USDA Forest Service

Pacific Southwest Research Station

Pacific Southwest
Research Station

800 Buchanan Street
Albany, CA 94710-0011
(510) 883-8830
United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

Research Topics Water and Watersheds

Study explores stream nitrogen concentrations

For the first time, a collaborative study [] has compared water quality trends in forested streams across the country that are largely undisturbed by land use or land cover changes. The study draws on 559 years of stream nitrate and 523 years of stream ammonium data from 22 streams in 7 experimental forests across the country. The study found that even near-pristine forested streams are subject to change.

Southern Sierra Critical Zone Observatory

The Kings River Experimental Watersheds hosts the Southern Sierra Critical Zone Observatory--a National Science Foundation effort to gain a better understanding of the zone of earth where "rock meets life." The critical zone extends from the tops of the trees to the groundwater and covers the entire earth where there is land. Download the video created by a UA Flandrau Science Center team to introduce the motivation and science involved in the National Critical Zone Observatory research program.

Kings River Experimental Watersheds (KREW)

KREW Scientists

KREW staff Kevin Mazzocco taking snow depth measurements at Upper Bull meteorological station
  • Carolyn Hunsaker, Research Ecologist; Pacific Southwest Research Station - US Forest Service
  • Dale Johnson, Soil Scientist; Dept. of Natural Resources and Environmental Science, University of Nevada Reno

KREW Staff

  • Kevin Mazzocco, Biological Sciences Technican; Pacific Southwest Research Station - US Forest Service
  • Jason Smith, Hydrologic Technician, SNRI - University of California Merced


USDA Forest Service, Pacific Southwest Research Station, Sierra Nevada Research Center, Davis and Fresno

Activity: host research agency

  • Dr. Michael Arbaugh, expertise is air quality effects, Riverside
  • Dr. Andrzej Bytnerowicz, expertise is air quality, Riverside
  • Dr. Mark Fenn, ecological effects of nitrogen deposition, Riverside
    The chemistry laboratory at the Riverside Fire Laboratory performs much of the chemical analyses for KREW samples.
  • David Hamilton, supervisory chemist
USDA Forest Service, Pacific Southwest Region, R5

Activity: funding for soil erosion work in 2003-2005, design of study, implementation of treatment

  • Brian Staab, regional hydrologist
  • Brent Roath, regional soil scientist
  • Jospeh Furnish, regional aquatic ecologist
  • Trent Procter, regional air quality program
USDA Forest Service, Sierra National Forest, Clovis, and High Sierra Ranger District, Prather, CA

Activity: host management agency, treatment implementation

  • Ross Peckinpah, Kings River Project coordinator
Southern California Edison, Shaver Lake, CA

Activity: land owner and treatment implementation

  • John R. Mount, Forest Resource Manager
U.S. Geological Survey, Water Division, Sacramento, CA

Activity: stream algae research

  • Dr. Larry Brown, research biologist
California Bay-Delta Watershed Program, Sacramento, CA

Activity: funding source 2005

State Agreement No. 04-186-555-0, “Kings River Experimental Watershed: Monitoring and Restoration of Forest Ecosystems”

  • Dennis Bowker
California Regional Water Quality Control Board, Central Valley Region, Fresno, CA

Activity: Funding source 2005 to present and grant administrator

  • Anthony Toto, grant manager
National Fire Program

Activity: funding source 2001 to present

Project number 01.PSW.C.1, Effects of fuel reductions on stream ecosystems

Joint Fire Sciences Program

Activity: funding source 2001 to 2004

Project number 00-2-05, Kings River and Lake Tahoe Basin demonstration sites for fuel treatments

Central Sierra Historical Society, Shaver Lake, CA

Activity: public outreach and educational activities

University of California, Santa Barbara

Expertise: ecology and physiology of aquatic insects and algae

  • Dr. David B. Herbst, Sierra Nevada Aquatic Research Laboratory, Mammoth Lakes, CA
  • Dr. Scott D. Cooper, Department of Evolution, Ecology and Marine Biology, Santa Barbara, CA
University of California, Berkeley

Expertise: dissolved organic matter, biogeochemistry

  • Dr. Elizabeth Boyer
University of California Merced

Activity: development of Sierra Nevada Hydrologic Observatory proposal for National Science Foundation’s Consortium of University …

  • Dr. Roger Bales
  • Dr. Martha Conklin
California State University, Chico
  • Dr. Fraka Harmsen - Dean of Natural Sciences; expertise is sedimentary and basin analysis
California State University, Fresno
  • Dr. Ruth Ann Kern, Biology Department, expertise is forest ecology
  • Dr. Steven Blumenshine, Biology Department, expertise is aquatic ecology
  • Dr. Roland Brady, Department of Earth and Environmental Sciences, expertise is geomorphology
California Water Institute

Activity: funding source 2002 to 2004

Project number 20055 (Harmsen and Kern) and number 20051 (Blumenshine)

University of Nevada, Reno

Expertise: soils

  • Dr. Dale Johnson, Dept. of Natural Resources and Environmental Science
Colorado State University, Ft. Collins, CO

Expertise: soil erosion

  • Dr. Lee McDonald, Dept. of Soil Rangeland and Watershed Stewardship
Funding Sources
Last Modified: Jun 21, 2013 08:30:08 PM