hardegree, S.P., Clark, P.E., and Al-Hamdan, O.Z. 2011. Hydrologic Vulnerability of Great Basin Sagebrush-Steppe Following Pinyon and Juniper Encroachment. In: Abstracts of the 64th Annual Meeting of the Society for Range Management, February 6-10, 2011, Billings, MT.

Optimizing regional collaborative efforts to achieve long-term discipline-specific objectives - (Abstract Only)

Pierson, F.B., Robichaud, P.R., Spaeth, K., Williams, C.J., and Al-Hamdan, O.Z. 2011. Optimizing Regional Collaborative Efforts to Achieve Long-Term Discipline-Specific Objectives. In: Abstracts of the 64th Annual Meeting of the Society for Range Management, February 6-10, 2011, Billings, MT.

Hydrologic vulnerability of sagebrush steppe following pinyon and juniper encroachment - (Peer Reviewed Journal)

Pierson Jr, F.B., Williams, C.J., Kormos, P.R., Hardegree, S.P., Clark, P., Rau, B.M. 2010. Hydrologic vulnerability of sagebrush steppe following pinyon and juniper encroachment. Rangeland Ecology and Management. 63(6):614-629.

Use of rainfall simulation and concentrated flow experiments to characterize rangeland hydrologic and erosional processes in the Great Basin, USA - (Abstract Only)

Pierson Jr, F.B., Robichaud, P.R., Williams, C.J., Kormos, P.R., Al-Hamdan, O.Z., Boll, J. 2010. Use of Rainfall Simulation and Concentrated Flow Experiments to Characterize Rangeland Hydrologic and Erosional Processes in the Great Basin, USA. In: Proceedings of European Geosciences General Assembly, May 2-7, 2010, Vienna, Austria, Geophysical Research Abstracts, Volume 12, EGU2010-7674.

Influence of soil water repellency on infiltration into fine- to coarse-textured soils of burned and unburned rangeland ecosystems in the Great Basin, USA - (Abstract Only)

Pierson Jr, F.B., Robichaud, P.R., Williams, C.J., Kormos, P.R., Al-Hamdan, O.Z. 2010. Influence of soil water repellency on infiltration into fine- to coarse-textured soils of burned and unburned rangeland ecosystems in the Great Basin, USA. In: Proceedings of European Geosciences Assembly, May 2-7, 2010, Vienna, Austria, Geophysical Research Abstracts, Volume 12, EGU2010-7696.

Hydrologic response to mechanical shredding in a juniper woodland - (Peer Reviewed Journal)

Cline, N.L., Roundy, B.A., Pierson, F.B., Kormos, P., and Williams, C.J. 2010. Hydrologic Response to Mechanical Shredding in a Juniper Woodland. Rangeland Ecology and Management. 63:467-477.

Slope impacts on concentrated flow hydraulics in rangeland - (Abstract Only)

Al-Hamdan, O.Z., Pierson Jr, F.B., Williams, C.J., Kormos, P.R., Nearing, M.A., Boll, J. 2009. Slope Impacts on Concentrated Flow Hydraulics in Rangeland, EOS Transactions, American Geophysical Union 90(52), Fall Meeting Supplement, Abstract EP31B-0595.

Hydrologic impacts of soil water repellency on fine-to-coarse-textured soils of wooded shrublands and shrub-steppe communities - (Abstract Only)

Williams, C.J., Pierson Jr, F.B., Kormos, P.R., Al-Hamdan, O.Z. 2009. Hydrologic Impacts of Soil Water Repellency on Fine-to-Coarse-Textured Soils of Wooded Shrublands and Shrub-Steppe Communities. In:AGU Chapman Conference on Examining Ecohydrological Feedbacks of Landscape Change Along Elevation Gradients in Semiarid Regions, American Geophysical Union, Boise and Sun Valley, Idaho, October 4-8, 2009.

Vegetation and groundcover influences on hydrology and erosion in pinyon and juniper woodland communities - (Abstract Only)

Pierson Jr, F.B., Kormos, P.R., Williams, C.J. 2008. Vegetation and Groundcover Influences on Hydrology and Erosion in Pinyon and Juniper Woodland Communities. In:15th International Congress of the International Soil and Water Conservation Organization Book of Abstracts, May 18-23,2008, Budapest-Hungary.

Soil water repellency and ground cover effects on infiltration in response to prescribed burning of steeply-sloped sagebrush hillslopes - (Abstract Only)

Weigel, A.B., Pierson Jr, F.B., Kormos, P.R., Williams, C.J., Pierce, J.L. 2008. Soil Water Repellency and Ground Cover Effects on Infiltration in Response to Prescribed Burning of Steeply-Sloped Sagebrush Hillslopes. EOS Transactions, American Geophysical Union 89(53), Fall Meeting Supplement, Abstract H33D-1036.

Hydrologic response of mechanical mastication in juniper woodland in Utah - (Abstract Only)

Cline, N.L., Roundy, B.A., Pierson Jr, F.B., Kormos, P.R., Williams, C.J. 2009. Hydrologic Response of Mechanical Mastication in Juniper Woodland in Utah. In: Proceedings of the 62nd Annual Meeting, Merging Trails: Culture, Science, and Innovation, Society for Range Management, February 8-12, 2009, Albuquerque, NM.

Hydrologic effects of fire in sagebrush plant communities: Implications for rangeland hydrology and erosion modeling - (Abstract Only)

Pierson Jr, F.B., Robichaud, P.R., Moffet, C.A., Spaeth, K.E., Williams, C.J. 2009. Hydrologic Effects of Fire in Sagebrush Plant Communities: Implications for Rangeland Hydrology and Erosion Modeling. In: Proceedings of the 62nd Annual Meeting, Merging Trails: Culture, Science, and Innovation, Society for Range Management, February 8-12, 2009, Albuquerque, NM.

Prescribed-fire effects on rill and interrill runoff and erosion in a mountainous sagebrush landscape - (Peer Reviewed Journal)

Pierson Jr, F.B., Moffet, C.A., Williams, C.J., Hardegree, S.P., Clark, P. 2009. Prescribed-Fire Effects on Rill and Interrill Runoff and Erosion in a Mountainous Sagebrush Landscape. Earth Surface Processes and Landforms. 34:193-203.

Soil water repellency and infiltration in coarse-textured soils of burned and unburned sagebrush ecosystems - (Peer Reviewed Journal)

Pierson, F.B., Robichaud, P.R., Moffet, C.A., Spaeth, K.E., Williams, C.J., Hardegree, S.P., and Clark, P.E. 2008. Soil water repellency and infiltration in coarse-textured soils of burned and unburned sagebrush ecosystems. Catena 74:98-108.

Hydrologic and erosional impacts of pinyon and juniper encroachment into sagebrush steppe communities of the Great Basin, USA. - (Proceedings)

Pierson Jr, F.B., Kormos, P.R., and Williams, C.J. 2008. Hydrologic and erosional impacts of pinyon and juniper encroachment into sagebrush steppe communities of the Great Basin, USA. In: Proceedings of the 15th International Congress of the International Soil and Water Conservation Organization, May 18-23, 2008, Budapest-Hungary. CD-ROM.

Fire effects on runoff generation and sediment yield from a coarse-textured sagebrush-dominated landscape - (Abstract Only)

Williams, C.J., Pierson Jr, F.B., Kormos, P.R.,and Moffet, C.A. 2007. Fire effects on runoff generation and sediment yield from a coarse-textured sagebrush-dominated landscape. Eos Trans American Geophysical Union, 88(52), Fall Meeting Supplement, Abstract H43F-1685.

The influence of woodland encroachment on runoff and erosion in sagebrush steppe systems, Great Basin, USA - (Abstract Only)

Pierson, F.B., Kormos, P.R. and Williams, C.J. 2007. The Influence of Woodland Encroachment on Runoff and Erosion in Sagebrush Steppe Systems, Great Basin, USA. EOS Transactions, American Geophysical Union, 88(52), Fall Meeting Supplement, Abstract H31G-0750.

Fire effects on rangeland hydrology and erosion in a steep sagebrush-dominated landscape - (Peer Reviewed Journal)

Pierson, F.B., Robichaud, P.R., Moffet, C.A., Spaeth, K.E., Hardegree, S.P., Clark, P.E., and Williams, C.J. 2008. Fire Effects on Rangeland Hydrology and Erosion in a Steep Sagebrush-Dominated Landscape. Hydrological Processes: 22, 2916-2929.

First year soil and runoff response to compaction after mechanical mastication of juniper woodland - (Abstract Only)

Cline, N.A., Roundy, B.A., Pierson Jr, F.B., Kormos, P.R., and Williams, C.J. 2008. First Year Soil and Runoff Response to Compaction After Mechanical Mastication of Juniper Woodland. In: Proceedings of the 2008 Joint Meeting of the Society for Range Management and the American Forage and Grassland Council, January 26 - 31, 2008, Louisville, KY.

Fire impacts on rangeland hydrology and erosion in a steep sagebrush dominated landscape - (Abstract Only)

Williams, C.J., Pierson, F.B., Robichaud, P.R., and Moffet, C.A. 2006. Fire impacts on rangeland hydrology and erosion in a steep sagebrush dominated landscape. Eos Trans American Geophysical Union 87(52), Fall Meeting Supplement, Abstract H13B-1396.