NOTICE -- The LBA-ECO Project website is no longer being supported.  This archive is a snapshot, as it existed in 2013, of the LBA-ECO website, maintained by NASA Goddard Space Flight Center, and now archived at the ORNL DAAC.  Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC.
banner
banner banner banner banner banner banner
banner banner banner banner banner banner banner
home aboutlibrarynews archivecontacts banner

spacer
banner
Investigations
Overview
Abstracts & Profiles
Publications
Research Sites
Meetings
Synthesis Groups
LBA-HYDROMET
LBA-Air-ECO
Logistics
Overview
Field Support
Travel
Visa
Shipping
Data
  Overview
Find LBA Data
Investigator Checklist
Process & Policy
Documentation & Archive
Training & Education
  Overview
Activities Summary
T&E Goals
Student Opportunities
  Folha Amazônica
 
spacer

Investigation:

CD-04 (Goulden / Rocha)

LBA Dataset ID:

CD04_LOGGING_DAMAGE

Originator(s):

1. DE SOUSA, C.A.D.
2. ELLIOT, J.R.
3. READ, E.L.
      4. FIGUEIRA, A.M.S.
5. MILLER, S.D.
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 survey of logging damage in a 18-ha plot (300 m N-S, 600 m E-W) east (upwind) of the eddy flux tower at km 83, Tapajos National Forest, Para, Brazil. Data collected include type of damage, snap height, and log dimensions, as well as calculated biomass of stems and canopy either damaged or removed in logging. There are two comma-delimited data files with this data set.

Beginning Date:

2000-11-01

Ending Date:

2002-03-31

Metadata Last Updated on:

2011-09-23

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 Logging Damage, km 83 Tower Site, Tapajos National Forest, Brazil:  http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1038

Documentation/Other Supporting Documents:

LBA-ECO CD-04 Logging Damage, km 83 Tower Site, Tapajos National Forest, Brazil:  http://daac.ornl.gov/LBA/guides/CD04_Logging_Damage.html

Citation Information - Other Details:

de Sousa, C.A.D., J.R. Elliot, E.L. Read, A.M. Figueira, S.D. Miller, and M.L. Goulden. 2011. LBA-ECO CD-04 Logging Damage, 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/1038

Keywords - Theme:

Parameter Topic Term Source Sensor
BIOMASS BIOSPHERE VEGETATION FIELD SURVEY HUMAN OBSERVER
LAND RESOURCE DEPLETION BIOSPHERE LAND USE/LAND COVER FIELD SURVEY HUMAN OBSERVER
LOGGING DAMAGE BIOSPHERE VEGETATION FIELD SURVEY HUMAN OBSERVER

Uncontrolled Theme Keyword(s):  DENDROMETERS, LITTER DECOMPOSITION, LOGGED SITE, LOGGING DAMAGE SURVEY, SLASH, 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. G00B05

Miller, S.D., M.L. Goulden, and H.R. da Rocha. 2007. The effect of canopy gaps on subcanopy ventilation and scalar fluxes in a tropical forest. Agricultural and Forest Meteorology 142(1):25-34.

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:

Data are presented in two comma-delimited ASCII files:

File #1: CD04_KM83_Damaged_Tree_Statistics.csv



Column Heading Units/Format Description

1 Gap_no ROW-NUM Location within the 18-ha grid where damaged tree was located. See accompanying documentation for map

2 Tree_id LBA tag number installed 2000

3 Damage_code Tree damage key:BS = bole snapped;CL= crown loss; DN= entire tree down; SL=severe lean; ST=standing

4 Live_dead L= live and D= dead

5 DBH cm Diameter at breast height (DBH) measured in centimeters (cm). There are 6 trees with no recorded DBH which were given a value of 18.17 cm, which represents mean DBH. These 6 trees with Gap_no/Tree_id include: A-18/736, B-9/1216, C-18/-999, C-18/237, D-10/464, and D-4/-999

6 Snap_ht m Height of bole snap measured in meters (m). One tree, Gap_no/Tree_id = A-11/-999, with no recorded snap height, was given a value of 3.12 m which represents the mean for the data set

7 Crown_damaged Fraction of tree crown lost

8 Biomass_total_Manaus kg Total tree biomass dry weight calculated using the allometric equations in Chambers et al. (2001), reported in kilograms (kg)

9 Biomass_crown kg Tree crown biomass dry weight calculated using the equations in Chambers et al. (2001), reported in kilograms (kg)

10 Biomass_bole kg Tree bole biomass dry weight calculated using the equations in Chambers et al. (2001), reported in kilograms (kg)

11 Biomass_total_TMF kg Total tree biomass dry weight calculated using the tropical moist forest equations from XXX reported in kilograms (kg)

12 Bole_ht m Estimated total bole height calculated using the equations in Chambers et al. (2001), reported in meters (m)

13 Bole_snap_fraction fraction Fraction of bole snapped calculated as 1 - (Snap_ht divided by Bole_ht). Bole_snap_fraction was set to 1 for trees where Snap_ht (estimated in the field) was greater than Bole_ht (calculated from allometric equations)

14 Bole_snap_mass kg Mass of bole snapped calculated by multiplying Biomass_bole by Bole_snap_fraction

15 Leaf_area_total m2 Total tree leaf area calculated using the equations in Chambers et al. (2004), reported in meters squared (m2)

16 Leaf_area_lost m2 Amount of leaf area leaf area lost to damage calculated as Crown_damaged muliplied by Total_leaf_area reported in meters squared (m2)

17 Canopy_mass_lost kg Total mass of canopy lost to damage calculated as Crown_damaged muliplied by Biomass_crown reported in kilograms (kg)



Note: missing data represented by -999

Example data records



Gap_no,Tree_id,Damage_code,Live_dead,DBH,Snap_ht,Crown_damaged,Biomass_total_Manaus,Biomass_crown,Biomass_bole,

Biomass_total_TMF,Bole_ht,Bole_snap_fraction,Bole_snap_mass,Leaf_area_total,Leaf_area_lost,Canopy_mass_lost



A-11,474,CL,L,38.9,0,0.15,1584.01,527.46,1014.2,

1487.42,16.47,1,1014.2,150.99,22.65,79.12

A-11,475,CL,L,38.6,0,0.3,1556.52,517.11,997.33,

1459.36,16.41,1,997.33,149.47,44.84,155.13

A-11,-999,BS,D,35.9,15.51,1,1317.99,428.5,850.45,

1219.79,15.84,0.02,13.14,135.67,135.67,428.5

A-11,-999,BS,D,24.3,9.98,1,506.47,147.09,339.55,

453.29,13.61,0.21,72.47,74.95,74.95,147.09



File #2:CD04_KM83_Logged_Tree_Statistics.csv



Column Heading Units/Format Description

1 Gap_no ROW-NUM Location within the 18-ha grid where stump was located.

2 Notes Notes

3 Tree_id_LBA LBA tag number installed 2000

4 Tree_id_Cemex CEMEX tag number installed 1984

5 Common_name Tree common name

6 Species Tree species

7 Family Tree family

8 Azimuth degrees Direction of tree fall from stump to crown in degrees

9 Stump_longitude UTM Location of stump in UTM longitude units based on GPS measurements

10 Stump_latitude UTM Location of stump in UTM latitude units based on GPS measurements

11 Log_length m Log length in meters estimated as distance from stump to crown. Tree_id_LBA =403, and Grid_no = F-9 had no recorded log length and was given mean log length value of 19.87 m for calculation purposes

12 DBH cm Logged tree diameter at breast height (DBH). Two trees with no tag or missing DBH were given the mean DBH value of 82.5 cm. These trees, with Grid_no/Tree_id_LBA are A-11/473 and F-3/-999

13 Biomass_total_Manaus kg Total tree biomass dry weight calculated using the allometric equations developed for Manaus in Chambers et al. (2001), reported in kilograms (kg)

14 Biomass_crown kg Tree crown biomass dry weight calculated using the equations in Chambers et al. (2001) reported in kilograms (kg)

15 Bole_bole kg Tree bole biomass dry weight calculated using the equations in Chambers et al. (2001) reported in kilograms (kg)

16 Biomass_total_TMF kg Total tree biomass dry weight calculated using the general tropical moist forest equations from Chambers et al. (2001), reported in kilograms (kg)

17 Bole_ht m Estimated total bole height calculated using the equations in Chambers et al. (2001), reported in meters (m)

18 Bole_removed Fraction of bole removed as log calculated as Log_length divided by Bole_ht

19 Bole_remaining m Length of bole remaining calculated as Bole_ht minus Log_length and reported in kilograms (kg)

20 Bole_mass_removed kg Mass of bole removed in logging operations calculated as Biomass_bole multiplied by Bole_removed and reported in kilograms (kg). For trees where the Log_length was greater than Bole_ht, Bole_removed was set to 1 and Bole_mass_removed was calculated accordingly

21 Bole_mass_remaining kg Mass of bole remaining in logging operations calculated as Biomass_bole minus Bole_removed and reported in kilograms (kg)

22 Leaf_area_total m2 Total tree leaf area calculated using the equations in Chambers et al. (2004), reported in meters squared (m2)



Note: missing data represented by -999. The absence of notes = none provided



Example data records



Gap_no,Notes,Tree_id_LBA,Tree_id_Cemex,Common_name,Species,Family,Azimuth,Stump_longitude,Stump_latitude,

Log_length,DBH,Biomass_total_Manaus,Biomass_crown,Biomass_bole,Biomass_total_TMF,Bole_ht,Bole_removed,

Bole_remaining,Bole_mass_removed,Bole_mass_remaining,Leaf_area_total



A-11,none provided,473,2453,Abiu casca grossa,Pouteria biloculares (Winkler)Baehni, Sapotaceae,157,210725724,9666130,

24.8,65.7,4547.4,1746.77,2795.11,5114.41,23.36,1.09,

-1.44,3040.56,-245.45,267.59

A-11,-none provided,477,2450,Tauari,Couratari guianensis Aubl.,Lecythidaceae,156, 210725702,9666184,

19.4,64.6,4415.6,1689.48,2716.54,4924.26,23.03,0.8,

3.63,2161.65,554.89,263.6

A-11,missing DBH,473,2457,Capitiu,Dendrobangia sp.,Icacinaceae,-999,-999,-999,

11.8,82.5,6530.09,2626.92,3980.89,8401.74,29.08,0.34,

17.28,1338.26,2642.63,320.49

A-18,none provided,738,2110,Macaranduba,Manilkara huberi (Ducke) Chev.,Sapotaceae,-999, -999,-999,

24,84,6700.28,2703.58,4083.39,8727.68,29.65,0.76,

5.65,3086.43,996.96,324.52

A-2,none provided,111,3000,Ucuuba terra firme,Virola melionii (Ben.)Warb.,Myristicaceae, 304,210725487,9666032,

27.4,74.7,5622.46,2220.45,3436.65,6789.4,26.27,1.06,

-1.13,3645.72,-209.08,297.75

B-0,none provided,6,3281,Macaranduba,Manilkara huberi (Ducke) Chev.,Sapotaceae,309, 210725416,9666075,

19.5,103,8680.91,3597.87,5293.85,13245.65,37.99,0.44,

18.49,2318.01,2975.83,367.18

B-1,none provided,2,3279,Macaranduba,Manilkara huberi (Ducke) Chev.,Sapotaceae,80, 210725429,9666082,

22,78,6010.54,2393.68,3668.92,7454.22,27.42,0.75,

5.42,2742.45,926.48,307.74

...



Data Application and Derivation:

These data allow a quantitative evaluation of the amount of biomass affected by reduced impact logging in a mature lowland tropical forest.

Quality Assessment (Data Quality Attribute Accuracy Report):

Quality Assessment:

The data have been checked and no further changes are anticipated. For calculation purposes missing DBH and snap or log lengths were replaced with mean values for each as noted below.



For the CD04_KM83_Damaged_Tree_Statistics.csv file, trees with no recorded DBH were given a value of 18.17 cm which represents mean DBH, and for trees with no recorded snap height, a value of 3.12 m was used, which represents the mean for the data set. Trees for which Snap_ht (estimated in the field) was greater than Bole_ht (calculated from allometric equations), Bole_snap_fraction was set to 1.



For the CD04_KM83_Logged_Tree_Statistics.csv file, trees with no tag or missing DBH were given the mean DBH value of 82.5 cm, and trees with no recorded log length were given mean log length value of 19.87 m for calculation purposes. For trees where the Log_length was greater than Bole_ht, Bole_removed was set to 1 and Bole_mass_removed was calculated accordingly.

Process Description:

Data Acquisition Materials and Methods:

In March 2000, a 18-hectare plot (30 0m N-S by 60 0m E-W) directly east of the eddy flux tower at km 83, Tapajos National Forest, Para, Brazil, was surveyed. A grid of transects 25 meters apart was established and for all trees with a diameter at breast height (DBH) > 35 centimeters, diameter, commercial and total height, location within the plot, species common name, and condition (live, dead, damaged etc.) were recorded (Menton et al., 2011).



Between September and December 2001, the area was subjected to a reduced impact logging which removed 2-3 trees per hectare. As part of the reduced impact management, individual trees targeted were identified, vines cut to avoid damage to adjacent trees, and skid trails and logging patios planned out well in advance. After the logging operations were complete, the plot was resurveyed, and for every stem with significant damage from the logging operations and every stem cut, standing stem (snap) height, DBH, and species were recorded. For the trees cut, the dimensions of the logs removed were also recorded, and for non-target trees that were damaged, the type of damage was also recorded. From allometric equations (Chambers et al., 2001) total tree biomass, crown biomass, bole biomass, and bole height were estimated. From these values, the mass removed from the forest as logs, as well as the biomass left on site as slash and associated damage, was estimated on the stem level.

References:

Chambers, J.Q., J. dos Santos, R.J. Ribeiro and N. Higuchi. 2001. Tree damage, allometric relationships, and above-ground net primary production in central Amazon forest. Forest Ecology and Management 152:73-84



Menton, M., M. 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

Skip navigation linksHOME | ABOUT | LIBRARY | NEWS ARCHIVE | CONTACTS | INVESTIGATIONS | LOGISTICS | DATA |TRAINING & EDUCATION

NASA logo
ORNL DAAC
Get Acrobat Reader