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LBA-ECO CD-05 Forest Understory Fuel Loads, Paragominas, Para, Brazil: 2001
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Revision date: July 22, 2014

Summary:

This data set contains estimates of understory fuel loads (forest litter) at six locations near Paragominas in Northeastern Amazonia. Samples were collected from three different forest conditions: primary forest, logged forest, and burned forest. Volumes and weights are provided by size and condition class based on the planar transect method of estimating understory fuel loads (Brown 1971). Means and standard errors are reported from 3 transects in each forest x condition class.

There is one comma-delimited data file (.csv) with this data set.

DATA QUALITY STATEMENT: The Data Center has determined that there are questions about the quality of the data reported in this data set. The data set has missing or incomplete data, metadata, or other documentation that diminishes the usability of the products. 

Data Citation:

Cite this data set as follows:

Lefebvre, P.A., D.C. Nepstad, and P.R. Moutinho. 2014. LBA-ECO CD-05 Forest Understory Fuel Loads, Paragominas, Para, Brazil: 2001. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1233

Implementation of the LBA Data and Publication Policy by Data Users:

The LBA Data and Publication Policy [http://daac.ornl.gov/LBA/lba_data_policy.html] is in effect for a period of five (5) years from the date of archiving and should be followed by data users who have obtained LBA data sets from the ORNL DAAC. Users who download LBA data in the five years after data have been archived must contact the investigators who collected the data, per provisions 6 and 7 in the Policy.

This data set was archived in July 2014. Users who download the data between July 2014 and July 2019 must comply with the LBA Data and Publication Policy.

Data users should use the Investigator contact information in this document to communicate with the data provider.

Data users should use the Data Set Citation and other applicable references provided in this document to acknowledge use of the data.

Table of Contents:

1. Data Set Overview:

Project: LBA (Large-Scale Biosphere-Atmosphere Experiment in the Amazon)

Activity: LBA-ECO

LBA Science Component: WHRC Tropical Forest Ecology Data for Amazonia and the Cerrado

LBA Science Component: Carbon Dynamics

Team ID: CD-05 (Nepstad / Miranda)

The investigators were Nepstad, Daniel Curtis; Miranda, Heloisa S.; Andrade, Sergio Viana de ; Arce, Javier Alberto; Asner, Gregory Paul; Bamberger, Barbara; Belk, Elizabeth Leslie; Bishop, Joshua Thomas; Breyer, Lace Medeiros; Cardinot, Gina Knust; Carvalho, Oswaldo de; Chermont, Larissa Steiner; Dias-Filho, Moacyr Bernardino; Diaz, Maria del Carmen Vera; Figueiredo, Ricardo de Oliveira; Guerrero, Jose Benito; Holbrook, Noel Michele; Kingerlee, Wendy; Klink, Carlos Augusto; Lefebvre, Paul A.; Maklouf, Eduardo Jorge; Markewitz, Daniel; Merry, Frank David; Miranda, Antonio C.; Monacao, Luciana; Morton, Douglas Christopher; Moutinho, Paulo Roberto de Souza; Oliveira, Rafael Silva; Peters, Charles Merideth; Pinto, Flavia dos Santos ; Quesada, Carlos Alberto Nobre; Ray, David Graham; Rivero, Sergio; Santos, Alexandre J. B. ; Schwalbe, Karen R.; da Silva, Dulce Alves; Solorzano Cardenas, Luis Anibal and da Silva, Wanderley Rocha . You may contact Nepstad, Daniel C. (dnepstad@whrc.org) ; Moutinho, Paulo Roberto de Souza (moutinho@amazon.com.br) ; Lefebvre, Paul A. (paul@whrc.org) and Kingerlee, Wendy (wkingerlee@whrc.org)

LBA Data Set Inventory ID: CD05_Forest_Fuel_Loads

This data set contains estimates of understory fuel loads (forest litter) at six locations near Paragominas in Northeastern Amazonia. Samples were collected from three different forest conditions: primary forest, logged forest, and burned forest. Volumes and weights are provided by size and condition class based on the planar transect method of estimating understory fuel loads (Brown 1971). Means and standard errors are reported from 3 transects in each forest x condition class.

2. Data Characteristics:

Data are provided in a single comma-delimited file: CD05_Fuel_Loads.csv

Data quality issues: There are no specific coordinates or dates for the sampling locations and the data units and descriptions could not be verified.


Table 1. Data file description

Column Column Heading Units/format Description
1 Location   Study location: Bosque, Jussara, Pimental, Pitangueiras, Sgertrudis, Vitoria
2 Cover_type   Forest cover type: Logged forest, Burned forest, or Primary forest
3 Size_class cm Size and condition class based on the planar transect method of estimating understory fuel loads (Brown 1971), reported in centimeters (cm)
4 Fuel_load_vol m3/ha-1 Fuel load volume: mean obtained from 3 transects in each forest cover type x size & condition class, reported in m3/ha-1
5 Vol_stderr   Standard error of mean fuel load volume
6 Fuel_load_wt tons/ha-1 Fuel load weight: mean obtained from 3 transects in each forest cover type x size & condition class, reported in tons/ha-1
7 Wt_stderr   Standard error of mean fuel load weight

Example Data Records:

Location,Cover_type,Size_class,Fuel_load_vol,Vol_stderr,Fuel_load_wt,Wt_stderr
Bosque,Logged forest,0-0.6cm,0.701,0.043,0.484,0.03
Bosque,Logged forest,0.6-2.5cm,0.79,0.167,0.545,0.115
Bosque,Logged forest,2.5-7.6cm,8.39,1.102,5.789,0.76
...
Jussara,Burned forest,>7.6cm rotten,11.97,3.009,6.195,1.557
Pimental,Logged forest,0-0.6cm,0.809,0.085,0.558,0.058
Pimental,Logged forest,0.6-2.5cm,2.931,0.575,2.022,0.397
...
Vitoria,Primary forest,2.5-7.6cm,9.858,1.616,6.802,1.115
Vitoria,Primary forest,>7.6cm solid,21.018,9.798,14.503,6.761
Vitoria,Primary forest,>7.6cm rotten,23.758,8.326,12.295,4.308

Site boundaries: (All latitude and longitude given in decimal degrees)

Site (Region) Westernmost Longitude Easternmost Longitude Northernmost Latitude Southernmost Latitude
Para eastern (Belem) -47.5160 -47.5160 -2.9830 -2.9830

Time period:

Platform/Sensor/Parameters measured include:

3. Data Application and Derivation:

These data cuold be used to calculate forest flammability to fire or to estimate fire intensity.

4. Quality Assessment:

Data quality issues: There are no specific coordinates or dates for the sampling locations and the data units and descriptions could not be verified.

5. Data Acquisition Materials and Methods:

Site description:

The fuel load samples were collected from six locations in the Paragominas region of northeast Para state, in the eastern Brazilian Amazonia. The soils are clay-rich, the mean annual precipitation is 1,800 mm, and is highly seasonal.

Sample collections:

The samples were collected from different forest conditions: primary forest, logged forest, and burned forest using techniques described in Brown et al., (1982). The procedure furnishes estimates for live and dead vegetation by diameter class. Volumes and weights are provided by size and condition class based on the planar transect method of estimating understory fuel loads (Brown 1971).

6. Data Access:

These data are available through the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

Data Archive Center:

Contact for Data Center Access Information:

E-mail: uso@daac.ornl.gov
Telephone: +1 (865) 241-3952

7. References:

Brown J.K., R.D. Oberheu, and C.M. Johnston. 1982. Handbook for inventorying surface fuels and biomass in the Interior West, General Technical Report INT-129. USDA Forest Service Ogden, 48 pp.

Brown, J. (1971). A Planar intersect method for sampling fuel volume and surface area. Forest Science, 17(1): 96-102.

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