B021
Dryland carbon, water, and energy cycling in a changing world

Session ID#: 161339

Session Description:
Earth’s drylands, defined here as arid and semi-arid regions experiencing seasonal-to-continuous water stress, are critically important to society yet exceptionally vulnerable to climate change. Dryland ecosystems are highly sensitive to variation in hydroclimatic conditions, resulting in tight linkages between carbon, energy, and water cycles. Despite their relatively sparse vegetative cover and low mean primary productivity, dryland ecosystems strongly influence both the trend and the interannual variability in global carbon and water cycles. Yet, current process- and remote sensing-based models used to assess and predict Earth System trends do not accurately represent carbon, water, and energy exchange dynamics in dryland systems. Recent advances in dryland ecohydrology suggest that accounting for cross-scale linkages between carbon, water, and energy cycles is likely crucial for predicting impacts of climate change on regional and global biogeochemical cycles. In this session we seek to: 1) highlight advances in our collective understanding of dryland carbon, water, and energy cycling in a changing world and 2) identify new approaches to address unique dryland-specific challenges, including those related to spatial heterogeneity and scaling of ecosystem pulse responses. We invite submissions from researchers exploring dryland carbon, water, and energy cycles from observational, experimental, modeling, or remote sensing perspectives across a wide range of fields. 
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0426 Biosphere/atmosphere interactions [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
1630 Impacts of global change [GLOBAL CHANGE]

Primary Convener:  Mallory Barnes, Indiana University Bloomington, O'Neill School of Public and Environmental Affairs, Bloomington, IN, United States
Conveners:  Matthew P Dannenberg, University of Iowa, Department of Geographical and Sustainability Sciences, Iowa City, United States and Miriam Johnston, University of Iowa, Department of Geographical and Sustainability Sciences, Iowa City, IA, United States
Student/Early Career Convener:  Miriam Johnston, University of Iowa, Department of Geographical and Sustainability Sciences, Iowa City, IA, United States
 
Observed Global Photosynthesis Response to Changing Rainfall Frequency and Intensity: Contrasting Dryland and Humid Ecosystem Responses (Invited) (1047392)
Andrew Feldman, NASA Postdoctoral Program, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Abhishek Chatterjee, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Joanna Joiner, NASA Goddard Space Flight Ctr., Greenbelt, MD, United States and Benjamin Poulter, NASA GSFC, Biospheric Science, Greenbelt, MD, United States
 
Storage and distribution of soil organic carbon, total nitrogen and CO2 emissions in top and subsoils of different land use types in semi-arid tropical soils (1050416)
Chukwuebuka Christopher Christopher Okolo1, Girmay Gebresamuel2, Amanuel Zenebe3, Mitiku Haile2, Jephter Ebuka Orji4, Chinyere Blessing Okebalama Dr5, Chinedu Emmanuel Eze6, Emmanuel Eze7 and Peter Eze8, (1)Jimma University, Natural Resources Management, Jimma, Ethiopia, (2)Mekelle University, Land Resources Management and Environmental Protection, Mekelle, Ethiopia, (3)Mekelle University, Land Resources Management and Environmental Protection; Institute of Climate and Society, Mekelle, Ethiopia, (4)Alex Ekwueme Federal University Ndufu-Alike, Ndufu-Alike, Nigeria, (5)University of Nigeria, Soil Science, Nsukka, Nigeria, (6)Michael Okpara University of Agriculture Umudike, Umudike, Nigeria, (7)University of Heidelberg, Institute of Geography & Heidelberg Center for the Environment (HCE), Heidelberg, Germany, (8)Botswana International University of Science and Technology, Gaborone, Botswana
 
RainMan: A Global Change Experiment Integrating Proximal Remote Sensing with Direct Measures of Semiarid Grassland Structure and Function (1050575)
Joel A Biederman1, Fangyue Zhang2, Nathan Pierce3, Mostafa Javadian4, Charles J Devine5, Daniel L Potts6, Matthew Roby7, Sasha Reed8, Tianyi Hu9, Matthew P Dannenberg10, Mallory Barnes11, Miriam Johnston12 and William K Smith5, (1)Southwest Watershed Research Center, Tucson, AZ, United States, (2)Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, China, (3)University of Arizona, School of Natural Resources and the Environment, Tucson, AZ, United States, (4)Sharif University of Technology, Civil Engineering, Tehran, Iran, (5)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (6)SUNY College at Buffalo, Buffalo, NY, United States, (7)USDA ARS, Sustainable Agricultural Water Systems Research Unit, Pendleton, United States, (8)U.S. Geological Survey, Southwest Biological Science Center, Moab, UT, United States, (9)University of Arizona, Department of Hydrology and Atmospheric sciencs, Tucson, AZ, United States, (10)University of North Carolina at Chapel Hill, Chapel Hill, United States, (11)Indiana University Bloomington, Bloomington, IN, United States, (12)University of Iowa, Department of Geographical and Sustainability Sciences, Iowa City, IA, United States
 
Dryland productivity under a changing climate: global trends, key drivers, and uncertainties (1054392)
Lixin Wang, Indiana University Purdue University Indianapolis, Department of Earth Sciences, Indianapolis, United States, Wenzhe Jiao, Indiana University Purdue University Indianapolis, Department of Earth Sciences, Indianapolis, IN, United States, Natasha MacBean, Western University, London, Canada, Maria Cristina Rulli, Politecnico di Milano, Department of Civil and Environmental Engineering, Milano, 20133, Italy, Stefano Manzoni, Stockholm University, Physical Geography, Stockholm, Sweden, Giulia Vico, SLU Swedish University of Agricultural Sciences Uppsala, Uppsala, Sweden and Paolo D'Odorico, University of California Berkeley, Environmental Science, Policy, and Management, Berkeley, CA, United States
 
Remotely-sensed Gross Primary Production responds to hot drought in 2020 dry season in the Llanos savanna ecoregion, northern South America (1054525)
Santiago Valencia1,2, Diver E. Marín1 and Juan Camilo Villegas2, (1)GIGA, Escuela Ambiental, Facultad de ingeniería, Universidad de Antioquia, Medellín, Colombia, Medellín, Colombia, (2)Grupo de Investigación en Ecología Aplicada, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia Medellín, Colombia, Medellín, Colombia
 
Annual Precipitation Explains Variability in Dryland Vegetation Greenness Globally but not Locally (1080599)
Anna Ukkola, University of New South Wales, Sydney, NSW, Australia, Martin Gerard De Kauwe, School of Biological Sciences, University of Bristol, Bristol, United Kingdom, Michael L Roderick, The Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, Arden Burrell, Woodwell Climate Research Center, Falmouth, MA, United States, Peter Lehmann, ETH Zurich, Departement of Environmental Systems Science, Zurich, Switzerland and Andy Pitman, ARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, Australia
 
Interannual and Seasonal CO2 Exchange and Rainfall Dynamics in a Northern Chihuahuan Desert Shrubland (1093239)
Marguerite Mauritz1, Gesuri Ramirez1, Anthony Darrouzet-Nardi2, Gerald N Flerchinger3, Libia Gonzalez4, David P Huber5, Aline Jaimes6, Christine M Laney7, Marcy E Litvak8, Robin Luna9, Xia Song1 and Craig E. Tweedie1, (1)University of Texas at El Paso, El Paso, TX, United States, (2)University of Texas at El Paso, Biological Sciences, El Paso, TX, United States, (3)USDA Agriculture Research Service, Northwest Watershed Research Center, Boise, ID, United States, (4)Freeport Minerals Corporation, Phoenix, United States, (5)USDA-ARS, Northwest Watershed Research Center, Boise, United States, (6)University of California Berkeley, School of Information, Berkeley, United States, (7)Battelle, National Ecological Observatory Network (NEON), Boulder, CO, United States, (8)University of New Mexico, Department of Biology, Albuquerque, NM, United States, (9)National Ecological Observatory Network, Boulder, United States
 
Deep Respiration in a Semi-arid Juniper Oak-woodland and Implications for Coupled Carbon and Water Cycling (1097129)
Rebekah Garza1, Josef Schmidt1, Morgan Abbruscato1, Daphne Smith1, Logan Schmidt2, Xochithlinda Gonzales1, Johari Weaver3, Suvan Cabraal1, Ashley M Matheny2 and Daniella Marie Rempe2, (1)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, United States, (2)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States, (3)University of Texas at Austin, Department of Integrative Biology, Austin, United States
 
Carbon cycling through the critical zone in irrigated and unirrigated drylands (1105198)
Anthony Darrouzet-Nardi1, Briana A. Salcido2, Viridiana Orona3, Valeria Molina4, Tanzila Hanif5, Zahra Ghahremani5, David Bjorneberg6, Gerald N Flerchinger7, David P Huber8, Marguerite Mauritz9, Jennifer L Pierce10, Craig E. Tweedie9 and Lixin Jin2, (1)University of Texas at El Paso, Biological Sciences, El Paso, TX, United States, (2)University of Texas at El Paso, Department of Earth, Environmental and Resource Sciences, El Paso, TX, United States, (3)University of Texas at El Paso, Environmental Science, El Paso, United States, (4)University of Texas at El Paso, Department of Earth, Environmental and Resource Sciences, El Paso, United States, (5)Boise State University, Department of Geoscience, Boise, United States, (6)USDA Agricultural Research Service Kimberly, Kimberly, United States, (7)USDA Agriculture Research Service, Northwest Watershed Research Center, Boise, ID, United States, (8)USDA-ARS, Northwest Watershed Research Center, Boise, United States, (9)University of Texas at El Paso, El Paso, TX, United States, (10)Boise State University, Boise, ID, United States
 
Biotic and Abiotic Soil Contributions to Dryland Carbon Cycling: Insights from a Long-term Climate Change Experiment (1113142)
Anastasia Vladimirovna Makhnykina1, Cara M Lauria2, David Joseph Moore3, William K Smith3 and Sasha Reed4, (1)Siberian Federal University, Krasnoyarsk, Russia, (2)U.S. Geological Survey, Southwest Biological Science Center, Moab, United States, (3)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (4)U.S. Geological Survey, Southwest Biological Science Center, Moab, UT, United States
 
Climate Regulates the Consequences of Drought and Physical Disturbance for Dryland Ecosystem Structure and Function (Invited) (1117739)
Brooke Bossert Osborne, Utah State University, Environment and Society, Moab, United States, Matthew P Dannenberg, University of Iowa, Department of Geographical and Sustainability Sciences, Iowa City, United States, Samiel Jordan, Arizona State University, School of Life Sciences, Tempe, United States, Steven Lee, New Mexico State University, Department of Biology, Las Cruces, United States, Osvaldo Sala, Arizona State University, School of Life Sciences, Tempe, AZ, United States, William K Smith, University of Arizona, School of Natural Resources and the Environment, Tucson, United States, Tyson Terry, Utah State University, Wildland Resources Department, Logan, United States, Scott Ferrenberg, University of Montana, Department of Ecosystem and Conservation Sciences, Missoula, United States and Sasha Reed, U.S. Geological Survey, Southwest Biological Science Center, Moab, UT, United States
 
Evapotranspiration Partitioning in Drylands Using Eddy Covariance and ECOSTRESS Data (1120918)
Emma Reich1, Kimberly E Samuels-Crow2, John B Bradford3, Marcy E Litvak4, Daniel R Schlaepfer5,6 and Kiona Ogle1,7, (1)Northern Arizona University, School of Informatics, Computing, and Cyber Systems, Flagstaff, AZ, United States, (2)Northern Arizona University, School of Informatics, Computing, and Cyber Systems, Flagstaff, United States, (3)U.S. Geological Survey, Southwest Biological Science Center, Flagstaff, AZ, United States, (4)University of New Mexico, Department of Biology, Albuquerque, NM, United States, (5)Northern Arizona University, Center for Adaptable Western Landscapes, Flagstaff, United States, (6)U.S. Geological Survey, Southwest Biological Science Center, Flagstaff, United States, (7)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States
 
Parameter Sensitivity and Transferability for Simulating ET and GEP of Sagebrush Ecosystems across a Climate Gradient (1122858)
Gerald N Flerchinger, USDA Agriculture Research Service, Northwest Watershed Research Center, Boise, ID, United States, Xiaosheng Chu, Northwest Agriculture & Forest University, College of Water Resources and Architectural Engineering, Yangling, China, Kathleen A Lohse, Idaho State University, Biological Sciences, Idaho Falls, United States and Mark S Seyfried, USDA-ARS, Northwest Watershed Research Center, Boise, United States
 
Lessons from a next generation carbon ranching experiment in US Northern Great Plains (1124993)
Kurt Reinhart, Richard Waterman, Matt Rinella and Lance Vermeire, USDA-ARS Livestock & Range Research Laboratory, Miles City, United States
 
Stormwater Infiltration Berms Impact Soil Microbial Activity and Community Composition in an Urban Area (1129087)
David Roberts, University of Texas at San Antonio, Department of Integrative Biology, San Antonio, TX, United States and Allison Veach, University of Texas at San Antonio, Department of Integrative Biology, San Antonio, United States
 
Temporal Trends in Dryland Soil Carbon Fluxes in Response to Artificial and Natural Pulsed Moisture Events (1134700)
Briana A. Salcido1, Anthony Darrouzet-Nardi2, Valeria Molina3 and Lixin Jin1, (1)University of Texas at El Paso, Department of Earth, Environmental and Resource Sciences, El Paso, TX, United States, (2)University of Texas at El Paso, Biological Sciences, El Paso, TX, United States, (3)University of Texas at El Paso, Department of Earth, Environmental and Resource Sciences, El Paso, United States
 
Weakening greening trend in the late growing season across mid-to-high latitudes in the Northern Hemisphere and its drivers (1136308)
Wen Zhang1, David Joseph Moore2, William K Smith2 and Matthew P Dannenberg3, (1)University of Arizona, School of Natural Resources and the Environment,, Tucson, United States, (2)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (3)University of Iowa, Department of Geographical and Sustainability Sciences, Iowa City, United States
 
Importance of soil hydrology in understanding location and persistence of soil carbon in semiarid loess-paleosol sequence (1155997)
Taylor McDowell1, Joseph A Mason2, Tien Vo1 and Erika Marin-Spiotta3, (1)University of Wisconsin Madison, Madison, WI, United States, (2)University of Wisconsin-Madison, Geography, Madison, WI, United States, (3)University of Wisconsin Madison, Department of Geography, Madison, WI, United States
 
Soil Microbial Activities Following a Summer Monsoon Rain Event Vary With Severity of Prior Winter Drought (1172187)
Harrison Friedman1, Rachel E Gallery2, Nathan Pierce3, William K Smith2 and Joel A Biederman4,5, (1)University of Arizona, Tucson, AZ, United States, (2)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (3)University of Arizona, School of Natural Resources and the Environment, Tucson, AZ, United States, (4)University of Arizona, Tucson, United States, (5)USDA-ARS, Southwest Watershed Research Center, Tucson, AZ, United States
 
Considering the influences of non-linear plant responses to climate variation and disturbances for dryland productivity (1184637)
Steven Lee1, Samiel Jordan2, Brooke Bossert Osborne3, Sasha Reed4, Akasha Faist5 and Scott Ferrenberg5, (1)New Mexico State University Main Campus, Las Cruces, NM, United States, (2)Arizona State University, School of Life Sciences, Tempe, United States, (3)Brown University, Department of Ecology and Evolutionary Biology, Providence, RI, United States, (4)U.S. Geological Survey, Southwest Biological Science Center, Moab, UT, United States, (5)University of Montana, Department of Ecosystem and Conservation Sciences, Missoula, United States
 
Improving Observations of Vegetation Water Content and Stress in the Western United States Using Integrated Microwave Remote Sensing and Dynamic Vegetation Modeling (1190348)
Charles John Devine1, Andrew Feldman2, William K Smith3, David Joseph Moore3 and Benjamin Poulter4, (1)University of Arizona, Tucson, AZ, United States, (2)NASA Goddard Space Flight Center, Greenbelt, United States, (3)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (4)NASA GSFC, Biospheric Science, Greenbelt, MD, United States
 
Altered rainfall regimes modify microbial biomass and activity in Australian drylands (1197543)
Jerzy Szejgis, Richmond, New South Wales, AUSTRALIA, Uffe Nielsen, University of Western Sydney, Hawkesbury Institute for the Environment, Penrith, Australia, Yolima Carillo, Western Sydney University, Hawkesbury Institute for the Environment, Penrith, NSW, Australia and Feike A Dijkstra, The University of Sydney, Eveleigh, NSW, Australia
 
Changes in climate, aboveground net primary productivity, and their relationship on the US Great Plains over the last 40 years (1201253)
Ingrid Slette, National Center for Ecological Analysis and Synthesis, Santa Barbara, United States
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