Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Surface Energy Dynamics and Canopy Structural Properties in Intact and Disturbed Forests in the Southern Amazon

Journal Article · · Journal of Geophysical Research. Biogeosciences
DOI:https://doi.org/10.1029/2023jg007465· OSTI ID:2234043
 [1];  [2];  [3];  [4];  [5];  [6]
  1. University of Technology Sydney (Australia); Oregon State University, Corvallis, OR (United States)
  2. Pacific Northwest Research Station, Corvallis, OR (United States)
  3. California Institute of Technology (CalTech), Pasadena, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  4. University of Florida, Gainesville, FL (United States)
  5. California Institute of Technology (CalTech), Pasadena, CA (United States)
  6. University of Technology Sydney (Australia)
The Brazilian Amazon has been a focus of land development with large swaths of forests converted to agriculture. Forest degradation by selective logging and fires has accompanied the agricultural frontier and has resulted in significant impacts on Amazonian ecosystems. Changes in forest structure resulting from forest disturbances have large impacts on the surface energy balance, including on land surface temperature (LST) and evapotranspiration (ET). This study's objective is to assess the effects of forest disturbances on water fluxes and forest structure in a transitional forest site in the Southern Amazon. We used ET and LST products from MODIS and Landsat 8 and GEDI-derived forest structure data to address our research questions. We found that disturbances induced seasonal water stress, more pronounced in croplands/pastures than in forests (differences up to 20% in the dry season), and more pronounced in second-growth and recently burned areas than in logged and intact forests (differences up to 12% in the dry season). Moreover, ET and LST were negatively related, with more consistent relationships across disturbance classes in the dry season (R2: 0.41–0.87) than in the wet season (R2: 0.18–0.49). Forest and cropland or pasture classes showed contrasting relationships in the dry season. Finally, we found that forest structure exhibited stronger relationships with ET and LST in the most disturbed forests (R2: 0.01–0.43) than in the least disturbed forests (R2 < 0.05). Our findings help to elucidate degraded forests functioning under a changing climate and to improve estimates of water and energy fluxes in Amazonian degraded forests.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2234043
Journal Information:
Journal of Geophysical Research. Biogeosciences, Journal Name: Journal of Geophysical Research. Biogeosciences Journal Issue: 9 Vol. 128; ISSN 2169-8953
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (62)

Supporting dataset for "Surface energy dynamics and canopy structural properties in intact and disturbed forests in the Southern Amazon" dataset January 2023
The future of evapotranspiration: Global requirements for ecosystem functioning, carbon and climate feedbacks, agricultural management, and water resources: THE FUTURE OF EVAPOTRANSPIRATION journal April 2017
Effects of land‐cover changes on the partitioning of surface energy and water fluxes in Amazonia using high‐resolution satellite imagery journal August 2019
Reframing tropical savannization: linking changes in canopy structure to energy balance alterations that impact climate journal September 2020
Spatial patterns of rainfall regimes related to levels of double cropping agriculture systems in Mato Grosso (Brazil) journal November 2013
Precipitation and air temperature extremes in the Amazon and northeast Brazil
  • Da Silva, Pollyanne Evangelista; Santos e. Silva, Cláudio Moisés; Spyrides, Maria Helena Constantino
  • International Journal of Climatology, Vol. 39, Issue 2 https://doi.org/10.1002/joc.5829
journal August 2018
The Hydrology and Energy Balance of the Amazon Basin book January 2016
Comparative measurements and seasonal variations in energy and carbon exchange over forest and pasture in South West Amazonia journal April 2004
Evapotranspiration of deforested areas in central and southwestern Amazonia journal December 2011
Examination of seasonal water and carbon dynamics in eastern Amazonia: a comparison of Noah-MP and MODIS journal October 2020
A remote sensing surface energy balance algorithm for land (SEBAL). 1. Formulation journal December 1998
Stomatal Control of Transpiration: Scaling Up from Leaf to Region book January 1986
What drives the seasonality of photosynthesis across the Amazon basin? A cross-site analysis of eddy flux tower measurements from the Brasil flux network journal December 2013
Evapotranspiration and gross primary productivity of secondary vegetation in Amazonia inferred by eddy covariance journal November 2020
Combining spectral and spatial information to map canopy damage from selective logging and forest fires journal October 2005
Global estimates of the land–atmosphere water flux based on monthly AVHRR and ISLSCP-II data, validated at 16 FLUXNET sites journal March 2008
Assessment of tropical forest degradation by selective logging and fire using Landsat imagery journal May 2010
Improvements to a MODIS global terrestrial evapotranspiration algorithm journal August 2011
ESA's sentinel missions in support of Earth system science journal May 2012
Use of Landsat thermal imagery in monitoring evapotranspiration and managing water resources journal July 2012
Current status of Landsat program, science, and applications journal May 2019
User needs for future Landsat missions journal September 2019
Aboveground biomass density models for NASA’s Global Ecosystem Dynamics Investigation (GEDI) lidar mission journal March 2022
Forest structure and solar-induced fluorescence across intact and degraded forests in the Amazon journal June 2022
The Global Ecosystem Dynamics Investigation: High-resolution laser ranging of the Earth’s forests and topography journal June 2020
Energy and water dynamics of a central Amazonian rain forest journal January 2002
Energy balance and canopy conductance of a tropical semi-deciduous forest of the southern Amazon Basin: TROPICAL FOREST ENERGY BALANCE journal March 2008
Patterns of water and heat flux across a biome gradient from tropical forest to savanna in Brazil journal January 2009
Origin and fate of atmospheric moisture over continents: ORIGIN AND FATE OF ATMOSPHERIC MOISTURE journal September 2010
Vegetation dynamics contributes to the multi-decadal variability of precipitation in the Amazon region journal October 2011
Impacts of Degradation on Water, Energy, and Carbon Cycling of the Amazon Tropical Forests journal August 2020
Water balance of the Amazon Basin: Dependence on vegetation cover and canopy conductance journal October 1997
The role of deep roots in the hydrological and carbon cycles of Amazonian forests and pastures journal December 1994
The Amazon basin in transition journal January 2012
Observations of increased tropical rainfall preceded by air passage over forests journal September 2012
Self-amplified Amazon forest loss due to vegetation-atmosphere feedbacks journal March 2017
A Recent Systematic Increase in Vapor Pressure Deficit over Tropical South America journal October 2019
Satellite-Based Energy Balance for Mapping Evapotranspiration with Internalized Calibration (METRIC)—Applications journal August 2007
Reduced impact logging minimally alters tropical rainforest carbon and energy exchange journal November 2011
Vegetation dynamics and rainfall sensitivity of the Amazon journal October 2014
Tropical forest recovery: legacies of human impact and natural disturbances journal January 2003
Agricultural expansion dominates climate changes in southeastern Amazonia: the overlooked non-GHG forcing journal October 2015
Water use by terrestrial ecosystems: temporal variability in rainforest and agricultural contributions to evapotranspiration in Mato Grosso, Brazil journal June 2012
GEDI launches a new era of biomass inference from space journal August 2022
Understorey fire frequency and the fate of burned forests in southern Amazonia journal June 2013
DETER-B: The New Amazon Near Real-Time Deforestation Detection System
  • Diniz, Cesar Guerreiro; Souza, Arleson Antonio de Almeida; Santos, Diogo Correa
  • IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol. 8, Issue 7 https://doi.org/10.1109/JSTARS.2015.2437075
journal July 2015
Quantifying surface albedo and other direct biogeophysical climate forcings of forestry activities journal June 2015
Vegetation demographics in Earth System Models: A review of progress and priorities journal October 2017
Canopy structure and topography jointly constrain the microclimate of human-modified tropical landscapes journal September 2018
Prolonged tropical forest degradation due to compounding disturbances: Implications for CO 2 and H 2 O fluxes journal May 2019
The land–atmosphere water flux in the tropics: THE LAND–ATMOSPHERE WATER FLUX IN THE TROPICS journal November 2009
Forests and Climate Change: Forcings, Feedbacks, and the Climate Benefits of Forests journal June 2008
The Effects of Tropical Vegetation on Rainfall journal October 2018
Vegetation–Climate Feedbacks in the Conversion of Tropical Savanna to Grassland journal May 2000
What Controls Evapotranspiration in the Amazon Basin? journal June 2007
High spatial resolution land use and land cover mapping of the Brazilian Legal Amazon in 2008 using Landsat-5/TM and MODIS data journal September 2016
Lidar Remote Sensing for Ecosystem Studies journal January 2002
Evaluation of Landsat-Based METRIC Modeling to Provide High-Spatial Resolution Evapotranspiration Estimates for Amazonian Forests journal January 2017
Assessing impacts of selective logging on water, energy, and carbon budgets and ecosystem dynamics in Amazon forests using the Functionally Assembled Terrestrial Ecosystem Simulator journal January 2020
Evapotranspiration seasonality across the Amazon Basin journal January 2017
Canopy-scale biophysical controls of transpiration and evaporation in the Amazon Basin journal January 2016
The influence of water table depth on evapotranspiration in the Amazon arc of deforestation journal September 2019

Similar Records

Seasonality of trace gas emissions from soils in the eastern Amazon
Journal Article · Fri Sep 01 00:00:00 EDT 1995 · Bulletin of the Ecological Society of America · OSTI ID:107148

Impacts of Degradation on Water, Energy, and Carbon Cycling of the Amazon Tropical Forests
Journal Article · Mon Jun 29 20:00:00 EDT 2020 · Journal of Geophysical Research. Biogeosciences · OSTI ID:1816839

Related Subjects