200year old cedar in Dorset..

[Paul Barton]

I wonder if the tree was subject to a TPO or in a Conservation Area? Perhaps a TPO was unlikely if the tree was assumed to be under good management.

 

Either way, I can't find an app or notification on East Dorset's website.

[sloth]

I wonder if the tree was subject to a TPO or in a Conservation Area? Perhaps a TPO was unlikely if the tree was assumed to be under good management.

 

Either way, I can't find an app or notification on East Dorset's website.

 

I couldn't find it either, although the reports mentioned in Barrells video are in the public domain as he says it is a CA. If anyone happens to find a direct link to the relevant page on the Dorset website, please post it here

[kev7937]

Once again, I can't find the NT's 'published' document about this tree felling. The only thing I can find is their facebook page announcing the work:

 

Ha. Nice comment, bet they love you..

[Paul Barton]

Can't find a notification (yet) but here's the conservation area appraisal which specifically mentions the tree at the bottom of page 5! http://www.dorsetforyou.com/media/pdf/d/s/SPG09_Pamphill_Conservation_Area.pdf

[Amelanchier]

A tomograph reputedly from a 3rd December BBC Dorset report on the Cedar

 

Doesn't mention the height of the test or type/extent of decay.

 

BBC News - Duke of Wellington's Kingston Lacy tree to be felled

 

.

 

The tree had been tested by myself last year with the Picus tomograph and was shown to have significant decay present due to colonisation by Phaeolus.

This year both Mick Boddy and myself spent most of a day testing with the Tomograph and two resistographs just to be sure of the accuracy of our results.

We tested at several heights and found extensive levels of advanced tissue degradation.

 

Just a neutral observation from someone who's not getting on either bandwagon...

 

I'm always cautious of PICUS images that are generated based on a perfectly circular cross section. The whole premise behind the ability of the system to differentiate between varying wood composition is that the software knows the exact distance between the sensors (so as to be able to accurately calculate and compare the signal velocities). As the apparent level of 'decay' of the wood is determined relative to the range of velocities recorded for that individual sample, any inaccuracy in those measurements has the potential to change the threshold that 'decay' is defined at. So even if the cross section is slightly elliptical then the measurement of the attenuation caused by a defect can be inaccurate. False positives or false negatives become more and more likely the further the shape deviates from your model.

 

The only way to determine if the cross section is circular enough to use the circular model is to take a number of axis measurements. Of course, if you are taking axis measurements then you might as well be drawing the real shape (realer?) of the tree anyway...

[Paul Melarange]

It is circumstances such as this where a 'static load test' aka 'tree pulling test' is likely to have enabled a more objective management decision to be made. Although the tests are expensive, the cost is certainly justifiable when dealing with heritage trees of such high cultural and historical value.

 

http://thinktrees.co.uk/portfolio/tree-stability-testing/

[fagus]

TPOs are not usually made on trees that are either owned by the council itself, by another council or tier of local government, or by organisations regarded by the local planning authority as responsible tree managers - the National Trust for example. !?

[David Humphries]

It is circumstances such as this where a 'static load test' aka 'tree pulling test' is likely to have enabled a more objective management decision to be made. Although the tests are expensive, the cost is certainly justifiable when dealing with heritage trees of such high cultural and historical value.

 

http://thinktrees.co.uk/portfolio/tree-stability-testing/

 

 

Hi Paul

 

totaly agree with you here regarding the use of a static load test & feel that the expense in cases like these are completely justifiable as a large percentage of the very people who fund the trust go to the properties to enjoy the trees as much as houses.

 

 

.

[Amelanchier]

Either way, I can't find an app or notification on East Dorset's website.

 

I couldn't find it either... If anyone happens to find a direct link to the relevant page on the Dorset website, please post it here

 

There's no requirement to keep a statutory record of trees felled under exemptions...

[Amelanchier]

It is circumstances such as this where a 'static load test' aka 'tree pulling test' is likely to have enabled a more objective management decision to be made.

 

How so?