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Investigation:

CD-08 (Trumbore / Camargo)

LBA Dataset ID:

CD08_Leaf_Isotopes_Manaus

Originator(s):

1. Trumbore, Susan E.
2. Camargo, Plinio Barbosa de
3. Chambers, Jeffrey Q.
4. Felsemburgh, Cristina Aledi
5. Higuchi, Niro
6. Ishida, Francoise Yoko
7. Lara, Luciene L.S.
8. Martinelli, Luiz Antonio
9. Melo, Antonio Willian Flores de
10. Miranda, Erika
11. Moreira, Marcelo Zacharias
12. Perez, Tibisay Josefina Acosta
      13. Pinto, Alberto C.M.
14. Rocha, Rosana
15. Santos, Guaciara dos
16. Santos, Joaquim dos
17. Selhorst, Diogo
18. Silva, Roseana P. da
19. Silveira, Vanessa P.
20. Suemitzu, Chieno
21. Teixeira, Liliane Martins
22. Telles, Everaldo de Carvalho Conceicao
23. Tribuzy, Edgard Siza
24. Vieira, Simone Aparecida

Point(s) of Contact:

Camargo, Plinio Barbosa de (pcamargo@cena.usp.br)
Trumbore, Susan E. (setrumbo@uci.edu)

Dataset Abstract:

Carbon isotopes and C and N content of leaves sampled in Manaus ZF2 Jacaranda transect area by Enir Salazar da Costa in 2001. Leaves were dried and stored until analysis at CENA. We analyzed C and N content, 13C and 14C of the leaf tip and the petiole for the youngest and oldest leaves in a bunch for 9 different species.
Data Quality Statement: The Data Center has determined that this data set has missing or incomplete data, metadata, or other documentation resulting in diminished usability of this product. User beware.

Beginning Date:

2001-08-25

Ending Date:

2001-09-10

Metadata Last Updated on:

2011-12-27

Data Status:

Not yet in archive queue

Access Constraints:

Public

Data Center URL:

http://daac.ornl.gov

Distribution Contact(s):

ORNL DAAC User Services (uso@daac.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):

Access data via ORNL DAAC:  http://daac.ornl.gov//LBA/guides/CD08_Leaf_Isotopes_Manaus.html

Citation Information - Other Details:

Trumbore, Susan E. 2010. LBA-ECO CD-08 Leaf Carbon Isotopes Data for Manaus ZF2, Brazil: 2001. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.

Keywords - Theme:

Parameter Topic Term Source Sensor
ISOTOPES BIOSPHERE ECOLOGICAL DYNAMICS LABORATORY AMS (ACCELERATOR MASS SPECTROMETER)

Uncontrolled Theme Keyword(s):  13C, 14C , carbon, carbon isotopes, leaf, leaf dynamics, nitrogen, radiocarbon

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
Amazonas (Manaus) ZF2 km 34 -2.50000 -2.60900 -60.00000 -60.20910

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:

Data are provided as a comma-delimited ASCII file: Leaf_isotopes_Manaus.csv



File Contents and Organization:



Filename: Leaf_isotopes_Manaus.csv



Column Column heading Variable description

1 Site Study site. All samples were taken at the Manaus ZF2 site (Manaus_ZF2_transect).

2 Date_sampled Date of sampling. All samples were collected on August 8, 2001.

3 Common_name Local name in Portugese

4 Genus Genus of plant sampled

5 Family Scientific family of plant sampled

6 Relative_age_leaf Relative age of leaves based on position on the twig: Young leaves were taken from the tip and Old leaves from the position farthest away from the tip

7 Subsample Sample type: both leaf tip (Tip) and petiole (Stem) were sampled

8 Mean_leaf_area Leaf area was measured by making xerox copies of the leaves cutting them out weighing the cut-outs and converting weight of the paper to area in cm^2

9 Std_dev_leaf_area Standard deviation of the leaf area measurements in cm^2

10 Sample_count Number of individual leaves used in calculating average and standard deviation for leaf area

11 N_concentration Leaf nitrogen concentration (%) measured by dry combustion using a Fisons elemental analyzer according to standard methods

12 C_concentration Leaf carbon concentration (%) measured by dry combustion using a Fisons elemental analyzer according to standard methods

13 CN_ratio Mass based ratio of carbon to nitrogen concentrations

14 Delta_13C delta (lowercase greek delta) 13C data are reported as [[13C/12C ratio of the sample divided by the 13C/12C of the PeeDee Belemnite standard] -1]*1000

15 Delta_14C Measured using accelerator mass spectrometry with an overall accuracy of +/- 5 per mil. Delta (capital greek Delta) 14C data are reported as [[14C/12C ratio of the sample divided by 0.95 times the 14C/12C of the Oxalic Acid I

Missing data are represented as -9999.



Missing data are represented by -9999,,,,,,,,,,,,,





Example data records:



Site,Date_sampled,Common_name,Genus,Family,Relative_age_leaf,Subsample,Mean_leaf_area,Std_dev_leaf_area,Sample_count,N_concentration,C_concentration,CN_ratio,Delta_13C,Delta_14C

Manaus_ZF2_transect,2001/08/25,Breu_manga,Protium,Burseraceae,Young,Tip,-9999,-9999,-9999,2.39,49.57,21,-35.07,77.1

Manaus_ZF2_transect,2001/08/25,Breu_manga,Protium,Burseraceae,Young,Stem,-9999,-9999,-9999,1.1,46.91,43,-35.03,80.6

Manaus_ZF2_transect,2001/08/25,Breu_manga,Protium,Burseraceae,Old,Tip,-9999,-9999,-9999,2.01,45.23,23,-36.26,80.8

Manaus_ZF2_transect,2001/08/25,Breu_manga,Protium,Burseraceae,Old,Stem,-9999,-9999,-9999,0.89,45.62,51,-35.51,81.2

Manaus_ZF2_transect,2001/08/25,Breu_vermelho,Protium,Burseraceae,Young,Tip,40,18,8,1.37,46.774,34,-33.02,95.1

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