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California targets vital agriculture, environmental issuesCalifornia targets vital agriculture, environmental issues

Researchers in California have received funding for projects on key agriculture issues such as water demand, restoring pollinator communities, and estimating alfalfa’s impact on nitrogen and nitrate leaching in the Central Valley.

April 30, 2012

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Researchers and educators from the University of California and California State University have received funding for joint projects on priority issues such as urban residential water demand, restoring pollinator communities, and estimating alfalfa’s impact on nitrogen and nitrate leaching in the Central Valley.

Leadership of California’s higher education systems made the funding available to jointly address issues in agriculture, natural resources and human sciences. Project criteria include collaborative research, teaching, or course development; development of student internship opportunities; and workshops, conferences, and symposia. Eight projects totaling more than $79,500 were selected from 30 proposals submitted.

“These research projects will help leverage limited resources to produce quick results on important issues in California,” said Neal Van Alfen, dean of the College of Agricultural and Environmental Sciences at UC Davis. “They are also building stronger connections among researchers throughout the state and providing hands-on learning opportunities for students.”

Researchers involved in this year’s projects are from UC Davis, UC Berkeley and California State University campuses at Chico, Fresno, Humboldt, Pomona, Sonoma, San Marcos and San Luis Obispo. The awarded projects, with principal investigators, are listed below:

  • “Estimating residential water demand functions in urban California regions” — Economists from UC Berkeley and Cal Poly San Luis Obispo will estimate residential water demand of municipalities and water companies that serve 19 million people in the Bay Area and Southern California. (Maximilian Auffhammer, Stephen Hamilton)

  • “Reintroduced mammals and plant invaders as key drivers of ecosystem processes in coastal and interior grasslands” — Researchers from Sonoma State University and UC Davis will study how reintroducing tule elk and reducing invasive Harding grass affects the availability of soil nutrients and the composition of plant communities. (Caroline Christian, J. Hall Cushman, Valerie Eviner)

  • “Genetics of plant defense responses to pesticides and spider mites on grapes” — Scientists from UC Davis and Cal Poly San Luis Obispo will conduct laboratory, greenhouse and field studies to learn more about factors affecting grapevine response to spider mites, including cultivar resistance, drought impact and pesticide exposure. (Michael Costello, Richard Karban, Andrew Walker, Jeffrey Wong)

  • “Defining the functions of polyphenol oxidase in walnut” — Through genetic analysis, researchers at CSU San Marcos and UC Davis seek to learn more about an enzyme involved in the postharvest browning of cut or bruised fruit. (Matthew Escobar, Monica Britton, Abhaya Dandekar)

  • “Modeling the costs of hazardous fuel reduction thinning treatments and removal of woody biomass for energy” — Researchers from Humboldt State University, UC Davis, and the U.S. Forest Service will develop a model to estimate the costs of removing hazardous wildland fuels with different equipment and systems over a wide range of forest stand, site and road conditions. (Han-Sup Han, Bruce Hartsough)

  • “Restoration of pollinator communities and pollination function in riparian habitats” — Researchers from California State University, Chico, and UC Davis will characterize native pollinator communities at restored riparian habitats within the Central Valley and test whether successful restoration of pollinator communities also leads to restoration of pollination. (Christopher Ivey, Neal Williams)

  • “Estimating alfalfa’s impact on regional nitrogen budgets and nitrate leaching losses in the Central Valley of California” — Researchers from California State University, Fresno, and UC Davis will collect alfalfa and non-legume plants from irrigated fields and also identify San Joaquin Valley farm sites for a multi-year study of alfalfa’s impact on regional nitrogen budgets, groundwater nitrate leaching, and nitrogen requirements of rotation crops. (Bruce Roberts, Stuart Pettygrove, Daniel Putnam)

  • “Community and ecosystem response to elevated nitrogen in managed grassland ecosystems” — Restoration ecologists from Cal Poly Pomona and UC Berkeley will investigate how elevated nitrogen levels affect competition among native and exotic plant species with regard to fuel characteristics at UC’s South Coast Research and Extension Center. (Erin Questad, Katharine Suding)

Reports on project outcomes are expected in December 2012.

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