November
2005
English Nature
Research Report
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In this Research Report, English Nature has published a protocol for
assessing sites on the basis of their veteran tree populations.
The primary criteria that are used are based on numbers of veteran trees,
numbers of ancient trees and numbers of trees greater than 1.5m dbh on a
site.
Primary
Assessment
Criteria |
High Value |
Medium
Value |
Low
Value |
| Number of ancient trees |
> 15 |
1 - 15 |
0 |
| Number of veteran trees |
> 100 |
10 - 100 |
< 10 |
|
Number of trees >
1.5m dbh |
> 15 |
5 - 15 |
< 5 |
There are also a series of secondary criteria that can be used to
distinguish between sites that ranked similarly on primary criteria.
The authors of the report conclude that these criteria should be useful in
local and national comparisons of the value of different veteran tree sites.
This report can be downloaded from
This report
can be down loaded from www.english-nature.gov.uk
By comparison a site with >50 veteran trees in Sweden would be proposed for
National Nature Reserve /Natura 2000 site status. |
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