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)

Education & Outreach

2001 KREW class field trip
The researchers and managers involved in the KREW project understand how important it is to relay the information they collect to the public. Because the research taking place at KREW would not be possible without strong public support and understanding, KREW scientists want to interact with the public as much as possible.

To help them do this, KREW has created several education and outreach products for the public. These materials include full-color brochures and one-page handouts (see below) that describe in more detail some of the research and outreach activities that KREW is actively involved in. In addition, two permanent signs have been posted near the KREW research locations that discuss the role of fire in the southern Sierra Nevada.

To encourage direct interaction and feedback with people from all walks of life, KREW participates in several events every year, including field trips, lectures, meetings, and local festivals.

For information on any upcoming public events, please contact Carolyn Hunsaker, lead scientist on the KREW project. KREW Riverfest event

KREW project brochures
  • KREW Project Overview (PDF)
  • Sediment and Soil Erosion (PDF)
  • Stream Discharge (PDF)
  • Fire in the Sierra Nevada...What Are the Benefits? (PDF)
  • Fire Benefits Many Plants and Animals (PDF)
  • Fire Helps Maintain Healthy Forests (PDF)
Last Modified: Jun 21, 2013 08:28:40 PM