SuperSites Data Portal

Leaf Area Index Images, South East Queensland Peri-urban SuperSite, Samford, Core 1 ha, 2016

Citation

Grace, P (): Leaf Area Index Images, South East Queensland Peri-urban SuperSite, Samford, Core 1 ha, 2016. TERN Australian SuperSite Network. http://supersites.tern.org.au/knb/metacat/supersite.754.3/html

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Identifier
docid
supersite.754.3
Data Creators
Individual
Prof Peter Grace
Organization
Institute for Future Environments, Queensland University of Technology
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. Canopy cover can be defined as the fraction of ground shaded by the vertical projection of tree crowns. These measures may be used as proxies for actual canopy leaf area. Leaf area index is the preferred measure of cover for vegetation and is 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 Digital Cover Photography (DCP) and Digital Hemispheric Photography (DHP). LAI measurements are carried out at each SuperSite using the most appropriate method for the vegetation type present. Digital Cover Photography was carried out at the South East Queensland Peri-urban SuperSite, Samford, Core 1 ha plot on Jan 19, 31 May, 23 Aug, 15 Nov 2016. Leaf Area Index images are available for viewing and download from the TERN SuperSites BioImage Portal http://bioimages.supersites.net.au/data/photopoint/seqp_samford/default

Contacts for Questions on the Use and Interpretation of Data
Individual
Dr David Rowlings
Organization
Queensland University of Technology
Address
Brisbane. QLD 4001
Australia
Email Address
d.rowlings@qut.edu.au
Methods and Sampling Information
Methods
Method Step 1
Description
LAI Image Collection

81 images were captured in each one hectare plot at 10m spacing. LAI image collection was carried out generally as described in SuperSites Vegetation Monitoring Protocols, TERN Australian SuperSite Network, http://dx.doi.org/10.4227/05/56134C1310F16

Instrument
  • Camera make: Nikon
  • Camera model: 5200 SLR
  • Lens details: AF-S DX Nikkor 18-55 mm, f/3.5-5.6G VR
  • Photo height: 130 cm
  • Aperture: F8
  • ISO: 200
  • Exposure: negative 1 below auto
Keywords and Subject Categories
anz-src
  • 0501
  • 0602
  • 0607
  • South East Queensland Peri-urban SuperSite
  • SEQ
  • SERF
  • SEQP
  • Samford
  • Leaf Area Index Images
  • Core 1 ha
  • Digital Cover Photography
  • LAI
Geographic Coverage
Geographic Description
Samford Ecological Research Facility, Samford, Brisbane, Queensland
Bounding Coordinates
West
152.804 degrees
 
East
152.804 degrees
 
North
-27.338 degrees
 
South
-27.338 degrees
 
Temporal Coverage
Date
2016
Intellectual Rights, Licence and Usage Conditions

CC-BY-4_0

Distribution
Online
Description
Download data from the TERN SuperSites BioImage Portal
URL
http://bioimages.supersites.net.au/data/photopoint/seqp_samford/default
Access
Access Control
Auth System
knb
Order
allowFirst
Allow:
PermissionPrincipal
[read] public
[all] uid=supersite,o=unaffiliated,dc=ecoinformatics,dc=org
[all] uid=grace,o=unaffiliated,dc=ecoinformatics,dc=org