Andrew Stubblefield | Forestry, Fire, & Rangeland Management

Professor - Hydrology and Watershed Management

I am interested in the source, transport and fate of fine sediment and associated nutrients in watersheds. In particular, I am interested in investigating the hydrological processes that link land management, erosion and sediment transport with water quality. I am interested in climate change science and its impacts on water resources. Other interests include the application of active learning pedagogies in higher education.

My specializations include:

Water quality monitoring, chemistry and instrumentation.
Methods for the assessment of erosional processes; sediment budgets, naturally occurring radionuclides, and erosion plot studies.
Ecosystem health assessment

Education

Ph.D. University of California, Davis, Watershed Hydrology

M.S. University of Michigan, Terrestrial Ecosystem Science

B.S. Oberlin College, Biology

Courses Taught

WSHD 310 Hydrology and Watershed Management

WSHD 333 Wildland Water Quality

WSHD 424 Watershed Hydrology

WSHD 458/558 Climate Change and Land Use

Current Graduate Students

Name	Thesis
Lindsay Benjamin-Brittany	Assessment of Carbon Storage and Aquifer Recharge in Beaver Meadows of the Sierra Nevada, USA
Preston Selby	Evaluation of thinning on stream thermal conditions in coastal Redwood riparian forests.
Andre Sanchez	Quantifying summer water budget use by fir and oak trees within overtopped and released forest stands.
Kayla Fitzpatrick	Water Quality Assessment of the Klamath River

Former Graduate Students

Name	Thesis	Graduation Year
Zachary Gigone	Sediment production from forest roads in areas affected by the August Complex fire in Northern California	2022
Danielle Jones	A comparison of the removal of estrogen between different wastewater treatment processes	2021
Chris Faubion	Sediment production and delivery from timber harvest roads in Humboldt County, California	2020
Diedra Rodriguez	Persistence of stream restoration with large wood, Redwood National and State Parks, California	2018
Ivan Medel	Sedimentation and erosion patterns within anabranching channels in a lowland river restoration project	2017
Kirsten Reddy	An examination of water consumption during and after severe drought in coastal stands of Douglas-fir in the Pacific northwest	2017
Alexander Wick	Adaptive management of a riparian zone in the lower Klamath River basin, northern California : the effects of riparian harvest on canopy closure, water temperatures and baseflow	2016
Celeste Melosh	Modeling runoff levels over impervious surfaces in the Lake Tahoe basin using varying data resolution.	2015
Nick Harrison	Understanding the effects of soil exposure in fuels treatments that balance fuel reduction and erosion control in the Tahoe basin.	2012
Joél Benegar	Evaluation of constructed wood jams in a forest, gravelbed stream	2011

Publications

* denotes a graduate student under my supervision.

Stubblefield, A. P., & Reddy, K. 2021. Measurement and prediction of water consumption by Douglas‐fir, Northern California, USA. Ecohydrology, e2388.

Ivan D. Medel, Andrew Phillip Stubblefield & Conor Shea. 2020. Sedimentation and Erosion Patterns within Anabranching Channels in a Lowland River Restoration Project, International Journal of River Basin Management, DOI: 10.1080/15715124.2020.1809435

Flannery*, J., A.P. Stubblefield, Fiore, R., and C. Shea. 2016. Observations of channel change from constructed wood jams on a forested gravelbed stream. Transactions of the American Fisheries Society. 146(1): 181-193.

Harrison, N.M*., A.P. Stubblefield, J.M. Varner, E.E. Knapp. 2016. Finding balance between fire hazard reduction and erosion control in the Lake Tahoe Basin, California–Nevada. Forest Ecology and Management (360) 40–51.

Bond, R.M*., A.P. Stubblefield, R.W. Van Kirk. 2015. Sensitivity of summer stream temperatures to climate variability and riparian reforestation strategies.Journal of Hydrology: Regional Studies 4 (B) 267–279.

Maurin, L.P*., A.P. Stubblefield. 2011. Channel adjustment following culvert removal from forest roads in northern California, USA. Ecological Restoration 29 (4), 382-391

Royer, C.F*., A.P. Stubblefield. 2009. Klamath River Basin Water Quality Monitoring Plan. Report assembled for the Klamath Basin Monitoring Program, a multi-state stakeholder group consisting of over 40 agencies, tribal nations and non-profit organizations.

Huggett, B.W*., A.P. Stubblefield, A.S. Dhakal, K. Sullivan. 2009 Distributed Hydrology Soil Vegetation Model (DHSVM) and Sediment Discharge Validation in a small, Pacific Northwestern Watershed. EOS Trans. AGU 90 (52), Fall Meet, Suppl., Abstract H11E-0849.

Stubblefield, A.P., J.E. Reuter, C.R. Goldman. 2009. Sediment budget for subalpine watersheds, Lake Tahoe California, USA. Catena 76: 163-172.

Stubblefield, A.P., J.E. Reuter, R.A. Dahlgren, C.R. Goldman. 2007. Use of turbidometry to characterize suspended sediment and phosphorus fluxes in the Lake Tahoe basin. Hydrological Processes 21:281-291.

Stubblefield, A.P., P.J. Whiting, G. Matisoff, C. Fondran, and M.E. Ketterer. Radionuclide and rare earth element tracers of erosional processes on the plot scale. Proceedings of the 8th Federal Interagency Sedimentation Conference. Reno, Nevada. April 3-6, 2006.

Stubblefield, A.P., J.E. Reuter, E.W. Larsen, M.I. Escobar C.R. Goldman. Turbidity measurements for determination of sediment source and retention in river and marsh environments. Proceedings of the 8th Federal Interagency Sedimentation Conference. Reno, Nevada. April 3-6, 2006.

Stubblefield, A.P., M.I. Escobar, E.W. Larsen. 2006. Retention of suspended sediment and phosphorus on a freshwater delta, South Lake Tahoe, California. Wetlands Ecology and Management 14: 287-302.

Stubblefield, A., S. Chandra, S. Eagan, T. Dampil, G. Davaadorzh, D. Gilroy, J. Sampson, B. Allen, J. Thorne, Z. Hogan. Impacts of goldmining and land use alterations on the water quality of central Mongolian rivers. 2005. Integrated Environmental Assessment and Management 1(4): 365-373.