TERN Geospatial Catalogue
Warra Tall Eucalypt Coarse Woody Debris Data
This data contains diameter, length volume, biomass and carbon measurements of all coarse woody debris pieces within the core 1 ha plot at the Warra Tall Eucalypt site in 2015.
Simple
Identification info
- Date (Creation)
- 2015-06-03
- Date (Publication)
- 2022-12-15
- Date (Revision)
- 2014-07-14
- Edition
- 1
Publisher
Author
University of Tasmania - Wardlaw, Tim (Dr)
Churchill Ave, Hobart, TAS, 7005, Australia
Hobart
TAS
7005
Australia
- Website
- https://www.tern.org.au/
- Purpose
- Coarse woody debris (CWD) is a fundamental component of forested ecosystems, providing habitat for organisms and play an important role in nutrient cycling and carbon storage.
- Credit
- We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
- Status
- On going
Point of contact
University of Tasmania - Wardlaw, Tim (Dr)
Churchill Ave, Hobart, TAS, 7005, Australia
Churchill Ave
Hobart
TAS
7005
Australia
- Topic category
-
- Biota
- Environment
Extent
- Description
- The Warra Tall Eucalypt site is approximately 60 km west south-west of Hobart, Tasmania. It lies partly within the Tasmanian Wilderness World Heritage Area.
N
S
E
W
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Temporal extent
- Time period
- 2015-06-03
- Title
- Sohn, J, McElhinny, C, Grove, SJ, Hilbig, E and Bauhus, J 2013 , 'A simplified inventory approach for estimating carbon in coarse woody debris in high-biomass forests' , Papers and Proceedings of the Royal Society of Tasmania, vol. 147 , pp. 15-24 , doi: 10.26749/rstpp.147.15.
- Title
- Grove, S. J., L. Stamm, and C. Barry. 2009. Log decomposition rates in Tasmanian Eucalyptus obliqua determined using an indirect chronosequence approach. Forest Ecology and Management 258:389-397.
- Website
-
Grove, S. J., L. Stamm, and C. Barry. 2009. Log decomposition rates in Tasmanian Eucalyptus obliqua determined using an indirect chronosequence approach. Forest Ecology and Management 258:389-397.
Related documentation
- Title
- C. E. Van Wagner, The Line Intersect Method in Forest Fuel Sampling, Forest Science, Volume 14, Issue 1, March 1968, Pages 20–26.
- Website
-
C. E. Van Wagner, The Line Intersect Method in Forest Fuel Sampling, Forest Science, Volume 14, Issue 1, March 1968, Pages 20–26.
Related documentation
- Maintenance and update frequency
- As needed
- GCMD Science Keywords
- ANZSRC Fields of Research
- TERN Platform Vocabulary
- TERN Parameter Vocabulary
-
- wood piece ID
- Unitless
- wood piece section
- Unitless
- coarse woody debris type
- Unitless
- thick end coarse woody debris horizontal axis diameter
- Centimetre
- thin end coarse woody debris horizontal axis diameter
- Centimetre
- thick end coarse woody debris vertical axis diameter
- Centimetre
- thin end coarse woody debris vertical axis diameter
- Centimetre
- coarse woody debris length
- Metre
- coarse woody debris void space
- Percent
- dead wood position
- Unitless
- coarse woody debris decay class
- Unitless
- coarse woody debris wood density
- Gram Per Cubic Centimetre
- coarse woody debris volume
- Cubic Metre
- coarse woody debris biomass
- Tonne
- coarse woody debris carbon
- Tonne
- coarse woody debris diameter at transect intersect
- Centimetre
- total stand coarse woody debris volume
- Cubic Meter per Hectare
- total stand coarse woody debris biomass
- tonne per hectare
- stand coarse woody debris carbon
- tonne per hectare
- GCMD Horizontal Resolution Ranges
- GCMD Temporal Resolution Ranges
- Keywords (Discipline)
-
- Warra Tall Eucalypt
- Forest
- Vegetation
- Biomass
- Carbon
- Coarse Woody Debris
Resource constraints
- Use limitation
- The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/
- File name
- 88x31.png
- File description
- CCBy Logo from creativecommons.org
- File type
- png
- Title
- Creative Commons Attribution 4.0 International Licence
- Alternate title
- CC-BY
- Edition
- 4.0
- Access constraints
- License
- Use constraints
- Other restrictions
- Other constraints
- TERN services are provided on an "as-is" and "as available" basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure. <br />Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN. <br /><br />Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting
- Other constraints
- Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.
Resource constraints
- Classification
- Unclassified
Distribution Information
Distributor
Distributor
- OnLine resource
- Warra_Tall_Eucalypt_CWD_data_dictionary
Distribution Information
Distributor
Distributor
- OnLine resource
- Warra_Tall_Eucalypt_site_level_CWD_data
Distribution Information
Distributor
Distributor
- OnLine resource
- Warra_Tall_Eucalypt_CWD_data
Distribution Information
Distributor
Distributor
Terrestrial Ecosystem Research Network
Building 1019, 80 Meiers Rd, Indooroopilly, QLD, Australia, 4068
Indooroopilly
QLD
4068
Australia
- OnLine resource
- TERN EcoPlots Portal
Resource lineage
- Statement
- Coarse woody debris sampling:<br> Coarse woody debris (CWD) was sampled at the Warra Tall Eucalypt site in 2015. Sampling was split into two separate events, with different methods based on the diameter range of the CWD pieces (thin end diameter of CWD either > 40 cm or < 40 cm). For all pieces of coarse woody debris within size specifications (small end diameter > 40 cm, length > 1.0 m) within the Core 1 ha plot were measured. The 40 cm small-end diameter threshold was based on the work of Sohn et al. (2013) in similar wet E. obliqua forests in the Warra Tall environment. The diameter of the vertical and horizontal axis of both the large and small ends of each piece was measured using a retractable carpenters tape. The small end was set at the 40 cm diameter threshold and any log sections of smaller diameter beyond this 40 cm cut-off point were not measured. The length of the log section between the large and small diameter measurement points was measured using a tape and assigned a decay class based on the decay classification described in Grove et al. (2009). Where necessary, logs were divided into two or more sections (each with separate diameter and length measurements) such that each log section was a homogenous decay class. Logs were also divided into separate sections at each point of bifurcation. The location of each end of each log (or log section) was measured as a perpendicular distance to the nearest boundary of the 20 x 20 m sub-plot in which that log section occurred. These x-y distances to the sub-plot boundary were then converted to the x – y co-ordinates of the 1 ha plot. Where possible the taxon of the tree species generating the log was determined.<br> All pieces of coarse woody debris < 40 cm diameter (at point of intersection with transect) that were intersected by transects were measured. Four, 50-metre transects were laid-out within the Core 1 ha plot using a measuring tape. The start and end points of the transects are given in the x-y co-ordinate system of the 1 ha plot with (0, 0) corresponding to the SW corner of the plot. The x co-ordinates run east-west and y co-ordinates run north-south. Transect 1 commenced at point (0, 20) and ended at (50, 20). Transect 2 commenced at point (80, 0) and ended at (80, 50). Transect 3 commenced at point (100, 80) and ended at (50, 80). Transect 4 commenced at point (20, 100) and ended at (20, 50). The diameter of the CWD piece at the point of intersection by transect was measured in one of two ways: a diameter tape for suspended CWD, or measurement of the cross-sectional diameter of the vertical and horizontal axes using a retractable builders measuring tape. Each piece of CWD intersected by transects was assigned a decay class based on the decay classification described in Grove et al. (2009); was attributed as being either a log or branch and where, possible, the taxon of the parent tree species was identified.<br> Calculation of coarse woody debris volume, biomass and carbon<br> For the CWD pieces > 40 cm diameter: The vertical and horizontal axis diameter measurements of each end of each log or log section were converted to a simple average diameter. The volume of the log or log section was calculated using Smalian’s formula: Volume = length * ((Diameter thick end + Diameter thin end )/2). Biomass was calculated as the product of volume and wood density. The wood density was determined by the assigned decay class of the log using values for E. obliqua given in Grove et al. (2009). The weight of carbon in the log was calculated as the product of the log biomass and the carbon concentration of the log (assumed to be 50%).<br> For the CWD pieces < 40 cm diameter: The contribution to total volume per hectare made by each piece of CWD was estimated using the formula developed by van Wagner (1968): volume = Dia^2 * 3.1415^2 /8 * L Where: L is the horizontal transect length (after correcting for average slope of each 50 m transect) and Dia is the diameter of the piece of CWD. Biomass was calculated as the product of volume and wood density. The wood density was determined by the assigned decay class of the log using values for E. obliqua given in Grove et al. (2009). The weight of carbon in the log was calculated as the product of the log biomass and the carbon concentration of the log (assumed to be 50%).
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/8e0a80f2-86d7-4c49-a77c-4f10e1249537
- Title
- TERN GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/8e0a80f2-86d7-4c49-a77c-4f10e1249537
Point-of-truth metadata URL
- Date info (Creation)
- 2022-08-17T00:00:00
- Date info (Revision)
- 2022-12-15T00:00:00
Metadata standard
- Title
- ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals
- Edition
- 1
Metadata standard
- Title
- ISO/TS 19115-3:2016
- Edition
- 1.0
Metadata standard
- Title
- ISO/TS 19157-2:2016
- Edition
- 1.0
- Title
- Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016
- Date (published)
- 2021
- Edition
- 1.0
Identifier
Overviews
Spatial extent
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S
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W
Provided by
Associated resources
Not available