LBA-ECO ND-11 Organic Carbon Watershed Exports, Mato Grosso, Brazil: 2003-2004

Description

Resolving the carbon (C) balance in the Amazonian forest depends on an improved quantification of production and losses of particulate C from forested landscapes via stream export. The main goal of this work was to quantify litterfall, the lateral movement of litter, and the export of coarse organic particulate matter (>2 mm) in four small watersheds (1-2 ha) under native forest in southern Amazonia near Juruena, Mato Grosso, Brazil (10°25 S, 58°46 W). Mean litterfall production was 11.8 Mg ha-1 y-1 (5.7 Mg C ha-1 y-1). Litterfall showed strong seasonality, with the highest deposition in the driest months of the year. About two times more C per month was deposited on the forest floor during the 6-mo dry season (0.65 Mg C ha-1 mo-1) compared to the rainy season (0.3 Mg C ha-1 mo-1). The measured C concentration of the litterfall samples was greater in the dry season than in the rainy season (49% vs. 46%, P < 0.05). The lateral movement of litter increased from the plateau (upper landscape position) towards the riparian zone. However, the trend in C concentration of laterally transported litter samples was the opposite, being highest on the plateau (44%) and lowest in the riparian zone (42%) (P < 0.05). Stream-water exports of particulate C were positively correlated with streamflow, increasing in the rainiest months. The export of particulate C in streamflow was found to be very small (less than 1%) in relation to the amount of litterfall produced.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DND11_Carbon_Export_CPOM_913%26ac%3Dtrue
5 https://daac.ornl.gov%2FLBA%2Fguides%2FND11_Carbon_Export_CPOM.html
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FND11_Carbon_Export_CPOM_913.zip
5 https://daac.ornl.gov%2Fgraphics%2Fbrowse%2Fproject%2Fsquare%2Flba_logo_square.png
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Flba%2Fnutrient_dynamics%2FND11_Carbon_Export_CPOM%2Fcomp%2FND11_Carbon_Export_CPOM.pdf
5 https://doi.org%2F10.3334%2FORNLDAAC%2F913
5 https://search.earthdata.nasa.gov/search?q=ND11_Carbon_Export_CPOM_913&ac=true
21 https://doi.org/10.3334/ORNLDAAC/913
57 ND11_Carbon_Export_CPOM_913.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/ND11_Carbon_Export_CPOM_913.zip
34 lba_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/lba_logo_square.png
33 ND11_Carbon_Export_CPOM.pdf https://data.ornldaac.earthdata.nasa.gov/public/lba/nutrient_dynamics/ND11_Carbon_Export_CPOM/comp/ND11_Carbon_Export_CPOM.pdf
5 https://search.earthdata.nasa.gov/search?q=ND11_Carbon_Export_CPOM_913&ac=true
21 https://doi.org/10.3334/ORNLDAAC/913
57 ND11_Carbon_Export_CPOM_913.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/ND11_Carbon_Export_CPOM_913.zip
33 ND11_Carbon_Export_CPOM.pdf https://data.ornldaac.earthdata.nasa.gov/public/lba/nutrient_dynamics/ND11_Carbon_Export_CPOM/comp/ND11_Carbon_Export_CPOM.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2777410780-ORNL_CLOUD.iso19115

Tags

  • earth-science-water-quality-water-chemistry-terrestrial-hydrosphere-water-characteristics-organ

Topics

Categories