SuperSites Data Portal
Leaf Area Index Data, Victorian Dry Eucalypt SuperSite, Whroo, 2015
- Citation
-
Beringer, J; McHugh, I (): Leaf Area Index Data, Victorian Dry Eucalypt SuperSite, Whroo, 2015. TERN Australian SuperSite Network. http://supersites.tern.org.au/knb/metacat/supersite.292.6/html
- Identifier
-
- docid
- supersite.292.6
- Data Creators
-
- Individual
- Jason Beringer
- Organization
- University of Western Australia
- Individual
- Ian McHugh
- Position
- Technical Officer
- Organization
- Monash University
- Abstract
-
Leaf area index (LAI) can be defined as the total one sided area of leaf tissue per unit area of ground and is a key derived parameter that is associated with water and light interception, radiation transfer, water and carbon exchange (BreĢda, 2003). Canopy cover can be defined as the fraction of ground shaded by the vertical projection of tree crowns (Walker et al. 1981). These measures may be used as proxies for actual canopy leaf area. Leaf area index is the preferred measure of cover for vegetation and as a key variable used in total biomass estimation and in carbon cycling prediction models. Indirect measures of LAI include digital photographic methods using flat or hemispherical images, referred to respectively as DCP (digital cover photography) and DHP (digital hemispheric photography). LAI measurements are carried out at each SuperSite using the most appropriate method for the vegetation type present. Digital Cover Photography (DCP) is recommended for medium stature (10-40 m) vegetation with simple structure. DCP was originally developed for sparse to moderately dense broadleaf forest and has also been tested in sparse savanna woodland. DCP is recommended for these vegetation types and has also been suggested for more dense forests (Pekin and MacFarlane 2009). Digital Hemispheric Photography (DHP) is recommended for short vegetation (4-8 m) e.g. low banksia woodland, complex (multi strata) and tall vegetation (> 40+ m) using images taken 20 m apart (MacFarlane et al. 2007).
- Contacts for Questions on the Use and Interpretation of Data
-
- Individual
- Ian McHugh
- Position
- Technical Officer
- Organization
- Monash University
- Address
-
School of Earth, Atmosphere and Environment
Clayton. VIC 3800
Australia
- Phone
-
- voice
- 03 9905 4624
- Email Address
- ian.mchugh@monash.edu.au
- Methods and Sampling Information
-
- Methods
-
Method Step 1
- Description
-
Digital Hemispheric Photography
Photographs are taken along six 100 m transects (20 m spacing) at 20 m intervals in the core 1 ha. Photographs are taken at the intercepts along the five transects, totaling 36 positions. Images are acquired with the camera looking towards the sky at the nadir (0°) using a tripod mount and level. Raw image files are stored on a dedicated SuperSite image data base. Images grouped into folders according to transect number. Folder names are derived from SuperSite code_Date (YYYYMMDD)_LAI method (DCP or DHP)_Transect number(T##). Images are acquired with the camera looking towards the sky at the nadir (0°) using a tripod mount and level.
- Keywords and Subject Categories
-
-
- LAI
- leaf area index
- Victorian Dry Eucalypt
- Whroo
- VICD
- anzsrc-for
-
- 0502
-
- Geographic Coverage
-
- Geographic Description
- Whroo goldfields region northeast (approximately 20km) of Nagambie, Victoria
- Bounding Coordinates
-
- West
- 145.02843 degrees
- East
- 145.029247 degrees
- North
- -36.672 degrees
- South
- -36.673215 degrees
- Temporal Coverage
-
- Date
- 2015
- Intellectual Rights, Licence and Usage Conditions
-
CC-BY-4_0
- Data Table
-
- Name
- asn_vicd_whroo_veg_lai_data_core_1_ha_20150318.csv
- Description
- Leaf Area Index, Whroo, March 2015
- Attribute Information
-
date
- Name
- date
- Definition
- Date of observations
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- dd/mm/yy
- Precision
- 0
transect_start_time- Name
- transect_start_time
- Definition
- Start time
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- hh:mm
transect_end_time- Name
- transect_end_time
- Definition
- End time
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- hh:mm
operator- Name
- operator
- Definition
- Name of operator
- Measurement Type
- ordinal
- Measurement Domain
-
- Text Domain
-
- Definition
- Operator
plot- Name
- plot
- Definition
- Plot name
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- plot name
transect_no- Name
- transect_no
- Definition
- Transect Number
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- Transect ID
folder_name- Name
- folder_name
- Definition
- Image folder name as stored in SuperSites image database
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- folder name
method- Name
- method
- Definition
- Photographic method
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- method
zenith_range- Name
- zenith_range
- Definition
- Zenith range
- Measurement Type
- ratio
- Measurement Domain
-
- Standard Unit
- degree
- Number Type
- natural
lai- Name
- lai
- Definition
- Leaf Area Index
- Measurement Type
- ratio
- Measurement Domain
-
- Standard Unit
- number
- Number Type
- natural
comments- Name
- comments
- Definition
- Additional information
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- comments
- Number Of Records
- 12
- Physical Structure Description
-
- Object Name
- asn_vicd_whroo_veg_lai_data_core_1_ha_20150318.csv
- Size
- 1459 byte
- Text Format
-
- Number of Header Lines
- 1
- Record Delimiter
- #x0A
- Attribute Orientation
- column
- Simple Delimited
-
- Field Delimiter
- ,
- Distribution
-
Online
- URL
- supersite.699.1
- Access
-
- Access Control
-
- Auth System
- knb
- Order
- allowFirst
- Allow:
-
Permission Principal [read] cn=allusers,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=mchugh,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=beringer,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=supersite,o=unaffiliated,dc=ecoinformatics,dc=org
- Name
- asn_vicd_whroo_veg_lai_data_core_1_ha_20150625.csv
- Description
- Leaf Area Index, Whroo, June 2015
- Attribute Information
-
date
- Name
- date
- Definition
- Date of observations
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- dd/mm/yy
- Precision
- 0
transect_start_time- Name
- transect_start_time
- Definition
- Start time
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- hh:mm
transect_end_time- Name
- transect_end_time
- Definition
- End time
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- hh:mm
operator- Name
- operator
- Definition
- Name of operator
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- Operator
plot- Name
- plot
- Definition
- Plot name
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- plot name
transect_no- Name
- transect_no
- Definition
- Transect Number
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- transect ID
folder_name- Name
- folder_name
- Definition
- Image folder name as stored in SuperSites image database
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- folder name
method- Name
- method
- Definition
- Photographic method
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- method
zenith_range- Name
- zenith_range
- Definition
- Zenith range
- Measurement Type
- ratio
- Measurement Domain
-
- Standard Unit
- degree
- Number Type
- natural
lai- Name
- lai
- Definition
- Leaf Area Index
- Measurement Type
- ratio
- Measurement Domain
-
- Standard Unit
- number
- Number Type
- natural
comments- Name
- comments
- Definition
- Additional information
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- comments
- Number Of Records
- 12
- Physical Structure Description
-
- Object Name
- asn_vicd_whroo_veg_lai_data_core_1_ha_20150625.csv
- Size
- 1369 byte
- Text Format
-
- Number of Header Lines
- 1
- Record Delimiter
- #x0A
- Attribute Orientation
- column
- Simple Delimited
-
- Field Delimiter
- ,
- Distribution
-
Online
- URL
- supersite.700.1
- Access
-
- Access Control
-
- Auth System
- knb
- Order
- allowFirst
- Allow:
-
Permission Principal [read] cn=allusers,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=mchugh,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=beringer,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=supersite,o=unaffiliated,dc=ecoinformatics,dc=org
- Name
- asn_vicd_whroo_veg_lai_data_core_1_ha_20151207.csv
- Description
- Leaf Area Index, Whroo, December 2015
- Attribute Information
-
date
- Name
- date
- Definition
- Date of observations
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- dd/mm/yyyy
- Precision
- 0
transect_start_time- Name
- transect_start_time
- Definition
- Start time
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- hhmm
transect_end_time- Name
- transect_end_time
- Definition
- End time
- Measurement Type
- dateTime
- Measurement Domain
-
- Format
- hhmm
operator- Name
- operator
- Definition
- Name of operator
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- Operator
plot- Name
- plot
- Definition
- Plot name
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- plot name
transect_no- Name
- transect_no
- Definition
- Transect number
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- Transect ID
folder_name- Name
- folder_name
- Definition
- Image folder name as stored in SuperSites Image database
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- folder name
method- Name
- method
- Definition
- Photographic method
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- method
zenith_range- Name
- zenith_range
- Definition
- Zenith range
- Measurement Type
- ratio
- Measurement Domain
-
- Standard Unit
- degree
- Number Type
- natural
lai- Name
- lai
- Definition
- Leaf Area Index
- Measurement Type
- ratio
- Measurement Domain
-
- Standard Unit
- number
- Number Type
- natural
comments- Name
- comments
- Definition
- Additional information
- Measurement Type
- nominal
- Measurement Domain
-
- Text Domain
-
- Definition
- comments
- Number Of Records
- 11
- Physical Structure Description
-
- Object Name
- asn_vicd_whroo_veg_lai_data_core_1_ha_20151207.csv
- Size
- 1435 byte
- Text Format
-
- Number of Header Lines
- 1
- Record Delimiter
- #x0A
- Attribute Orientation
- column
- Simple Delimited
-
- Field Delimiter
- ,
- Distribution
-
Online
- URL
- supersite.701.1
- Access
-
- Access Control
-
- Auth System
- knb
- Order
- allowFirst
- Allow:
-
Permission Principal [read] cn=allusers,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=mchugh,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=beringer,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=supersite,o=unaffiliated,dc=ecoinformatics,dc=org
- Access
-
- Access Control
-
- Auth System
- knb
- Order
- allowFirst
- Allow:
-
Permission Principal [read] public [all] uid=supersite,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=beringer,o=unaffiliated,dc=ecoinformatics,dc=org [all] uid=mchugh,o=unaffiliated,dc=ecoinformatics,dc=org
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