GC036
Expansion and Intensification of the Tropical Agricultural Footprint: Trends, Causes, and Consequences
Session ID#: 81894
Session Description:
Agricultural systems across the tropics have changed rapidly in the last three decades, expanding in area and increasing in productivity. Industrial cash crops are replacing both natural ecosystems and traditional agricultural production, even as timber plantations and agroforestry expand. Widespread shifts in land use and crop species have impacted food and water provisioning, carbon sequestration, and biodiversity from local to global scales.
Despite their importance, changes in land cover and land use of tropical agro-ecosystems remain challenging to monitor, explain, and predict. Remote sensing of the diverse crop species and farm types found in the tropics and sub-tropics is a rapidly developing field, as is our understanding of the impacts of agricultural intensification on societies and ecosystems. In this session, we seek contributions that characterize changes in agricultural land cover and land use using satellite data and, where possible, place them in the context of anthropogenic drivers and socioecological change.
Index Terms:
0402 Agricultural systems [BIOGEOSCIENCES]
0480 Remote sensing [BIOGEOSCIENCES]
1632 Land cover change [GLOBAL CHANGE]
Primary Convener: Matthew E Fagan, University of Maryland Baltimore County, Baltimore, MD, United States
Conveners: Meha Jain, Columbia University, New York, NY, United States, Victor Gutierrez-Velez, Temple University, Department of Geography and Urban Studies, Philadelphia, PA, United States and Marcia Macedo, Woods Hole Research Center, Falmouth, MA, United States
Primary Liaison: Matthew E Fagan, Columbia University, New York, NY, United States
Changes in South American Hydroclimate under Projected Amazonian Deforestation (609720)
Jorge Eiras-Barca, Urbana, IL, United States, Francina Dominguez, University of Illinois at Urbana Champaign, Department of Atmospheric Sciences, Urbana, IL, United States, Zhao Yang, Pacific Northwest National Lab, Richland, WA, United States, Divyansh Chug, University of Illinois at Urbana Champaign, Urbana, IL, United States, Raquel Nieto, University of Vigo, Environmental Physics Laboratory, Ourense, Spain, Luis Gimeno, Facultad Ciencias Ourense, Environmental Physics Laboratory, Ourense, Spain and Gonzalo Miguez-Macho, Univ of Santiago De Compostela, Santiago De Composte, Spain
Advancing the Uptake of Earth Observations for Informing Agricultural Decisions in Eastern Africa under the NASA Harvest and GEOGLAM Programs (Invited) (618674)
Inbal Becker-Reshef1, Catherine Nakalembe2, Christina Jade Justice1, Brian Barker3, Ritvik Sahajpal4, Michael Laurence Humber3, Antonio Sanchez3, Sergii Skakun5, Alyssa K Whitcraft1, Matthew Hansen4, Ian Jarvis6 and Christopher Owen Justice7, (1)University of Maryland College Park, Geographical Sciences, College Park, MD, United States, (2)UMD, College Park, United States, (3)University of Maryland College Park, College Park, MD, United States, (4)University of Maryland, College Park, MD, United States, (5)University of Maryland College Park, College Park, United States, (6)Agriculture and Agri-Food Canada, Agroclimate, Geomatics and Earth Observation Division, Ottawa, ON, Canada, (7)University of Maryland, Geographical Sciences, College Park, MD, United States
Expansion and de-intensification of Brazil’s agricultural frontier into areas with a less stable climate (619967)
Ludmila Rattis1, Paulo M Brando2, Marcia Macedo1 and Michael Thomas Coe3, (1)Woods Hole Research Center, Falmouth, MA, United States, (2)Carnegie Institution for Science, Washington, DC, United States, (3)The Woods Hole Research Center, Falmouth, MA, United States
Land-use change at four landscapes in the Peruvian Amazon (627350)
Matthew Marcus, Temple University, Philadelphia, PA, United States, Victor Gutierrez-Velez, Temple University, Department of Geography and Urban Studies, Philadelphia, PA, United States and Peter Cronkleton, Center for International Forestry Research, Bogor, Indonesia
Multi temporal assessment of agriculture-driven land cover change in tropical savannas; the Colombian Altillanura. (630507)
Jeronimo Rodriguez, Temple University, Geography and Urban Studies, Philadelphia, PA, United States and Victor Gutierrez-Velez, Temple University, Department of Geography and Urban Studies, Philadelphia, PA, United States
Potential environment stress of land and water in Brazil under future social-economic development pathways through global trade (631231)
Honglin Zhong1, Laixiang Sun1 and Kuishuang Feng2, (1)University of Maryland College Park, Department of Geographical Sciences, College Park, MD, United States, (2)University of Maryland College Park, Geographical Sciences, College Park, MD, United States
Forest transitions in the Brazilian Atlantic Forest: has agricultural intensification ceded way to forest regeneration in this endangered biome? (495574)
Pedro Ribeiro Piffer1, Adriane Calaboni2, Marcos Rosa3 and Maria Uriarte1, (1)Columbia University, New York, NY, United States, (2)Universidade Federal do ABC, São Paulo, Brazil, (3)Universidade de São Paulo, São Paulo, Brazil
Reversals of reforestation across Latin America limit climate mitigation potential of tropical forests (517247)
Naomi Schwartz, University of British Columbia, Geography, Vancouver, Canada, T. Mitchell Aide, University of Puerto Rico Rio Piedras Campus, San Juan, United States, Jordan Graesser, University of Queensland, Brisbane, Australia, H. Ricardo Grau, Universidad Nacional de Tucuman, Tucuman, Argentina and Maria Uriarte, Columbia University, New York, NY, United States
Large-scale land acquisitions catalyze commodity frontier expansion in Argentina’s Dry Chaco (551152)
Nicholas Magliocca, University of Alabama, Tuscaloosa, AL, United States, Ariane C de Bremond, Centre for Development and Environment, University of Bern, Bern, Switzerland and Evan A Ellicott, University of Maryland, College Park, MD, United States
Why burning so often? Three decades of anthropogenic fire activity in a Neotropical agricultural frontier. (556488)
Gabriel Antunes Daldegan1, Frank W Davis2, Dar A Roberts3 and Fernanda Ribeiro1, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)University of California, Santa Barbara, CA, United States, (3)University of California Santa Barbara, Department of Geography, Santa Barbara, CA, United States
Is Forest Code legislation protecting Neotropical savanna habitats in agricultural landscapes? A high-resolution Gap analysis of the Brazilian Cerrado (564268)
Fernanda Ribeiro1, Frank W Davis2, Dar A Roberts3, Kelly K Caylor2, Laura L Hess1, Gabriel Antunes Daldegan1 and Fernanda Thiesen Brum4, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)University of California, Santa Barbara, CA, United States, (3)University of California Santa Barbara, Department of Geography, Santa Barbara, CA, United States, (4)UFPR Federal University of Parana, Department of Ecology and Conservation, Parana, Brazil
Multi-decadal expansion of intensive cropland land use in South America (Invited) (588452)
Viviana Zalles1, Matthew Hansen1, Peter Potapov1, Andre Lima1 and Marcos Adami2, (1)University of Maryland, College Park, MD, United States, (2)INPE National Institute for Space Research, Sao Jose dos Campos, Brazil
Residual Soil Phosphorus in Tropical Oxisols: An Opportunity to Enhance Fertilizer Use Efficiency? (594306)
Lauren Bomeisl, University of Vermont, Burlington, VT, United States, Eric D. Roy, University of Vermont, Rubenstein School of Environment and Natural Resources, Burlington, VT, United States, Stephen Porder, Brown University, Ecology and Evolutionary Biology, Providence, RI, United States, Christopher Neill, Woods Hole Research Center, Falmouth, MA, United States and Paulo M Brando, The Woods Hole Research Center, Falmouth, MA, United States
The Cattle Connection: Quantifying greenhouse gas emissions from small reservoirs in Brazil’s agricultural heartland (595603)
Marcia Macedo1, Sarah Ludwig1,2, Kylen Solvik3, Paul Lefebvre1, João Vitor Silva Costa4, Leonardo Maracahipes-Santos5 and Kathleen E Savage1, (1)Woods Hole Research Center, Falmouth, MA, United States, (2)Columbia University of New York, Palisades, United States, (3)University of Colorado at Boulder, Boulder, CO, United States, (4)Universidade Federal de Goiás, LAPIG, Goiânia, Brazil, (5)IPAM Amazonia, Canarana, Brazil
