LBA-ECO ND-30 WATER CHEMISTRY, RAINFALL EXCLUSION, KM 67, TAPAJOS NATIONAL FOREST
Entry ID: ND30_REE_WATER_CHEMISTRY

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Summary
Abstract: This data set reports the results of chemical analyses of rainfall, throughfall, litter leachate, and soil water samples collected before, during, and after a rainfall exclusion experiment conducted at the km 67 Seca Floresta site, Tapajos National Forest, Brazil. Samples were collected every two weeks from May 17, 1999 through May 10, 2006. Measurements included alkalinity, conductivity, pH, and selected anions and cations analyzed by ion chromatography. The exclusion treatment, began in late January 2000 and continued through December 2004, involved diverting about 60% of throughfall (equivalent to approximately half the rainfall) from a 1-hectare plot using plastic panels installed in the understory. The comparable 1-hectare control plot was unaltered. The purpose was to observe the potential effects of severe water stress on a humid Amazonian forest (Nepstad et al., 2002 and Nepstad et al., 2007). There are five comma-delimited data files with this data set.

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Description: LBA-ECO ND-30 WATER CHEMISTRY, RAINFALL EXCLUSION, KM 67, TAPAJOS NATIONAL FOREST


Geographic Coverage
 N: -2.75 S: -2.75  E: -55.0  W: -55.0

Data Set Citation
Dataset Originator/Creator: BARROS, L.BELK, E.L.CARVALHO, E.J.M.CHAMBERS, J.Q.DAVIDSON, E.A.GUERRERO, J.B.ISHIDA, F.Y.KALIF, K.LEFEBVRE, P.A.MARKEWITZ, D.MOREIRA, M.NEPSTAD, D.C.RAY, D.SCHWALBE, K.STERNBERG, L.TOHLVER, I.
Dataset Title: LBA-ECO ND-30 WATER CHEMISTRY, RAINFALL EXCLUSION, KM 67, TAPAJOS NATIONAL FOREST
Dataset Release Date: 2012
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/1131
Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=1131&term2attribu...


Temporal Coverage
Start Date: 1999-05-17
Stop Date: 2006-05-10


Location Keywords
CONTINENT > SOUTH AMERICA > AMAZONIA


Science Keywords
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >ALKALINITY    [Definition]
LAND SURFACE >SOILS >CALCIUM    [Definition]
LAND SURFACE >SOILS >MAGNESIUM    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >NITROGEN COMPOUNDS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >PH    [Definition]
LAND SURFACE >SOILS >PHOSPHORUS    [Definition]
LAND SURFACE >SOILS >POTASSIUM    [Definition]
ATMOSPHERE >PRECIPITATION >PRECIPITATION AMOUNT    [Definition]
ATMOSPHERE >PRECIPITATION >RAIN    [Definition]
LAND SURFACE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
LABORATORY    [Information]
FIELD INVESTIGATION    [Information]


Instrument
ION CHROMATOGRAPHS    [Information]
LYSIMETERS    [Information]


Project
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]
LBA-ECO >NASA's Component of the Large-scale Biosphere-Atmosphere Experiment in Amazonia    [Information]


Keywords
DROUGHT
RAINWATER
THROUGHFALL
SOIL MOISTURE
FOREST LITTER
WATER CHEMISTRY
TROPICAL FORESTS


Data Set Progress
COMPLETE


Data Center
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC)    [Information]
Data Center URL: http://daac.ornl.gov/
Dataset ID: 1131

Data Center Personnel
Name: ORNL DAAC USER SERVICES OFFICE
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA


Personnel
L. BARROS
Role: TECHNICAL CONTACT


ORNL DAAC USER SERVICES OFFICE
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA



Creation and Review Dates
DIF Creation Date: 2012-10-30
Last DIF Revision Date: 2012-11-26

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