B51G:
Past, Present, and Future of Dryland Ecosystems: Local Trends to Global Impacts II Posters

Submit an Abstract to this Session



Session ID#: 24251

Session Description:
Dryland ecosystems cover 35% of the world’s surface, host major centers of global plant diversity, support over third of the global human population mainly in the developing countries, and play an important role in land CO2 sink. Yet, drylands are in zones of transition that will be affected by future global change, including drought and land degradation, with unclear consequences on global carbon and hydrological budgets, ecosystem services and sustainable livelihoods. In this session we seek to i) highlight advances in our collective understanding of carbon, water and vegetation-related processes in dryland ecosystems under changing climate and management across temporal and spatial scales, and ii) provide perspectives on needs and directions for future research. Contributions from both modeling and experimental studies across a wide range of fields are welcome.
Primary Convener:  Istem Fer, Boston University, Earth and Environment, Boston, MA, United States
Conveners:  Shishir Basant, Texas A&M AgriLife Research, College Station, TX, United States, Natasha MacBean, University of Arizona, School of Natural Resources and the Environment, Tucson, AZ, United States and Yong Zhou, Yale University, New Haven, CT, United States
Chairs:  Istem Fer, Boston University, Earth and Environment, Boston, MA, United States, Shishir Basant, Texas A&M AgriLife Research, College Station, TX, United States, Natasha MacBean, Western University, Department of Geography & Environment and Department of Biology, London, Canada and Yong Zhou, Yale University, New Haven, CT, United States
OSPA Liaison:  Natasha MacBean, Western University, Department of Geography & Environment and Department of Biology, London, Canada

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
  • H - Hydrology
Index Terms:

0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0476 Plant ecology [BIOGEOSCIENCES]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1813 Eco-hydrology [HYDROLOGY]

Abstracts Submitted to this Session:

Satellite passive microwaves for monitoring deforestation and drought-induced carbon losses in sub-Saharan Africa (270273)
Martin Brandt1, jean-Pierre Wigneron2, Jérome Chave3, Torbern Tagesson4, Josep Penuelas5, Philippe Ciais6, Kjeld Rasmussen4, Feng Tian7, Cheikh Mbow8, Amen Al-Yaari9, Nemesio Rodriguez-Fernandez10, Wenmin Zhang11, Yann H Kerr12, Compton J Tucker13, Arnaud Mialon14, Aleixandre Verger15 and Rasmus Fensholt11, (1)University of Copenhagen, København K, Denmark, (2)INRA Bordeaux-Aquitaine, ISPA, Villenave d'Ornon Cedex, France, (3)CNRS, Laboratoire Evolution et Diversité Biologique, Toulouse, France, (4)University of Copenhagen, Copenhagen, Denmark, (5)Global Ecology Unit CREAF-CSIC-UAB, Barcelona Bellaterra, Spain, (6)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (7)Lund University, Lund, Sweden, (8)World Agroforestry Centre (ICRAF), Nairobi, Kenya, (9)ISPA, INRA Bordeaux, France, Bordeaux, France, (10)CESBIO, Bordeaux, France, (11)University of Copenhagen, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark, (12)CNES French National Center for Space Studies, Toulouse Cedex 09, France, (13)NASA Goddard Space Flight Center, Earth Science Division, Greenbelt, MD, United States, (14)Centre d'Etudes Spatiales de la Biosphere, Toulouse Cedex 9, France, (15)CREAF, Cerdanyola Del Valle, Spain
Alternative Vegetation States in Tropical Africa: the Search for Consistent Signals in Diverse Remote Sensing Datasets (291491)
Sanath Sathyachandran Kumar, PhD1, Niall P Hanan2, Lara Prihodko3, Julius Anchang2, Wenjie Ji4 and Christopher Wade Ross5, (1)ASRC Federal InuTeq, USGS EROS, Sioux Falls, SD, United States, (2)New Mexico State University, Plant and Environmental Sciences, Las Cruces, United States, (3)New Mexico State University Main Campus, Department of Animal and Range Sciences, Las Cruces, NM, United States, (4)New Mexico State University, Plant and Environmental Sciences, Las Cruces, NM, United States, (5)New Mexico State University Main Campus, Plant and Environmental Sciences, Las Cruces, NM, United States
Assessment of Vegetation Responses and Sensitivity to the Millennium Drought in Australia (233973)
Tong Jiao, Clark University, Geography, Worcester, MA, United States and Christopher A Williams, Clark University, Worcester, United States
Evaluation of eco-physiological indicators in Northeast Asia dryland regions based on MODIS products and ecological models (210193)
Wenping Kang, Kangwon National University, Chuncheon, Korea, Republic of (South)
Soil Organic Carbon Variability in High-Andean Ecosystems: Bringing Together Machine Learning and Proximal Soil Sensing (277267)
Carla Gavilan, University of Florida, Soil and Water Sciences, Ft Walton Beach, FL, United States, Sabine Grunwald, University of Florida, Soil, Water and Ecosystem Sciences Department, Gainesville, United States and Roberto Quiroz, International Potato Center (CIP), Lima, Peru
Water and Nitrogen Limitations of Ecosystem Processes Across Three Dryland Plant Communities (292130)
Christopher Beltz, William K. Lauenroth and Ingrid C. Burke, Yale University, School of Forestry & Environmental Studies, New Haven, CT, United States
Large Scale Greening Up in Arid Parts of India due to Anthropogenic Nutrient Loading (224887)
Swagat Patnaik and Basudev Biswal, Indian Institute of Technology Hyderabad, Hydearbad, India
Assessing Ecosystem Model Performance in Semiarid Systems (273647)
Anne Thomas, Brigham Young University, Provo, UT, United States, Michael Dietze, Boston University, Boston, MA, United States, Russell L Scott, Agricultural Research Service Tucson, Tucson, AZ, United States and Dr. Joel A Biederman, PhD, Agricultural Research Service Tucson, Southwest Watershed Research Center, Tucson, AZ, United States
"Modeled and measured carbon cycling in Mojave Desert soils: toward present and projected greenhouse gas budgets for arid regions (280160)
Greg Maurer1, Ronald Amundson2, Laura Nielsen Lammers3, Jennifer Mills1 and Erik Oerter4, (1)University of California Berkeley, Berkeley, CA, United States, (2)University of California Berkeley, Department of Environmental Science, Policy and Management, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Lawrence Livermore National Laboratory, Livermore, CA, United States
Landscape-scale soil moisture heterogeneity and its influence on surface fluxes at the Jornada LTER site: Evaluating a new model parameterization for subgrid-scale soil moisture variability  (260248)
Ian T Baker, Colorado State University, CIRA, Fort Collins, United States, Lara Prihodko, South Dakota State University, Brookings, SD, United States; New Mexico State University Main Campus, Department of Animal and Range Sciences, Las Cruces, NM, United States, Enrique R Vivoni, Arizona State University, School of Sustainable Engineering and the Built Environment, Tempe, AZ, United States and A Scott Denning, Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States
Hotspots for Soil Moisture Retrieval Failure across Continental USA (298611)
Maheshwari Neelam, Texas A&M University, College Station, TX, United States and Binayak Mohanty, Texas A&M University, Department of Biological and Agricultural Engineering, College Station, United States
Variability of soil CO2 efflux in a semi-arid grassland in Arizona (277798)
Praveena Krishnan1, Tilden P Meyers2 and Mark Heuer1, (1)NOAA/ARL/ATDD, Oak Ridge, TN, United States, (2)NOAA/ARL/ATDD, Oak Ridge, United States
A dam in the drylands: Effects of soil geomorphic actions on a mediterranean alluvial scrubland and the endangered Santa Ana woolly star (Eriastrum densifolium spp. sanctorum) (247601)
Rebecca R Hernandez, University of California, Davis, Land, Air and Water Resources, Davis, United States and Darren R Sandquist, California State University Fullerton, Fullerton, CA, United States
Short-term Dynamics of Photopriming Increase Carbon Loss During Litter Decomposition (287492)
Jennifer Y King1, Yang Lin2, Steven D Karlen3 and John Ralph3, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)University of California, Santa Barbara, CA, United States, (3)University of Wisconsin, Madison, WI, United States
Decomposition of standing litter in arid grasslands: Interactions between sunlight, non-rainfall moisture, microbes, and plant traits (280060)
J. Robert Logan V1, Peter J. Jacobson2, Kathryn M. Jacobson2 and Sarah Evans3, (1)Michigan State University, Kellogg Biological Station, East Lansing, MI, United States, (2)Grinnell College, Biology, Grinnell, IA, United States, (3)Michigan State University, Kellogg Biological Station, Hickory Corners, United States
Temporal and Spatial Distribution of Ecological Security in Arid Region Based on GIS：A Case Study in Xinjiang (235495)
Qing Zhang, Wenjie Song and Jiangning Yang, RADI Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China
Utilizing NASA Earth Observations to investigate habitat suitability of the Cape Vulture in the Western Cape Province of South Africa (298065)
Darcy Gray, Tulane University of Louisiana, New Orleans, LA, United States, Maury Gordon Estes Jr, University of Alabama in Huntsville and NASA Ecological Conservation Program, Huntsville, United States, Robert Griffin, University of Alabama in Huntsville, Huntsville, AL, United States and Sue M Estes, NASA/UAH, Earth Science, Huntsville, AL, United States

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