2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM

Session No. 51
Sunday, 5 October 2008: 8:00 AM-12:00 PM

J9. Gains and Losses: Soil Nutrients and Moisture in Aridic Soils Under Changing Climates

GSA Quaternary Geology and Geomorphology Division; S06 Soil & Water Management & Conservation; S05 Pedology

 

Marith Reheis, Mark Miller and Ted M. Zobeck, Conveners/Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
Projected 21st Century Climatic Contexts for Change in Aridic Soils
DETTINGER, Michael, U.S. Geological Survey, Scripps Institution of Oceanography, UC San Diego, Dept 0224, 9500 Gilman Drive, La Jolla, CA 92093, mddettin@usgs.gov, mddettin@usgs.gov
2
8:25 AM
Feedbacks Between Aeolian Processes, Vegetation Productivity, and Nutrient Flux in Deserts
OKIN, Gregory S.1, LI, Junran2, ALVAREZ, Lorelei2, PETERS, Debra P.C.3 and D'ODORICO, Paolo2, (1)Department of Geography, UCLA, Los Angeles, CA 90095, (2)Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22904, (3)USDA-ARS Jornada Experimental Range, Las Cruces, NM 88013, okin@ucla.edu, okin@ucla.edu
3
8:45 AM
Paleosol Record of Late Quaternary Desertification, Chihuahuan Desert, New Mexico
RACHAL, David, Plant and Environmental Sciences, New Mexico State University, MSC 3Q, Box 30003, Las Cruces, NM 88003 and MONGER, H. Curtis, MSC 3Q, Box 30003, Las Cruces, NM 88003, d.rachal@gmail.com, d.rachal@gmail.com
4
9:00 AM
Links Between Land Surface Characteristics and near-Surface Accumulations of Dust, Soluble Salts, Nitrate-Nitrogen, and Carbonate in the Southern Fry Mountains, Mojave Desert, USA
HIRMAS, Daniel R., Department of Geography, University of Kansas, Lawrence, KS 66045-7613, GRAHAM, Robert C., Soil & Water Sciences Program, Dept. of Environmental Sciences, University of California, Riverside, CA 92521-0424 and HARLOW, Megan, Department of Geography, University of Georgia, Athens, GA 30602, dhirmas@yahoo.com, dhirmas@yahoo.com
5
9:15 AM
Tracking the Provenance of Soil Nutrients in Arid to Hyperarid Soils of the Atacama Desert, Chile, Using Strontium Isotopes
HYNICKA, Justin D.1, STEWART, Brian W.1, EWING, Stephanie A.2 and AMUNDSON, Ronald3, (1)Department of Geology & Planetary Science, University of Pittsburgh, Pittsburgh, PA 15260, (2)U.S. Geological Survey, Marine Street Science Center, 3215 Marine St., Suite E-127, Boulder, CO 80303, (3)Division of Ecosystem Sciences, U.C. Berkeley, Mulford Hall, Berkeley, CA 94720, bstewart@pitt.edu, bstewart@pitt.edu
6
9:30 AM
The Effects of Land Use and Climate Change on the Erodibility of Desert Soils
BELNAP, Jayne1, REYNOLDS, Richard L.2, REHEIS, Marith2, PHILLIPS, Susan L.1, URBAN, Frank2 and GOLDSTEIN, Harland L.2, (1)U.S. Geological Survey, 2290 S. Resource Blvd, Moab, UT 84532, (2)U.S. Geological Survey, Box 25046, Denver Federal Center, MS-980, Denver, CO 80225, jayne_belnap@usgs.gov, jayne_belnap@usgs.gov
7
9:50 AM
Long-Term Patterns of Dust Deposition in High-Elevation Ecosystems Downwind of Aridic Dust Sources: The Influence of Dust Accumulation on Terrestrial and Aquatic Biogeochemistry
LAWRENCE, Corey and NEFF, Jason, Geological Sciences, University of Colorado, Campus Box 399, 2200 Colorado Ave, Boulder, CO 80309, corey.lawrence@colorado.edu, corey.lawrence@colorado.edu
8
10:10 AM
Complex Geo-Ecological Responses to Quaternary Climatic Changes in the Northern Negev Desert
YAIR, Aaron, Geography, Hebrew University of Jerusalem, Mt. Scopus Campus, Jerusalem, 91905, Israel, aaron@vms.huji.ac.il, aaron@vms.huji.ac.il
9
10:25 AM
Wind Erosion and Dust Flux along the Grassland-Forest Continuum: Effects of Disturbance and Woody Plant Cover
FIELD, Jason P.1, BRESHEARS, David D.2, WHICKER, Jeffrey J.3, ZOU, Chris B.1 and ALLEN, Craig4, (1)School of Natural Resources, University of Arizona, Tucson, AZ 85721, (2)School of Natural Resources; Institute for the Study of Planet Earth; Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, (3)Health Physics Measurements Group; Health, Safety, and Radiation Protection Division, Los Alamos National Laboratory, Los Alamos, NM 87545, (4)Jemez Mountains Research Center, USGS, Los Alamos, NM 87544, jpfield@email.arizona.edu, jpfield@email.arizona.edu
10
10:45 AM
Assessing Resilience of Western Rangelands to Transportation-Related Land-Use Change
DUNIWAY, Michael C. and HERRICK, Jeffrey E., Jornada Experimental Range, USDA-ARS, MSC 3JER, NMSU, Box 30003, Las Cruces, NM 88003-8003, mduniway@nmsu.edu, mduniway@nmsu.edu
11
11:05 AM
Short-Term Effects of Mechanical Land Treatments on Soil Stability and Wind Erosion in Dryland Ecosystems
MILLER, Mark E., U.S. Geological Survey, 190 E. Center St, Kanab, UT 84741, mark_miller@usgs.gov, mark_miller@usgs.gov
12
11:20 AM
Effect of Wildfires on Physical, Chemical, and Biological Properties of Soil Resource Islands in Joshua Tree National Park
HUBBERT, Ken R., Hubbert & Associates, Apple Valley, CA 92307, MILLER, Alice, Joshua Tree National Park, Twentynine Palms, CA 92277 and BUSSE, Matt, USDA Forest Service, Pacific SW Research Station, 3644 Avtech Parkway, Redding, CA 96002, krhubbert@yahoo.com, krhubbert@yahoo.com
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