AHCARB604
Measure and improve the performance of urban forests


Application

This unit of competency describes the skills and knowledge required to measure and improve the performance of trees.

This unit applies to individuals with broad theoretical and technical knowledge of a specific area or a broad field of work and learning and cognitive, technical and communication skills to demonstrate autonomy, judgement and defined responsibility in undertaking complex work within broad parameters to provide specialist advice and functions.

The role involves the self-directed application of specialised knowledge in arboriculture with substantial depth in areas of tree performance and carbon sequestration.

No occupational licensing, legislative or certification requirements are known to apply to this unit at the time of publication.


Elements and Performance Criteria

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Research urban forest practices and applications

1.1 Research urban forest case studies and management reports

1.2 Review best management practices in urban forest planning and management

1.3 Research applications and functional tools measuring benefits of urban forests

2. Analyse and report on urban forest benefits

2.1 Analyse social benefits of urban forests

2.2 Analyse psychological benefits of urban forests

2.3 Analyse environmental benefits of urban forests

2.4 Document evidence-based research into a preliminary report on benefits of urban forests

3. Determine values of urban forest benefits

3.1 Conduct sampling analysis of an urban forest

3.2 Determine required sample size to assess total tree population

3.3 Determine accuracy of sample size

3.4 Calculate canopy cover, total carbon storage, annual carbon dioxide sequestration, rainfall interception, air pollution removal, energy savings benefit, environmental benefits and amenity benefits

3.5 Identify base financial value for each functional benefit

3.6 Calculate financial values of functional and environmental benefits of current tree population

3.7 Determine benefits of heat island modification of urban areas

3.8 Document a preliminary report on total asset valuation of an urban forest

4. Analyse and compile results

4.1 Analyse urban forest structure and functions

4.2 Describe urban tree population half-life, vacant planting ratio, species distribution and population diversity

4.3 Estimate life expectancy of tree population

4.4 Compile results of urban forest analysis

5. Document a report on improvement of urban forests

5.1 Identify urban forest issues within tree population sample area

5.2 Determine recommendations for tree species and diversity

5.3 Determine extent of current tree planting and replacement programs

5.4 Determine volume and rate of planting programs required for improvements to urban forest performance

5.5 Determine required modifications to planting practices

5.6 Determine targets for urban forest improvement

5.7 Document a report on urban forest performance that provides recommendations for improvement of urban forests

Evidence of Performance

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence for and demonstrate:

researching urban forest case studies and management reports

reviewing best management practices in urban forest planning and management

researching applications and functional tools measuring benefits of urban forests

analysing social benefits of urban forests

analysing psychological benefits of urban forests

analysing environmental benefits of urban forests

documenting evidence-based research into a preliminary report on benefits of urban forests

conducting sampling analysis of an urban forest

determining required sample size to assess total tree population

determining accuracy of sample size

calculating canopy cover, total carbon storage, annual carbon dioxide sequestration, rainfall interception, air pollution removal, energy savings benefit, environmental benefits and amenity benefits

identifying base financial value for each functional benefit

calculating financial values of functional and environmental benefits of current tree population

determining benefits of heat island modification of urban areas

documenting a preliminary report on total asset valuation of an urban forest

analysing urban forest structure and functions

describing urban tree population half-life, vacant planting ratio, species distribution and population diversity

estimating life expectancy of tree population

compiling results of urban forest analysis

identifying urban forest issues within tree population sample area

determining recommendations for tree species and diversity

determining extent of current tree planting and replacement programs

determining volume and rate of planting programs required for improvements to urban forest performance

determining required modifications to planting practices

determining targets for urban forest improvement

documenting a report on urban forest performance that provides recommendations for improvement of urban forests.


Evidence of Knowledge

The candidate must demonstrate knowledge of:

urban forest case studies

urban forest management reports

best management practices in urban forest planning and management

applications and functional tools measuring benefits of urban forests

social benefits of urban forests

psychological benefits of urban forests

environmental benefits of urban forests

evidence-based research

analysis of sampling of an urban forest

requirements of sample sizes to assess total tree populations

accuracy of sample size

calculations of canopy cover, total carbon storage, annual carbon dioxide sequestration, rainfall interception, air pollution removal, energy savings benefit, environmental benefits and amenity benefits

base financial value for functional benefits of urban forests

calculations of financial values of functional and environmental benefits of tree populations

benefits of heat island modification of urban areas

total asset valuation of an urban forest

urban forest structure and functions

urban tree population half-life, vacant planting ratio, species distribution and population diversity

life expectancy of tree population

urban forest analysis

identification of urban forest issues within tree population sample areas

recommendations for tree species and diversity

tree planting and replacement programs

volume and rate of planting programs

modifications to planting practices

targets for urban forest improvement.


Assessment Conditions

Assessment must be demonstrated consistently over time in a suitable range of contexts and have a productivity-based outcome. No single assessment event or report is sufficient to achieve competency in this unit.

Assessment may be conducted in a simulated or real work environment, however determination of competency requires the application of work practices under work conditions.

The mandatory equipment and materials used to gather evidence for assessment include:

equipment:

computer

word processing software

statistical software

internet connection

measurement and data collection tools

materials:

report on urban forest performance

Assessors must satisfy current standards for RTOs in the assessment of arboriculture units of competency.

Assessment must be conducted only by persons who have:

arboriculture vocational competencies at least to the level being assessed

current arboriculture industry skills directly relevant to the unit of competency being assessed


Foundation Skills

Foundation Skills essential to performance are explicit in the performance criteria of this unit of competency.


Range Statement


Sectors

Arboriculture (ARB)