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NZ Arb Hosted

Protecting trees on construction sites Workshop

About the Workshop

The workshop is in three parts. 


Part one includes a brief and basic recap on tree biology, it takes a look at root system architecture and fundamental tree allometry, and introduces some empirical research that investigates the effects of root removal.


Part two is all about the soil. It includes a recap on soil texture, structure and all the important ingredients for a healthy rhizosphere .


Part three takes a brief look at the RMA from an arborist’s perspective, and how the regulatory system influences our actions when it comes to tree preservation, and the role of the works arborist in that process. It wraps up with a selection of tricks and tips for tree protection techniques on work sites. 

The workshop content is relevant to anyone who has an interest in protecting trees from construction impacts, both during the design and implementation stages. 

This workshop is a Christchurch City Council requirement for all council approved Supervising Arborists

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About the Presenter

Andrew Benson is an arboricultural consultant in Auckland with a specialist interest in the below-ground world of trees. He is regularly called on by the ISA to provide technical input into best practice recommendations and has presented his research findings at conferences around the world. With a Ph.D. from the University of Canterbury, Andrew will deliver this half-day workshop on how to protect trees from construction impacts. 

Registration Information

NZ Arb Member $230+GST per person
Non Member $280+GST per person

Included: Tea/Coffee and morning tea

Time: Each course runs from 9am - 1pm

To register click on your preferred course location below and complete the registration form.  Payment is possible by invoice, Purchase Order or Credit Card.

Terms and Conditions:

By submitting this Registration Form, you are confirming your availability to attend the NZ Arb Workshop
Cancellation will not be accepted. The booking will be charged and invoiced with the full fee.
If a registrant is unable to attend the course, the registration may be transferred to another suitable person to attend 2 days before start. All transfer requests must include the new attendee’s name, email address and telephone number and received in a written format and can be emailed to
No refunds will be given by NZ Arb for no-shows.

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