Science Keywords>TERRESTRIAL HYDROSPHERE
LBA-ECO ND-30 WATER CHEMISTRY, RAINFALL EXCLUSION, KM 67, TAPAJOS NATIONAL FORESTEntry ID: ND30_REE_WATER_CHEMISTRY
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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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/1131Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=1131&term2attribu...
Start Date: 1999-05-17Stop Date: 2006-05-10
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > ALKALINITY
LAND SURFACE > SOILS > CALCIUM
LAND SURFACE > SOILS > MAGNESIUM
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NITROGEN COMPOUNDS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > PH
LAND SURFACE > SOILS > PHOSPHORUS
LAND SURFACE > SOILS > POTASSIUM
ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT
ATMOSPHERE > PRECIPITATION > RAIN
LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
Data Set Progress
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2012-10-30
Last DIF Revision Date: 2012-11-26