| | Paper # | Start Time | |
| | 8:00 AM | Introductory Remarks |
| 28-1 | 8:15 AM | DESERTIFICATION: CHANGES IN SOIL BIOGEOCHEMISTRY IN THE CHIHUAHUAN DESERT: SCHLESINGER, William H., Division of Earth and Ocean Sciences, Nicholas School of the Environ and Earth Sciences, Duke University, Durham, NC 27708, schlesin@duke.edu. |
| 28-2 | 8:35 AM | SOIL GEOCHEMISTRY IN THE PRESENCE OF LIFE, OR LACK OF IT, ALONG A HYPERARID PRECIPITATION GRADIENT IN THE ATACAMA DESERT, CHILE: AMUNDSON, Ronald1, EWING, Stephanie1, SUTTER, Brad2, and WARREN-RHODES, Kimberley2, (1) Div. of Ecosytem Sciences, Univ. of California, 151 Hilgard Hall, Berkeley, CA 94720-3110, earthy@nature.berkeley.edu, (2) NASA-Ames Rsch Ctr, MS 245-3, Moffett Field, CA 94035 |
| 28-3 | 8:55 AM | ISOTOPIC EVIDENCE FOR THE SOURCE OF CA AND S IN SOIL GYPSUM/ANHYDRITE AND CALCITE IN THE ATACAMA DESERT, CHILE: RECH, Jason A.1, QUADE, Jay2, and HART, William S.2, (1) Geology, Miami Univ, Oxford, OH 45056, rechja@muohio.edu, (2) Department of Geosciences, Univ of Arizona, Tucson, AZ |
| 28-4 | 9:10 AM | MICROCLIMAE, WEATHERING AND LICHENS IN THE CENTRAL NAMIB DESERT: A 3 YEAR INVESTIGATION OF BIOGEOMORPHIC INTERACTIONS: VILES, Heather A., School of Geography and the Environment, Univ of Oxford, Mansfield Road, Oxford OX1 3TB United Kingdom, heather.viles@geog.ox.ac.uk. |
| 28-5 | 9:25 AM | DESERT PAVEMENT SURFACE CHARACTERISTICS AND THEIR CORRELATIONS WITH SOILS AND PLANT DISTRIBUTIONS, CIMA VOLCANIC FIELD, CALIFORNIA: WOOD, Yvonne A., Department of Soil & Environmental Sciences, University of California, Riverside, CA 92521-0424, yvonne@citrus.ucr.edu, GRAHAM, Robert C., Univ California - Riverside, Dept Soil & Environmental Science, Riverside, CA 92521-0424, and WELLS, Stephen G., Desert Rsch Institute, 2215 Raggio Pkwy, Reno, NV 89512-1095 |
| 28-6 | 9:40 AM | EOLIAN SAND SUPPLY TO COACHELLA VALLEY FRINGE-TOED LIZARD HABITAT IN THE NORTHERN COACHELLA VALLEY, CALIFORNIA: GRIFFITHS, Peter G.1, WEBB, Robert H.1, and LANCASTER, Nicholas2, (1) U.S. Geological Survey, 1675 W. Anklam Rd, Tucson, AZ 85745, pggriffi@usgs.gov, (2) Division of Earth and Ecosystem Sciences, Desert Rsch Institute, Reno, NV 89512 |
| | 9:55 AM | Discussion |
| 28-7 | 10:10 AM | DETERMINANTS OF SOIL BIODIVERSITY AND ECOSYSTEM FUNCTIONING IN THE ANTARCTIC DRY VALLEYS: WALL, Diana H. and PARSONS, A.N., Natural Resource Ecology Laboratory, Colorado State Univ, Fort Collins, CO 80523, diana@nrel.colostate.edu |
| 28-8 | 10:30 AM | USING GEOLOGY TO PREDICT SITES OF ANNUAL GRASS INVASIONS OR MAKE SURE THERE IS “GEO” IN YOUR “ECO”: BELNAP, Jayne1, REHEIS, Marith2, REYNOLDS, Richard2, and PHILLIPS, Susan L.1, (1) BRD-FRESC, US Geol Survey, 2290 S. Resource Blvd, Moab, UT 84532, jayne_belnap@usgs.gov, (2) U.S. Geol Survey, Federal Center, Denver, CO 80225 |
| 28-9 | 10:50 AM | PHOSPHORUS AVAILABILITY CHANGES SEASONALLY IN EOLIAN DUST INPUTS AND IN SURFACE SOILS: SANFORD, Robert L. Jr, Biological Sciences, Univ of Denver, 2190 East Iliff Ave, Denver, CO 80208, rsanford@du.edu, REHEIS, Marith Cady, US Geol Survey, PO Box 25046, Denver, CO 80225-0046, and BELNAP, Jayne, BRD-FRESC, US Geol Survey, 2290 S. Resource Blvd, Moab, UT 84532 |
| 28-10 | 11:05 AM | RELATIONSHIPS BETWEEN POSTFIRE SAGUARO SHRUB SPECIES, SOIL DEVELOPMENT AND LANDSCAPE MORPHOLOGY ON A DISSECTED ALLUVIAL FAN SURFACE, TONTO NATIONAL FOREST, ARIZONA: JENNINGS, Karen L.1, NAROG, Marcia G.1, HUBBERT, Ken R.1, WILSON, Ruth L.2, and ABORDO, Adrian1, (1) USDA Forest Service, Pacific Southwest Rsch Station, 4955 Canyon Crest Dr, Riverside, CA 92507, kjennings@fs.fed.us, (2) Biology Dept, Cal State San Bernardino, 5500 University Parkway, San Bernardino, CA 92407 |
| 28-11 | 11:20 AM | GEOLOGICAL CONTROL OF PLANT SPECIES DISTRIBUTION IN WYOMING: REINERS, William A., Wyoming Geographic Information Science Center, Univ of Wyoming, Laramie, WY 82071-4008, reiners@uwyo.edu, FERTIG, Walter C., Grand Staircase-Escalante National Monument, Bureau of Land Managment, 190 East Center St, Kanab, UT 84741, and THURSTON, Robert C., Wyoming Natural Diversity Database, Univ of Wyoming, Laramie, WY 82071-3381 |
|