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Investigation:

ND-11 (Lehmann / Passos / Couto)

LBA Dataset ID:

ND11_ECOTONE_VEG

Originator(s):

1. JIRKA, S.
2. FELDPAUSCH, T.R.
      3. RIHA, S.J.

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 reports the results of a vegetation survey along transects across the transition zones between the three major forest types in the seasonally dry forest of the southwestern Amazon Basin in the municipality of Juruena, Mato Grosso in 2004. The major forest types are differentiated by tree species composition, biomass, soil type, and landscape position: (1) campinarana; high stem density and low biomass on sandstone outcrops, (2) palm forest; low-lying seasonally inundated areas dominated by palms and, (3) terra firme; low stem density and high biomass. Along these 10 x 100 m transects, all trees, palms, and lianas >= 10 cm DBH in 10 x 10 m plots and, in nested 2 x 10 m subplots, all trees, palms and lianas >=1 cm DBH were measured, identified and georeferenced. Plot locations and survey data are reported in two comma separated files.

Beginning Date:

2004-06-05

Ending Date:

2004-07-20

Metadata Last Updated on:

2010-03-15

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 ND-11 Ecotone Vegetation Survey and Biomass, NW Mato Grosso, Brazil: 2004 :  http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=964

Documentation/Other Supporting Documents:

LBA-ECO ND-11 Ecotone Vegetation Survey and Biomass, NW Mato Grosso, Brazil: 2004 :  http://daac.ornl.gov/LBA/guides/ND11_Veg_Biomass_MT.html

Citation Information - Other Details:

Jirka S., T.R. Feldpausch, and S.J. Riha. 2010. LBA-ECO ND-11 Ecotone Vegetation Survey and Biomass, NW Mato Grosso, Brazil: 2004. 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/964

Keywords - Theme:

Uncontrolled Theme Keyword(s):  BIOMASS , CAMPINHARANA , CONTROL, LANDSCAPE, PALM , STATURE, TERRA FIRME , VEGETATION

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
  MATO GROSSO -10.42490 -10.42490 -58.75970 -58.75970

Related Publication(s):

Jirka, S. 2006. Plant-environment associations and forest structure in the southern Amazon basin. Thesis. Cornell University.

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:

Data were collected in a one time survey conducted in June and July 2004 at the Fazenda Roshmar in the municipality of Juruena, in the state of Mato Grosso. Vegetation survey data are reported in the comma separated ASCII file: ND11_Vegetation_Class_Transects_MT_2004.csv



Along each transect, GPS coordinates for 3-5 points were recorded for purposes of georeferencing the 10 x 10 m plots. These coordinates are reported in the comma separated ASCII file: ND11_Vegetation_Class_Transects_GIS_points.csv





Data File: ND11_Vegetation_Class_Transects_MT_2004.csv







Column Column Name Units/format Variable Description

Number

1 Date YYYY/MM/DD Sampling date

2 Year YYYY Year sampled

3 Month MM Month sampled

4 Day DD Day sampled

5 ID Identification number for each individual plant

6 Transect Transect number; transects are 10 x 100 m except for transect 7 which is 10 x 50 m



7 Transect_type Qualitative assessment of dominant of 3 vegetation types; pa=palm, tf=tierra firme, ca=campinarana



8 Plot Each 10 x 10 m plot along the transect was assigned a number in sequential order



9 Subplot Each plot was divided into two subplots: 1= is the first 2 x 10 m subplot and all stems >=1 cm DBH were measured; 2= the remaining 8 x 10 m subplot and all stems >=10 cm DBH were measured in this subplot.



10 Section Identifies both the plot and the subplot in the format plot.subplot



11 X m Distance in meters (m) along the x (east-west) axis of the transect

12 Y m Distance in meters (m) along the y (north-south) axis of the transect

13 Health Qualitative assesment of the individuals status a=alive, d=dead



14 Life_form Life form; t=tree, l=liana, p=palm, sp=stemless palm



15 Common_name Common name in Portuguese

16 Scientific_name Scientific name, genus and species, when available

17 Family Scientific family, when available

18 DBH cm Diameter at breast height (cm); for lianas, 1.3 m from ultimate rooting point of all vines greater than 2 m height

19 Leaf_count Number of full grown leaves for stemless palms ( DBH not measured for these individuals)

20 Position Position; s=standing, l=leaning, p=prone

21 Branching_height m For trees, height to first major branch in meters (m). For palms, height to first leaf in meters (m).



22 Total_height m For trees, height to top of crown in meters (m). For palms, height to base of top leaf in meters (m).



23 Bifurcation_index Bifurcation index; Total_height/Branching_height



24 Canopy_position Position of tree or palm relative to surrounding canopy; u=understory, d=dominant, e=emergent



25 Dominant For individuals with multiple stems that have a DBH greater than 1cm, this is the id of the dominant individual

26 Notes Observations on individuals

27 Transect_notes Observations for the transect

28 Basal_area m2 Basal area of the individual in meters squared (m2) calculated from the DBH



Missing data is represented by -9999

Example data record:



Date,Year,Month,Day,ID,Transect,Transect_type,Plot,Subplot,Section,X,Y,Health,Life_form,Common_name,

Scientific_name,Family,DBH,Leaf_count,Position,Branching_height,Total_height,Bifurcation_index,Canopy_position,

Dominant,Notes,Transect_notes,Basal_area



2004/06/08,2004,6,8,1,2,pa,1,1,1.1,1.5,0.2,a,p,acai,Euterpe oleracea (Mart.),Arecaceae,3.2,-9999,s,2.4,3.3,0.727,u,

-9999,None,None,0.0008

2004/06/08,2004,6,8,2,2,pa,1,1,1.1,9.5,0.5,a,t,canela,Ocotea sp.,Lauraceae,1.9,-9999,s,-9999,3,-9999,u,-9999,None,None,0.0003

2004/06/08,2004,6,8,3,2,pa,1,1,1.1,7.5,0.5,a,p,pataua,Oenocarpus bataua,Arecaceae,24.2,-9999,s,10.6,14.1,0.752,d,-9999,changed to dominant Canopy_position,None,0.046

...

2004/07/17,2004,7,17,1303,7,pa,5,2,5.2,1.6,48,a,p,acai,Euterpe oleracea (Mart.),Arecaceae,14.5,-9999,s,-9999,17.7,-9999,d,

-9999,None,None,0.0165

2004/07/17,2004,7,17,1304,7,pa,5,2,5.2,0.4,47.5,a,p,acai,Euterpe oleracea (Mart.),Arecaceae,15,-9999,s,-9999,18.7,-9999,d,

-9999,None,None,0.0177

2004/07/17,2004,7,17,1305,7,pa,5,2,5.2,2.4,42.2,a,t,caixeta,Simarouba amara Aubl.,Simaroubaceae,71.3,-9999,s,-9999,35,-9999,e,

-9999,None,None,0.3991



Data file: ND11_Vegetation_Class_Transects_GPS_Points.csv



Column Number Column Name Units/format Variable Description



1 ID_point Unique identifier for each point

2 Transect Transect number

3 X m Distance in meters (m) from transect origin along the east-west axis

4 Y m Distance in meters (m) from transect origin along the north-south axis

5 Easting UTM Point location in UTM coordinates, Zone 22S

6 Northing UTM Point location in UTM coordinates, Zone 22S

7 Elevation masl Elevation at sampling point in meters above sea level (masl)

8 Year YYYY Year (YYYY)sampled

9 Month MM Month (MM) sampled

10 Day YYYY/MM/DD Day (DD) sampled

11 Time HH:MM Time (HH:MM) sampled with GPS in local time (GMT - 5) based on the 24 hour clock



Example data record:



ID_point,Transect,X,Y,Easting,Northing,Elevation,Year,Month,Day,Date,Time

P2M50E,2,0,50,336650,8842002,237.1,2004,6,7,2004/06/07,10:45

P2M80E,2,0,80,336637,8841977,218.3,2004,6,7,2004/06/07,10:57

P2M90E,2,0,90,336634,8841969,231.3,2004,6,10,2004/06/10,10:08

...

P6M0E,6,10,0,335187,8842167,243.6,2004,6,18,2004/06/18,11:57

P7M20S,7,10,50,336658,8842038,234.7,2004,7,7,2004/07/07,15:37

P7M0S,7,10,0,336636,8842062,221.7,2004,6,25,2004/06/25,11:57

Data Application and Derivation:

Most data sets on biomass in tropical forests ignore life forms other than trees and frequently ignore trees with diameters less than 10 cm. Our information on the amount and distribution of biomass in these systems is thus systematically biased because it includes other life forms and small diameter trees. The data reported here can be used to analyze spatial distribution of plant species and plant life form as well as the distribution of biomass between trees, palms and vines in a tropical forest.

Quality Assessment (Data Quality Attribute Accuracy Report):

Quality Assessment:

There is some known error associated with the GPS waypoints on the order of 5-15 meters. Similarly the diameters reported have an associated error of 0.2 cm.

Process Description:

Data Acquisition Materials and Methods:

Three major forest types differentiated by tree species composition, biomass, soil type and landscape position were identified: 1) campinarana; high stem density and low biomass on sandstone outcrops, 2) palm forest; low-lying seasonally inundated areas dominated by palms and, 3) terra firme; low stem density and high biomass. Using Landsat imagery and ground surveys, transition zones between eco-types were identified and six 10 x 100 m transects were established along transitions. Each vegetation type is represented by approximately two 10 x 100 m transects. All trees, palms, and lianas >=10 cm DBH and, in nested 2 x 10 m plots, all trees, palms and lianas >=1 cm DBH were measured, identified and georeferenced.



Transect Dimension Type Position Description

2 10 x 100 m Modal Lowland Palm-dominated forest located in a low-lying convergence zone



3 10 x 100 m Transition Lowland Transition from upland to palm-dominated scrub forest



4 10 x 100 m Transition Upland Transition from Oenocarpus bataua palm-dominated forest to campinarana



5 10 x 100 m Transition Upland Transition from upland to campinarana dominated by monospecific Attalea spec. palm stand





6 10 x 100 m Modal Upland Campinarana near edge of upland forest transition



7 10 x 50 m Modal Upland Upland forest near edge of palm-dominated transect 2

References:

Feldpausch TR, Jirka S, Passos CAM, et al. 2005. When big trees fall: Damage and carbon export by reduced impact logging in southern Amazonia. FOREST ECOLOGY AND MANAGEMENT 219: 2-3. 199-215.



Jirka, S., McDonald, A.J., Johnson, M.S., Feldpausch, T.R., Couto, E.G., Riha, S.J., 2007. Relationships between soil hydrology and forest structure and composition inthe southern Brazilian Amazon. Journal of Vegetation Science 18, 183-194. doi:10.1111/j.1654-1103.2007.tb02529.x





Related Publications



Jirka, S. 2006. Plant-environment associations and forest structure in the southern Amazon basin. Thesis. Cornell University.

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