Analyse tree biomechanics

Formats and tools

Unit Description
Reconstruct the unit from the xml and display it as an HTML page.
Assessment Tool
an assessor resource that builds a framework for writing an assessment tool
Assessment Template
generate a spreadsheet for marking this unit in a classroom environment. Put student names in the top row and check them off as they demonstrate competenece for each of the unit's elements and performance criteria.
Assessment Matrix
a slightly different format than the assessment template. A spreadsheet with unit names, elements and performance criteria in separate columns. Put assessment names in column headings to track which performance criteria each one covers. Good for ensuring that you've covered every one of the performance criteria with your assessment instrument (all assessement tools together).
Wiki Markup
mark up the unit in a wiki markup codes, ready to copy and paste into a wiki page. The output will work in most wikis but is designed to work particularly well as a Wikiversity learning project.
Evidence Guide
create an evidence guide for workplace assessment and RPL applicants
Competency Mapping Template
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners. A template for developing assessments for a unit, which will help you to create valid, fair and reliable assessments for the unit, ready to give to trainers and students
Observation Checklist
create an observation checklist for workplace assessment and RPL applicants. This is similar to the evidence guide above, but a little shorter and friendlier on your printer. You will also need to create a seperate Assessor Marking Guide for guidelines on gathering evidence and a list of key points for each activity observed using the unit's range statement, required skills and evidence required (see the unit's html page for details)

Self Assessment Survey
A form for students to assess thier current skill levels against each of the unit's performance criteria. Cut and paste into a web document or print and distribute in hard copy.
Moodle Outcomes
Create a csv file of the unit's performance criteria to import into a moodle course as outcomes, ready to associate with each of your assignments. Here's a quick 'how to' for importing these into moodle 2.x
Registered Training Organisations
Trying to find someone to train or assess you? This link lists all the RTOs that are currently registered to deliver AHCARB701, 'Analyse tree biomechanics'.
Google Links
links to google searches, with filtering in place to maximise the usefulness of the returned results
Reference books for 'Analyse tree biomechanics' on This online store has a huge range of books, pretty reasonable prices, free delivery in Australia *and* they give a small commission to for every purchase, so go nuts :)

Elements and Performance Criteria


Performance criteria

Elements describe the essential outcomes.

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

1. Determine existing physical loads and strengths of trees, branches and anchorage

1.1 Determine existing physical loads affecting trees

1.2 Identify areas of high stress on trees and the factors that affect these areas of high stress

1.3 Assess root plate environment including depth and consistency of soil, spatial limitations and history of site excavations

1.4 Assess prior tree pruning operations to branches and roots

1.5 Determine extent of decay and damage of trunk and root system

1.6 Assess strength and material properties of structural wood, particularly in areas of high stress

2. Determine wind load

2.1 Determine wind environment of tree

2.2 Determine surface area of structure exposed to wind

2.3 Determine crown surface area exposed to wind

2.4 Assess aerodynamic drag factor of tree crown in relation to trunk diameter and extent of hollowness

2.5 Estimate primary loads occurring in seasonal climatic events

2.6 Determine wind-load of prevailing storms

2.7 Determine load associated with saturated foliage

2.8 Consider additional drag associated with saturated foliage

3. Determine structural integrity by static load testing

3.1 Determine appropriate static load on trees for structural integrity testing as an estimate of a wind-equivalent load

3.2 Calibrate static load testing instruments so loads are accurately applied and maintained within limits of structural safety during a static test

3.3 Carry out a static test that loads the tree, measures the trunk strength and assesses root plate anchorage in the ground

3.4 Monitor loads and forces electronically

3.5 Monitor tree to ensure loads are kept within safe limits and damage is avoided to tree

3.6 Maintain accurate records of all data from static test.

3.7 Compare data with benchmarks obtained from stable tree populations

3.8 Document a report on structural integrity testing of tree from the static load test

4. Determine tree dynamic response

4.1 Research tree biomechanics studies using dynamic methods of analysis

4.2 Understand simple models of tree dynamics

4.3 Review complex models and finite element analyses that provide multimodal approaches representing dynamics of branches on trees

4.4 Calculate existing mass of branches

4.5 Determine degree of open-grown form of tree by calculation of the of branch mass

4.6 Calculate vector of force on the tree

4.7 Determine the tree dynamic response in defined wind velocity and direction

4.8 Document a report on structural integrity testing of tree from the dynamic load analysis

5. Document a structural integrity report

5.1 Research level of contribution of material properties in tree dynamics

5.2 Research dynamic effect of branches on frequency and damping

5.3 Determine level of contribution of form and morphology in tree dynamics

5.4 Review suitability of invasive and non-invasive methods of testing

5.5 Evaluate and determine likelihood of structural failure

5.6 Confirm level of anchoring potential of root system and stability of tree

5.7 Document a structural integrity report and provide to client