B12B:
Past, Present, and Future of Water-Limited Ecosystems: Local Trends to Global Impacts I


Submit an Abstract to this Session


Session ID#: 59843

Session Description:
Water-limited ecosystems, encompassing arid, semi-arid and sub-humid regions (also referred to as drylands), cover ~40% of the earth surface, host major centers of plant diversity, support over third of the global human population - mainly in the developing countries -  and represent a major uncertainty in the global carbon cycle. 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 water budgets, ecosystem services and sustainable livelihoods. In this session we seek to i) highlight advances in our understanding of hydrological, biogeochemical and ecological processes in water-limited environments; ii) investigate the response of drylands ecosystems to changing climate, elevated CO2, and different land use and management practices; and iii) 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:  Natasha MacBean, Indiana University - Bloomington, Geography, Bloomington, IN, United States
Conveners:  Istem Fer, Boston University, Earth and Environment, Boston, MA, United States, Shishir Basant, Texas A&M University, Ecology & Conservation Biology, College Station, TX, United States and Yong Zhou, Yale University, New Haven, CT, United States
Primary Liaison:  Natasha MacBean, Indiana University - Bloomington, Geography, Bloomington, IN, United States
Chairs:  Natasha MacBean, Indiana University - Bloomington, Geography, Bloomington, IN, United States, Shishir Basant, Texas A&M University, Ecology & Conservation Biology, College Station, TX, United States, Istem Fer, University of Potsdam, Potsdam, Germany and Yong Zhou, Yale University, New Haven, CT, United States
OSPA Liaison:  Shishir Basant, Texas A&M University, Ecology & Conservation Biology, College Station, TX, United States
Co-Organized with:
Biogeosciences, and Hydrology

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

Proposed Co-Organized Session with:
  • H - Hydrology
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
1630 Impacts of global change [GLOBAL CHANGE]
1813 Eco-hydrology [HYDROLOGY]

Abstracts Submitted to this Session:

Over, Under, or Through: How the leakiness of a beaver dam influences groundwater-surface water interactions (373890)
Emily Fairfax, University of Colorado Boulder, Geological Sciences, Boulder, United States and Eric E Small, University of Colorado at Boulder, Department of Geological Sciences, Boulder, United States
Modelling Eco-hydro-geomorphology changes induced by human activities in Australian rangelands (464107)
Patricia M Saco, The University of Newcastle, Centre for Water Security and Environmental Sustainability and School of Engineering, Callaghan, Australia, Mariano Moreno-de las Heras, University of Barcelona, Department of Geography, Barcelona, Spain, Garry R Willgoose, The University of Newcastle, School of Engineering, Faculty of Engineering and Built Environment, Callaghan, NSW, Australia and Samira Azadi, University of Newcastle, Callaghan, Australia
Mortality and Resilience in Sonoran Desert Vegetation under Changing Climate (415163)
Stijn Hantson1, Michael Goulden2, Sarah Kimball3, Travis E Huxman4 and James T. Randerson2, (1)University of California Irvine, Earth System Science, Irvine, CA, United States, (2)University of California Irvine, Earth System Science, Irvine, United States, (3)University of California, Irvine, Center for Environmental Biology, Irvine, CA, United States, (4)University of California, Irvine, Ecology and Evolutionary Biology, Irvine, United States
Remote sensing of canopy nitrogen content in drylands: challenges and solution (395148)
Hamid Dashti1, Nancy F Glenn2, Susan Ustin3, Yi Qi4, Nayani Ilangakoon5, Jessica Mitchell6, Alejandro N Flores7 and Marie-Anne De Graaff5, (1)University of Wisconsin-Madison, Department of Forest and Wildlife Ecology, Madison, United States, (2)Boise State Univ, Boise, United States, (3)Univ California Davis, Davis, United States, (4)University of California, Los Angeles, Earth, Planetary, and Space Science, Los Angeles, United States, (5)Boise State University, Boise, ID, United States, (6)Appalachian State University, Boone, NC, United States, (7)Boise State University, Department of Geosciences, Boise, ID, United States
Spatial Patterning among Savanna Trees in High-Resolution, Large-Scale Data (Invited) (432481)
Jennifer Marlon, Yale University, School of the Environment, New Haven, CT, United States
Drivers and Mechanisms of Dryland Ecosystem Functioning Emerging in More Humid Biomes Under Climate Change (413299)
Hans J De Boeck, Universiteit Antwerpen, Antwerpen, Belgium and José M Grünzweig, Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Jerusalem, Israel
A Synthesis on the Dynamics of Water and Energy Partitioning of Seasonally Dry Forests (464382)
Hugo Alberto Gutiérrez-Jurado, University of Texas at El Paso, Department of Earth, Environmental and Resource Sciences, El Paso, TX, United States, Luis Mendez-Barroso, Instituto Tecnologico de Sonora, Departamento de Ciencias del Agua, Sonora, Mexico, Jorge Uuh-Sonda, Instituto Tecnologico de Sonora, Departamento de Ciencias del Agua y Medio Ambiente, Obregon, SO, Mexico, Bernardo Figueroa, Universidad Nacional Autónoma de México, Institute of Engineering, Sisal, Mexico, Gregorio A Juarez-Cansdales, Instituto Tecnológico de Sonora, Ciencias del Agua, Cd. Obregon, Mexico, Eddie W Banks, Flinders University, National Centre for Groundwater Research and Training, Bedford Park, Australia, Huade Guan, Flinders University, National Centre for Groundwater Research and Training, College of Science and Engineering, Bedford Park, SA, Australia, Hailong Wang, University of Aberdeen, Northern Rivers Institute, School of Geosciences, Aberdeen, United Kingdom and Jingfeng Wang, GA Ins of Tech-Civil & Env Eng, Atlanta, United States
Rainfall Manipulation Experiments in Semi-arid Grassland: What Have We Learned? (357953)
Alan Knapp1, Alison Post2, Robert James Griffin-Nolan3, Ingrid Slette2 and Melinda Dianne Smith1, (1)Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, United States, (2)Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, CO, United States, (3)Colorado State University, Biology, Fort Collins, CO, United States

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