Arizona
David Quanrud leads team investigating perfluorooctane sulfonate (PFOS) in Tucson ground water
The trace organic contaminant perfluorooctane sulfonate (PFOS) was detected in several groundwater production wells in 2009 by the Tucson Water Department in their Microconstituent Sentinel Program . The origin of PFOS contamination in Tucson Basin ground water is unknown although it is strongly suspected that municipal wastewater effluent that recharges the local aquifer via the Santa Cruz River is an important source. PFOS, the key ingredient in Scotchgard up until 2003, is a perfluorinated anthropogenic chemical that is very persistent and a sus
Dr. Larry Howery appointed by Secretary of Interior Ken Salazar to serve on Arizona's Bureau of Land Management's (BLM) ......
On November 20, 2009, Dr. Larry Howery was appointed by Secretary of Interior Ken Salazar to serve on Arizona's Bureau of Land Management's (BLM) Resource Advisory Council (RAC). RAC members advise the BLM regarding management of public land resources so that balanced decisions can be made to serve the interests of all public land users. This is Dr.
UA Researchers Combating Obesity – One App at a Time
The work of SNRE professor Barron Orr and other UA colleagues was highlighted in the current issues of East Valley Living, a publication covering community news in the Greater Phoenix area.
Riparian Monitoring Workshop August 25-27, 2009
Please join us for this year's Riparian Monitoring Workshop in Eager AZ. Registration deadline is August 18. For more information contact Barb Gibson at bgibson@ag.arizona.edu or consult the workshop website at http://ag.arizona.edu/research/rfr/workshops/riparian/Riparian%20Workshop%20Aug%2009.html
Conservation on the Edge
Dr. John Koprowski in the School of Natural Resources and the Environment takes a special interest in what happens to populations at the edges of their range. Range edges are constantly growing due to fragmentation - and these are the places where we are likely to see striking ecological shifts as the climate changes.
Carbon in the Desert
In recent decades, a worldwide trend of increasing woody plant abundance in grasslands and savannas has been reported. This proliferation of trees and shrubs move affects livestock production, wildlife habitat, water availability. At the same time their presence changes the way the ecosystem processes carbon and nitrogen, two important elements linked to climate change. SNRE professor Steve Archer is interested in understanding how carbon and nitrogen stocks in ecosystems change as the systems shift from grassland to shrubland.
Rangelands West
Rangeland health affects us all. Rangelands comprise about 40% of the landmass of the United States and provide valuable grazing lands for livestock and wildlife. They serve as a source of high quality water, clean air, and open spaces and benefit people through recreation, agriculture, and mining. The Rangelands West website was created to share information and tools to care for these extensive and diverse lands.
The Walnut Gulch Experimental Watershed
The Walnut Gulch Experimental Watershed surrounds the historic city of Tombstone in southern Arizona. The USDA - Agricultural Research Service established the watershed in the 1950s to study floods and the impact of soil and water conservation projects on runoff.
