B018
Assessing the Impacts of Climate Variability and Human Activities on Grasslands using Multi-source Data
Session ID#: 77403
Session Description:
Grasslands, occupying ~30% of the world’s land area, provide various ecological (e.g., biodiversity) and economic (e.g., forage for livestock production) benefits. However, grasslands are under pressure due to frequent occurrence of climate extremes and human activities. Sustainable management of grassland ecosystems requires continuous monitoring. Data from multiple sources such as field surveys, controlled experiments, eddy covariance observations, remote and proximal sensing, and model outputs are required to better understand the impacts of climate variability and human activities on grasslands. We seek contributions on: (1) evaluating the impacts of climate (e.g., drought/climate variability) and/or different management practices (e.g., burning, grazing, and hay harvesting) on grassland productivity, species composition, and carbon-water relations; (2) large-scale analysis of grassland conditions (e.g., loss or degradation of grasslands); and (3) interactions of climate and human activities on grasslands. Both field and modeling studies or model-data integration are welcome. Studies on integrating multi-source data are strongly encouraged.
Index Terms:
0402 Agricultural systems [BIOGEOSCIENCES]
0480 Remote sensing [BIOGEOSCIENCES]
1616 Climate variability [GLOBAL CHANGE]
1632 Land cover change [GLOBAL CHANGE]
Primary Convener: Yuting Zhou, Oklahoma State University, Department of Plant and Soil Sciences, Stillwater, OK, United States
Conveners: Prasanna H Gowda, USDA-ARS, El Reno, OK, United States, Pradeep Wagle, USDA-ARS Grazinglands Research Laboratory, El Reno, OK, United States and K. Colton Flynn, Oklahoma State University, Fayetteville, United States
Primary Liaison: Pradeep Wagle, USDA-ARS Grazinglands Research Laboratory, El Reno, OK, United States
Managing Tallgrass Prairies for Productivity and Ecological Function: A Long Term Grazing Experiment in the Southern Great Plains, USA (Invited) (499288)
Jean L. Steiner1, Patrick j Starks2, James P.S. Neel3, Brian K Northup2, Kenneth E. Turner3, Prasanna H Gowda2, Sam Coleman4, Michael Brown4, Yuting Zhou5, Pradeep Wagle6, Brekke Peterson7 and Xiangming Xiao8, (1)Kansas State University, Adjunct, Manhattan, KS, United States, (2)USDA-ARS, El Reno, OK, United States, (3)USDA-ARS, Grazinglands Research Laboratory, El Reno, OK, United States, (4)USDA ARS, Retired, El Reno, OK, United States, (5)Oklahoma State University, Geography, Stillwater, OK, United States, (6)University of Oklahoma Norman Campus, Norman, OK, United States, (7)USDA ARS, El Reno, OK, United States, (8)Department of Microbiology and Plant Biology, Center for Spatial Analysis, University of Oklahoma, Norman, United States
Response of Tallgrass Prairie to Management in the U.S. Southern Great Plains: Site Descriptions, Management Practices, and Eddy Covariance Instrumentation for a Long-Term Experiment (503360)
Pradeep Wagle1, Prasanna H Gowda2, Brian K Northup2 and Patrick j Starks2, (1)USDA-ARS Grazinglands Research Laboratory, El Reno, OK, United States, (2)USDA-ARS, El Reno, OK, United States
Plant physiological responses following experimental drought on intact shrub-grass communities in tallgrass prairie (516145)
Jesse B Nippert1, Rachel Keen1, Seton Bachle1, Mark Sandwick1, Emmett Greg Tooley2 and Kimberly O'Keefe3, (1)Kansas State University, Division of Biology, Manhattan, KS, United States, (2)Fort Hays State University, Biological Sciences, Hays, KS, United States, (3)University of Wisconsin-Madison, Botany, Madison, WI, United States
Responses of tallgrass prairie to continuous and rotational grazing under different climate conditions (518010)
Yuting Zhou, Oklahoma State University, Geography, Stillwater, OK, United States, Prasanna H Gowda, USDA-ARS, El Reno, OK, United States, Pradeep Wagle, University of Oklahoma Norman Campus, Norman, OK, United States; USDA-ARS Grazinglands Research Laboratory, El Reno, OK, United States, Shengfang Ma, Independent Researcher, Stillwater, United States, James P.S. Neel, USDA-ARS, Grazinglands Research Laboratory, El Reno, OK, United States, Vijaya Gopal Kakani, Oklahoma State University, Plant and Soil Sciences, Stillwater, OK, United States and Jean L. Steiner, USDA ARS, Manhattan, United States; Kansas State University, Adjunct, Manhattan, KS, United States
Comparing the impacts of continuous and rotational grazing on tallgrass prairie landscape using the National Agriculture Imagery Program imagery (518124)
Shengfang Ma1, Yuting Zhou2, Prasanna H Gowda3, Patrick j Starks3, Jean L. Steiner4 and James P.S. Neel4, (1)Independent Researcher, Stillwater, United States, (2)Oklahoma State University, Geography, Stillwater, OK, United States, (3)USDA-ARS, El Reno, OK, United States, (4)USDA-ARS, Grazinglands Research Laboratory, El Reno, OK, United States
Responses of ecosystem-atmosphere exchange to precipitation pulses in adjacent native and introduced prairie pastures (523351)
K. Colton Flynn1, Shengfang Ma2, Pradeep Wagle3, Yuting Zhou4, Prasanna H Gowda5, Patrick j Starks5, Rajen Bajgain3, Xiangming Xiao6, Jeffrey B Basara7 and Jean L. Steiner8, (1)Oklahoma State University, Fayetteville, United States, (2)Independent Researcher, Stillwater, United States, (3)University of Oklahoma Norman Campus, Norman, OK, United States, (4)Oklahoma State University, Geography, Stillwater, OK, United States, (5)USDA-ARS, El Reno, OK, United States, (6)Department of Microbiology and Plant Biology, Center for Spatial Analysis, University of Oklahoma, Norman, United States, (7)University of Oklahoma, School of Meteorology, Norman, OK, United States, (8)USDA ARS, Manhattan, United States
Impact of extended dry and wet periods on a temperate grassland (526201)
Olga Vindušková1, Gaby Deckmyn2, Karen Vancampenhout3, Simon Reynaert1, Lingjuan Li1, Hans J De Boeck1, Erik Verbruggen1, Han Asard4, Gerrit Beemster4, Kris Laukens5 and Ivan Nijs1, (1)University of Antwerp, Plants and Ecosystems Research Center, Dept of Biology, Antwerp, Belgium, (2)University of Antwerp, Plants and Ecosystems Research Center, Dept of Biology, Antwerpen, Belgium, (3)KU Leuven, Department of Earth and Environmental Sciences, Leuven, Belgium, (4)University of Antwerp, Integrated Molecular Plant Physiology Research, Dept of Biology, Antwerp, Belgium, (5)University of Antwerp, ADREM Data Lab, Dept Comp Sci & Math, Antwerp, Belgium
Disentangling Fire and Climate Impacts on Water and Carbon Cycling in Grasslands (557626)
Nathaniel A Brunsell, University of Kansas, Department of Geography and Atmospheric Science, Lawrence, KS, United States, Gabriel De Oliveira, University of Kansas, Department of Geography and Atmospheric Science, Lawrence, United States and Tristan Green, University of Kansas, Lawrence, KS, United States
Variability in gross primary productivity of native and managed pastures to climatic variability and management practices (595544)
Rajen Bajgain1, Xiangming Xiao2, Jeffrey B Basara3, Russell Doughty4, Xiaocui Wu5, Pradeep Wagle1, Yuting Zhou6, Prasanna H Gowda7 and Jean L. Steiner8, (1)University of Oklahoma Norman Campus, Norman, OK, United States, (2)Department of Microbiology and Plant Biology, Center for Spatial Analysis, University of Oklahoma, Norman, United States, (3)University of Oklahoma, School of Meteorology, Norman, OK, United States, (4)University of Oklahoma, Department of Microbiology and Plant Biology, Center for Spatial Analysis, Norman, OK, United States, (5)University of Oklahoma, Department of Microbiology and Plant Biology, Norman, OK, United States, (6)Oklahoma State University, Geography, Stillwater, OK, United States, (7)USDA-ARS, El Reno, OK, United States, (8)USDA ARS, Manhattan, United States
How increasing variability in precipitation may affect terrestrial primary production depends on mean precipitation (599244)
Enqing Hou1,2, Marcy E Litvak3, Jennifer Rudgers4, Lifen Jiang1,2, Scott L Collins4, William Pockman4 and Yiqi Luo1,2, (1)Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ, United States, (2)Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, United States, (3)University of New Mexico, Biology, Albuquerque, NM, United States, (4)Department of Biology, MSC03-2020, University of New Mexico, Albuquerque, NM, United States
The seasonal dynamics of gross primary production and solar-induced chlorophyll fluorescence in U.S. semi-arid grasslands (600652)
Anping Chen, Colora do State University, Fort Collins, CO, United States, Xu Lian, Peking University, Beijing, China, Jiafu Mao, Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, United States and Alan Knapp, Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, CO, United States
Understanding Interannual Forage Production Variability of Annual Grassland in an Era of Changing Climate using Satellite Remote Sensing Observations (601287)
Han Liu1, Yufang Jin2, Randy A Dahlgren3, Leslie M Roche1, Anthony T O'Geen1 and Danny J Eastburn4, (1)University of California Davis, Davis, CA, United States, (2)University of California - Davis, Land, Air, and Water Resources, Davis, CA, United States, (3)Univ California Davis, Davis, CA, United States, (4)University of California, Davis, Davis, United States
Seasonal Effects of Experimental Warming on Soil Biogeochemistry and Plant Functional Diversity in Pacific Northwest Prairies (604679)
Barbara Bomfim1, Hilary Rose Dawson2, Lucas Silva3, Brendan J M Bohannan4, Scott D Bridgham4, Paul Reed5, Graham Bailes6, Bart R Johnson7 and Laurel Pfeifer-Meister4, (1)Eugene, OR, United States, (2)University of Oregon, Eugene, Institute of Ecology and Evolution, Eugene, OR, United States, (3)University of Oregon, Department of Geography, Eugene, OR, United States, (4)University of Oregon, Eugene, OR, United States, (5)University of Oregon, Institute of Ecology and Evolution, Eugene, United States, (6)University of Oregon, Eugene, United States, (7)University of Oregon, Landscape Architecture, Eugene, OR, United States
Effects of Precipitation Treatments on Switchgrass Chlorophyll Content, Photosynthesis, Biomass, and Yield (614791)
Adrian Harris1, Dalal H Almotir1, Dilovan Yahya1, Hashim Alsadah1 and Dafeng Hui2, (1)Tennessee State University, Department of Biological Sciences, Nashville, TN, United States, (2)Tennessee State University, Nashville, TN, United States
Application of Existing Long-Term Studies to Develop Management Options that Reduce Production Risks and Enhance Ecosystem Services Under Increased Weather Variability (615070)
David Toledo, USDA-ARS Northern Great Plains Research Laboratory, Mandan, United States, John Hendrickson, USDA ARS, Northern Great Plains Research Lab, Mandan, ND, United States, Mark A Liebig, USDA-ARS/NGPRL, Mandan, ND, United States, Scott Kronberg, USDA-ARS, Northern Great Plains Research Laboratory, Mandan, ND, United States and David Archer, USDA-ARS, NORTHERN GREAT PLAINS RESEARCH LAB, Mandan, ND, United States
Interpreting Historical Maps to Localize Suitable Restoration Areas for Coastal Prairie Habitat in the San Juan Islands of Washington State, USA (620281)
Dineh Judd1, Sylvie Arques1, Sherry L. Palacios2 and Melissa Peacock3, (1)Northwest Indian College, Native Environmental Science, Bellingham, WA, United States, (2)NASA Ames Research Center, Moffett Field, CA, United States, (3)Northwest Indian College, Salish Sea Research Center, Bellingham, WA, United States
Impacts of climate and switchgrass cultivar on diurnal and seasonal variations of soil respiration at three sites across a latitudinal gradient in the U.S. (621923)
Dafeng Hui1, Roser Matamala2, Felix Fritschi3, Thomas E Juenger4, Julie D Jastrow5, Scott M Hofmann2, Joel Reyes-Cabrera6 and Jason Bonnette7, (1)Tennessee State University, Department of Biological Sciences, Nashville, TN, United States, (2)Argonne National Laboratory, Argonne, IL, United States, (3)University of Missouri, Plant Sciences, Columbia, United States, (4)University of Texas at Austin, Austin, TX, United States, (5)Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, (6)University of Missouri, Columbia, United States, (7)University of Texas at Austin, Austin, United States
