The ORNL DAAC and the LBA DIS announce the release of three data sets associated with the LBA-ECO component of the Large Scale Biosphere- Atmosphere Experiment in Amazonia (LBA).
- LBA-ECO CD-04 Logging Damage, km 83 Tower Site, Tapajos National Forest, Brazil. Data set prepared by C.A.D. de Sousa, J.R. Elliot, E.L. Read, and A.M. Figueira. This data set reports the results of a survey of logging damage in an 18-ha plot east of the eddy flux tower at the km 83 logged tower site in Tapajos National Forest, Para, Brazil. Data were collected from November, 2000 through March, 2002, and include type of damage, snap height, and log dimensions, as well as calculated biomass of stems and canopy either damaged or removed during logging.
- LBA-ECO CD-04 Soil Respiration, km 83 Tower site, Tapajos National Forest, Brazil. Data set prepared by M.L. Goulden, H.R. da Rocha, S. Miller, and H.C. de Freitas. This data set reports on the flux of carbon dioxide from selectively-logged forest soils near the eddy flux tower at the km 83 site, Tapajos National Forest, Para, Brazil. Automated soil respiration measurements were collected using 15 chambers between December 19, 2001 and March 1, 2002.
- LBA-ECO LC-05 Biomass and Soil Properties of Fragmented Forests, Amazonas, Brazil. Data set prepared by H.E.M. Nascimento and W.F. Laurance. This data set reports plot-level summaries for total aboveground dry biomass based on plant samples, soil samples, and measurements obtained over the 1997 to 2001 timeframe, as well as soil chemical and physical characteristics. The plots were within the Biological Dynamics of Forest Fragments Project (BDFFP) study area, an experimentally fragmented landscape spanning 1,000 km2 located 70–90 km north of Manaus, Amazonas, Brazil.
LBA is an international research initiative under the leadership of Brazil. The project focuses on the climatological, ecological, biogeochemical, and hydrological functions of Amazonia; the impact of land use change on these functions; and the interactions between Amazonia and the Earth system. The LBA-ECO component, which is funded by NASA, focuses on the question: "How do tropical forest conversion, regrowth, and selective logging influence carbon storage, nutrient dynamics, trace gas fluxes, and the prospect for sustainable land use in Amazonia?"
See the LBA Project page for further information about the study and to access associated data and documentation maintained by the ORNL DAAC.
The ORNL DAAC is a NASA-funded data center archiving and distributing terrestrial ecology and biogeochemical dynamics data. The LBA Data and Information System (LBA-DIS) has been developed by INPE with NASA's participation.