[CANUFNET] Hand pull testing

Mon May 1 10:44:32 EDT 2017

HI Rob
what size tree?
on small trees  = if cannot pull out with healthy tug by an adult who is monitoring the planting. 
Note Blow downs of mature trees occur at 60-80 km per hr 
Alice 

> On Apr 28, 2017, at 3:18 PM, Reny, Robert via CANUFNET <canufnet at list.web.net> wrote:
> 
> Hi All,
>  
> Does anyone have any data or guidelines for replicating a force on a tree when performing a hand pull test? As part of our advanced risk assessment techniques, we will perform a hand pull test on smaller trees to assess soil, root or trunk movement. We’re curious as to the amount of force necessary to adequately represent a wind speed of up to 80 km/h. Any information on this subject would be appreciated.
>  
> Thanks,
>  
> ROB RENY | COORDINATOR, URBAN FORESTRY
> 
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