B12A:
Degraded and Second-Growth Tropical Forests in the Earth System I

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Session ID#: 32683

Session Description:
Land use and land cover changes in tropical forest ecosystems have global impacts on carbon, nutrient, water, and surface energy budgets. Changes in land use are not restricted to deforestation. Remaining tropical forests are often near the edge of deforested areas and have been degraded from logging, fire, livestock grazing, and fragmentation. Second growth forests in previously deforested areas are common in some landscapes, and reforestation programs aim to rapidly expand tropical forest cover in coming years. While important, the contribution of degraded and second growth forests to biogeochemistry, water, and energy cycles is still poorly quantified. This session welcomes contributions from field measurements and experiments, remote sensing observations, and models that advance our understanding of the role of second growth and degraded tropical forests in the Earth System.
Primary Convener:  Marcos Longo, Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, CA, United States
Conveners:  Michael Maier Keller, US Forest Service San Juan, International Institute of Tropical Forestry, San Juan, PR, United States and Douglas C Morton, NASA Goddard Space Flight Center, Greenbelt, United States
Chairs:  Douglas C Morton, NASA Goddard Space Flight Center, Greenbelt, United States, Marcos Longo, NASA Jet Propulsion Laboratory, Pasadena, CA, United States and Michael Maier Keller, US Forest Service San Juan, International Institute of Tropical Forestry, San Juan, PR, United States
OSPA Liaison:  Douglas C Morton, NASA Goddard Space Flight Center, Greenbelt, United States

Cross-Listed:
  • GC - Global Environmental Change
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0426 Biosphere/atmosphere interactions [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
1632 Land cover change [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Fragmentation, topography, and forest age modulate impacts of drought on a tropical forested landscape in eastern Puerto Rico (Invited) (240676)
Maria Uriarte, Columbia University of New York, Palisades, NY, United States, Naomi Schwartz, University of British Columbia, Department of Geography, Vancouver, BC, Canada and Andrew Budsock, Columbia University of New York City, New York, NY, United States
Litter decomposition, N2-fixer abundance, and microbial dynamics govern tropical dry forest recovery to land use change (274231)
Annette Trierweiler, University of Notre Dame, Environmental Change Initiative, Notre Dame, IN, United States, Jennifer S Powers, University of Minnesota, College of Biological Sciences, Saint Paul, MN, United States, Xiangtao Xu, Cornell University, Ecology and Evolutionary Biology, Ithaca, NY, United States, Maria Gabriela Gei, University of Minnesota, College of Biological Sciences, Saint Paul, United States and David Medvigy, University of Notre Dame, Department of Biological Sciences, Notre Dame, IN, United States
Successional dynamics drive tropical forest nutrient limitation (299907)
Cleo Chou, Princeton University, Princeton, NJ, United States and Lars O. O. Hedin, Princeton University, Ecology and Evolutionary Biology, Princeton, NJ, United States
Assessing biomass accumulation in second growth forests of Puerto Rico using airborne lidar (273479)
Sebastian Martinuzzi, University of Wisconsin Madison, Department of Forest and Wildlife Ecology, Madison, United States, Bruce Cook, NASA Goddard Space Flight Center, Biospheric Sciences Laboratory, Greenbelt, United States, Lawrence A Corp, Sigma Space Corporation, Lanham, MD, United States, Douglas C Morton, NASA Goddard Space Flight Center, Greenbelt, United States, Eileen Helmer, USDA Forest Service, International Institute of Tropical Forestry, San Juan, United States and Michael Keller, USDA Forest Service, Rio Piedras, United States
Inverted edge effects on carbon stocks in human-dominated landscapes (289445)
Isabella Romitelli, University of Sao Paulo, Sao Paulo, United States, Michael Keller, JPL/NASA/Caltech, Pasadena, United States, Simone A Vieira, University of Campinas, Center of Environmental Studies and Research, Piracicaba, Brazil, Jean Paul Metzger, University of Sao Paulo, Department of Ecology, Sao Paulo, Brazil and Leandro Reverberi Tambosi, Universidade Federal do ABC, Santo André, Brazil
Lidar-based multinomial classification algorithms for tropical forest degradation status: Implications for biomass estimation (286336)
Paul Duffy, Neptune and Company, Lakewood, United States, Michael Keller, JPL/NASA/Caltech, Pasadena, United States, Marcos Longo, Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, CA, United States, Douglas C Morton, NASA Goddard Space Flight Center, Greenbelt, United States, Maiza Nara dos-Santos, Brazilian Agricultural Research Corporation (Embrapa), Embrapa Agricultural Informatics, Campinas, Brazil and Ekena Rangel Pinagé, Oregon State University, Corvallis, OR, United States

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