LBA-ECO TG-07 Soil CO2 Flux by Automated Chamber, Para, Brazil: 2001-2003

Description

The net ecosystem exchange of carbon dioxide was measured by eddy covariance methods for 3 years in two old-growth forest sites near Santarem, Brazil. Carbon was lost in the wet season and gained in the dry season, which was opposite to the seasonal cycles of both tree growth and model predictions. The 3-year average carbon loss was 1.3 (confidence interval: 0.0 to 2.0) megagrams of carbon per hectare per year. Biometric observations confirmed the net loss but imply that it is a transient effect of recent disturbance superimposed on long-term balance. Given that episodic disturbances are characteristic of old-growth forests, it is likely that carbon sequestration is lower than has been inferred from recent eddy covariance studies at undisturbed sites.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DTG07_Autochamber_Soil_CO2_Flux_Km67_927%26ac%3Dtrue
5 https://daac.ornl.gov%2FLBA%2Fguides%2FTG07_Autochamber_Soil_CO2_Flux_Km67.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F927
5 https://daac.ornl.gov%2Fgraphics%2Fbrowse%2Fproject%2Fsquare%2Flba_logo_square.png
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Flba%2Ftrace_gases%2FTG07_Autochamber_Soil_CO2_Flux_Km67%2Fcomp%2FTG07_Autochamber_Soil_CO2_Flux_Km67.pdf
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FTG07_Autochamber_Soil_CO2_Flux_Km67_927.zip
5 https://search.earthdata.nasa.gov/search?q=TG07_Autochamber_Soil_CO2_Flux_Km67_927&ac=true
21 https://doi.org/10.3334/ORNLDAAC/927
57 TG07_Autochamber_Soil_CO2_Flux_Km67_927.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/TG07_Autochamber_Soil_CO2_Flux_Km67_927.zip
34 lba_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/lba_logo_square.png
33 TG07_Autochamber_Soil_CO2_Flux_Km67.pdf https://data.ornldaac.earthdata.nasa.gov/public/lba/trace_gases/TG07_Autochamber_Soil_CO2_Flux_Km67/comp/TG07_Autochamber_Soil_CO2_Flux_Km67.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2784834917-ORNL_CLOUD.iso19115

Tags

  • earth-science-soils-land-surface-carbon
  • earth-science-atmospheric-temperature-atmosphere-surface-temperature-air-temperature
  • earth-science-soils-land-surface-soil-respiration

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