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Data

Alice Mulga Stem Diameter, Height and Aboveground Woody Biomass Data 2014 

Ver: 1.0
Status of Data: completed
Update Frequency: notPlanned
Security Classification: unclassified
Record Last Modified: 2026-05-07
Viewed 426 times
Accessed 198 times
Dataset Created: 2022-01-28
Dataset Published: 2022-04-20
HTTPPoint-of-truth metadata URL
HTTPro-crate-metadata.json
Data can be accessed from the following links:
HTTPTERN EcoPlots Portal
HTTPAlice_Mulga_diameter_height_biomass_data_dictionary
HTTPAlice_Mulga_diameter_height_biomass_data
HTTPAlice_Mulga_site_level_biomass_data
How to cite this collection:
Cleverly, J. (2022). Alice Mulga Stem Diameter, Height and Aboveground Woody Biomass Data 2014. Version 1.0. Terrestrial Ecosystem Research Network. Dataset. https://portal.tern.org.au/metadata/c2968de2-1e8b-4a05-919f-46744b3171ed 
This data contains stem diameter, height measurement and above ground living biomass calculations for 100 stems located in the Alice Springs Mulga flux tower footprint from 2014.  
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. This work was funded by the Terrestrial Ecosystem Research Network (TERN), an Australian Government National Collaborative Research Infrastructure Strategy (NCRIS) project. 
Purpose
This dataset records tree diameter and height data used to calculate above-ground biomass across vegetation types in Australia. This data is important for mapping and monitoring changes in plant growth, carbon storage and terrestrial energy fluxes.  
Lineage
Tree survey:
All stems within a subplot (0.06 ha) were mapped in 2014. Stem basal diameter (20 cm from the ground) and height was measured for all trees in 2014. Data was not surveyed again, but based on dendrometer records a uniform basal area increment was applied to all stems in 2018. Note that this was not a repeat surveying of individual stems.
Biomass calculations:
The biomass for each stem was calculated using allometric equations from Navar et al., 2013, Regional aboveground biomass equations for North American arid and semi-arid forests. Journal of Arid Environments 97, 127-135.
Site level above ground woody biomass calculations were scaled up to tonnes/ha. 
Method DocumentationData not provided.
Procedure StepsData not provided.
Spatial Description
The Alice Mulga site is approximately 200 km north of Alice Springs on Pine Hill Cattle Station in the Northern Territory. It lies in the arid and semi-arid portion of mainland Australia that receives less than 500 mm of annual rainfall. 
Temporal Coverage
From 2014-01-21 to 2014-01-21 
Spatial Resolution

Data not provided.

Vertical Extent

Data not provided.

Data Quality Assessment Scope
Potential diameter and height outliers were assessed by looking at the absolute difference in 1) diameter and 2) height values for each individual stem between two measurement time points. If the diameter or height difference for an individual falls outside the 3rd standard deviation of the mean of that species, then it was flagged as a potential outlier. 
Data Quality Report
Data not provided. 
Data Quality Assessment Outcome
All potential outliers were assessed by researchers who collected the data. Any value that was considered to be an outlier was removed from the final dataset. 
ANZSRC - FOR
Community ecology (excl. invasive species ecology)
Ecology
Forest biodiversity
Forestry biomass and bioproducts
Forestry management and environment
Forestry sciences
Forestry sciences not elsewhere classified
GCMD Sciences
BIOSPHERE - BIOMASS
BIOSPHERE - BIOMASS DYNAMICS
BIOSPHERE - COMMUNITY DYNAMICS
BIOSPHERE - COMMUNITY STRUCTURE
BIOSPHERE - ECOLOGICAL DYNAMICS
BIOSPHERE - FOREST COMPOSITION/VEGETATION STRUCTURE
BIOSPHERE - PLANT CHARACTERISTICS
BIOSPHERE - PRIMARY PRODUCTION
BIOSPHERE - VEGETATION
Horizontal Resolution
100 meters - < 250 meters
Parameters
above-ground biomass
stem diameter
stem height
Platforms
Alice Mulga, Tower Footprint
Project
TERN Ecosystem Processes
Temporal Resolution
one off
Topic
biota
environment
User Defined
Alice Mulga
standing above ground biomass
Author
Cleverly, Jamie
Contact Point
Cleverly, Jamie
Griebel, Anne
Publisher
Terrestrial Ecosystem Research Network
Navar et al. 2013. Regional aboveground biomass equations for North American arid and semi-arid forests. Journal of Arid Environments 97, 127-135.
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