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Investigation:

CD-04 (Goulden / Rocha)

LBA Dataset ID:

LBA-CD04_BIOMASS_KM83

Originator(s):

1. MENTON, M.C.
2. FIGUEIRA, A.M.S.
3. DE SOUSA, C.A.D.
      4. MILLER, S.D.
5. DA ROCHA, H.R.
6. GOULDEN, M.L.

Point(s) of Contact:

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Dataset Abstract:

This data set contains the results of a biometric tree survey of a 19.25 ha area adjacent to the eddy flux tower at the km 83 logged forest tower site in Tapajos National Forest, Para, Brazil. The survey was done in March 2000. All measurements reported here were taken before the logging began. Diameters of all trees > 35 cm DBH within the 19.25 ha survey area were recorded and trees with DBH between 10 and 35 cm DBH were recorded along three transects with a total area of 2.3 ha (Miller et al., 2004). These data were used to calculate net ecosystem productivity (NEP) and the role of this forest as a carbon source or sink. Biometric data are reported in one comma-delimited ASCII file.

Beginning Date:

2000-03-01

Ending Date:

2009-03-28

Metadata Last Updated on:

2011-01-21

Data Status:

Archived

Access Constraints:

PUBLIC

Data Center URL:

http://daac.ornl.gov/

Distribution Contact(s):

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Access Instructions:

PUBLIC

Data Access:

IMPORTANT: The LBA-ECO Project website is no longer being supported. Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC. Please follow the fair use guidelines found in the dataset documentation when using or citing LBA data.
Datafile(s):

LBA-ECO CD-04 Biomass Survey, km 83 Tower Site, Tapajos National Forest, Brazil:  http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=990

Documentation/Other Supporting Documents:

LBA-ECO CD-04 Biomass Survey, km 83 Tower Site, Tapajos National Forest, Brazil:  http://daac.ornl.gov/LBA/guides/CD04_Biomass_km83.html

Citation Information - Other Details:

Menton, M.C, A.M.S. Figueira, C.A.D. de Sousa, S.D. Miller, H.R. da Rocha, and M.L. Goulden. 2011. LBA-ECO CD-04 Biomass Survey, km 83 Tower Site, Tapajos National Forest, Brazil. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/990

Keywords - Theme:

Parameter Topic Term Source Sensor
BIOMASS BIOSPHERE VEGETATION FIELD INVESTIGATION STEEL MEASURING TAPE

Uncontrolled Theme Keyword(s):  BIOMASS SURVEY, LOGGED SITE, TAPAJOS FOREST

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
Pará Western (Santarém) km 83 Logged Forest Tower Site -3.01700 -3.01700 -54.97070 -54.97070

Related Publication(s):

Figueira, A.M.E.S., S.D. Miller, C.A.D. de Sousa, M.C. Menton, A.R. Maia, H.R. da Rocha, and M.L. Goulden. 2008. Effects of selective logging on tropical forest tree growth. Journal of Geophysical Research-Biogeosciences 113:

Goulden, M.L., S.D. Miller, H.R. da Rocha, M.C. Menton, H.C. de Freitas, A.M.E.S. Figueira, and C.A.D. de Sousa. 2004. Diel and seasonal patterns of tropical forest CO2 exchange Ecological Applications 14(4) Supplement: S42-S54

Miller, S.D., M.L. Goulden, M.C. Menton, H.R. da Rocha, H.C. Freitas, A.M.S Figueira, C.A.D. Sousa. 2004. Biometric and micrometeorological measurements of tropical forest carbon balance. Ecological Applications 14(4) Supplement: S114 -S126.

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:

Data are presented in one comma separated ASCII file: CD04_TNF_KM83_Tree_Survey_2000.csv

Column Heading Units/format Description

1 COMMON NAME tree common name

2 SCIENTIFIC NAME tree scientific name

3 FAMILY tree family

4 BLOCK location within the 18-ha grid where damaged tree was located

5 TAG # LBA tag number installed 2000

6 DBH cm diameter at breast height (DBH)



Missing data are represented by -999



Example data records



COMMON NAME, SCIENTIFIC NAME, FAMILY, BLOCK, TAG #,DBH

Acariquara, Minquartia guianensis Aubl., Olacaceae, A0,1, 52.4

Macaranduba, Manilkara huberi (Ducke) Chev., Sapotaceae,A0,2,78

Acariquarana, Rinoria guianensis Aubl., Violaceae, A0,3,41.7

...

Embaubarana, Pouruma guianensis Aubl., Cecropiaceae, L6,255,38.4

Paraputaca, Swartzia guianensis, Papilionoideae, K6,256,39.8

Andirobarana, Guarea subsessiliflora C. DC., Meliaceae,K6,257,36.5

Data Application and Derivation:

Biomass inventories can be used to directly estimate carbon stocks and assess net carbon balance during a several year interval.

Quality Assessment (Data Quality Attribute Accuracy Report):

Quality Assessment:

The data have been carefully reviewed and there are no known problems with them at this time.



Estimates of total and commercial heights are considered accurate to within 1 meter. Measurements of diameter have an associated error of plus or minus 0.2 cm while the estimated diameter values have an associated error of plus or minus 1 cm.

Process Description:

Data Acquisition Materials and Methods:

This work was done at the Tapajos National Forest (TNF), a 6,000,000 ha conservation area of of humid tropical forest with a mean canopy height of 40 m. The study site is located 50 km south of Santarem, Para via an access road at km 83 of the Santarem-Cuiaba Highway. Mean annual precipitation of 1,911 mm has been recorded at a weather station in Belterra, Para 50 km from the study sites (INEMET 1992), with a dry season extending from August through November.



In March 2000 a 19.25 ha plot (300 m N-S by 600 m E-W) directly east of the tower was surveyed. A grid of transects 25 meters apart were established and for all trees with a diameter at breast height > 35 centimeters, diameter, commercial and total height, location within the plot, species common name and condition (live, dead, damaged etc.) were recorded. Where buttressing or heavy vine growth prevented an accurate measurement of diameter at 1.3 meters above the soil surface, diameter was either estimated (for deformed or vine laden trees) or measured above the buttress with the aid of a ladder. Total tree height and commercial height (height to the first bifurcation) were estimated to the nearest meter by experienced technicians. Along three East-West transects ( B, G and L), trees between 10 and 35 cm diameter within 5 meters of the transect were sampled. Height, diameter, location and species identification were measured as for the larger trees and recorded.

References:

Miller, S.D., M.L. Goulden, M.C. Menton, H.R. da Rocha, H.C. Freitas, A.M.S Figueira, C.A.D. Sousa. 2004. Biometric and micrometeorological measurements of tropical forest carbon balance. Ecological Applications 14(4) Supplement: S114 -S126.doi:10.1890/02-6005

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