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1st November 2009, 06:01 PM
| #61 |
| PDF King & Arborist Extrodinaire  Join Date: Feb 2007 Location: Townsville Nth Queensland & Gold Coast Sth Queensland
Posts: 2,155
|  Re: AS4970 Draft| Australian Development Tree Protection
12 X DBH is the RADIUS of the Tree Protection Zone. So a 400mm DBH Euc gets a TPZ of 4.8m radius
__________________ Sean  Trees are poems that earth writes upon the sky, We fell them down and turn them into paper, That we may record our emptiness. - Kahlil Gibran http://wanderingarborist.blogspot.com/ http://veterantreegroup.blogspot.com/ http://www.youtube.com/user/VeteranTreeGroup |
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1st November 2009, 06:54 PM
| #62 |
| Admin - Dip Arb & Hort & Seldom Wrong  Join Date: Jan 2007 Location: Brisbane
Posts: 9,767
| Re: AS4970 Draft| Australian Development Tree Protection
From the center of the trunk. So if you are measuring to the trunk always remember to adjust if need be. 
__________________ TAS Training & Assessment Services| Arb and Hort Training available here Free Online Tree Value Calculator by TreeWorld Free Online TPZ and SRZ AS4970-2009 Calculator by TreeWorld Free Online Tree Surface Area and Tree Volume Calculator by TreeWorld  Free Tree and Green Industry Deep Link Directory ... Yes, I also SEO (Optimize) and build websites that fly high in Google Qualified Brisbane Tree Lopping | Stump Grinding Brisbane Brisbane - Gold Coast Consulting Arborist, Tree and Arborist Reports | Project Arborist  |
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1st November 2009, 08:05 PM
| #63 |
| PDF King & Arborist Extrodinaire Join Date: Feb 2007 Location: Townsville Nth Queensland & Gold Coast Sth Queensland
Posts: 2,155
| Re: AS4970 Draft| Australian Development Tree Protection  
__________________ Sean Trees are poems that earth writes upon the sky, We fell them down and turn them into paper, That we may record our emptiness. - Kahlil Gibran http://wanderingarborist.blogspot.com/ http://veterantreegroup.blogspot.com/ http://www.youtube.com/user/VeteranTreeGroup |
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1st November 2009, 08:19 PM
| #64 |
| Semi-mature vigorous tree  Join Date: Feb 2008 Location: Australia
Posts: 196
| Re: AS4970 Draft| Australian Development Tree Protection
Sorry thats what i ment honest  SRZ is calculated as diameter?
__________________ "Just cause i don't use it, don't make it wrong!" |
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1st November 2009, 08:20 PM
| #65 |
| PDF King & Arborist Extrodinaire Join Date: Feb 2007 Location: Townsville Nth Queensland & Gold Coast Sth Queensland
Posts: 2,155
| Re: AS4970 Draft| Australian Development Tree Protection
No as radius, my diagram is showing DBH and TPZ not SRZ
__________________ Sean Trees are poems that earth writes upon the sky, We fell them down and turn them into paper, That we may record our emptiness. - Kahlil Gibran http://wanderingarborist.blogspot.com/ http://veterantreegroup.blogspot.com/ http://www.youtube.com/user/VeteranTreeGroup |
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1st November 2009, 08:23 PM
| #66 |
| Semi-mature vigorous tree Join Date: Feb 2008 Location: Australia
Posts: 196
| Re: AS4970 Draft| Australian Development Tree Protection
Ok both radius, i swear i saw one was diameter and one was radius. I'll post the bit that confused me tomorrow. And we can have a laugh Thanks
__________________ "Just cause i don't use it, don't make it wrong!" |
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2nd November 2009, 08:37 AM
| #67 |
| Semi-mature vigorous tree Join Date: Feb 2008 Location: Australia
Posts: 196
| Re: AS4970 Draft| Australian Development Tree Protection
not sure what i was thinking you were right, of course
__________________ "Just cause i don't use it, don't make it wrong!" |
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3rd November 2009, 05:58 PM
| #68 |
| Admin - Dip Arb & Hort & Seldom Wrong Join Date: Jan 2007 Location: Brisbane
Posts: 9,767
| Re: AS4970 Draft| Australian Development Tree Protection
I made some lines on this graph to assist but have discovered it is way wrong. Refer to this thread. I also have built an online calculator for this equation. TPZ| SRZ| AS4970-2009 Online Calculator 
__________________ TAS Training & Assessment Services| Arb and Hort Training available here Free Online Tree Value Calculator by TreeWorld Free Online TPZ and SRZ AS4970-2009 Calculator by TreeWorld Free Online Tree Surface Area and Tree Volume Calculator by TreeWorld Free Tree and Green Industry Deep Link Directory ... Yes, I also SEO (Optimize) and build websites that fly high in Google Qualified Brisbane Tree Lopping | Stump Grinding Brisbane Brisbane - Gold Coast Consulting Arborist, Tree and Arborist Reports | Project Arborist |
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