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Re: Kelheim Forest, Germany

Bob, Kouta will give a more complete answere, but without researching the literature on this (to timeconsuming for me for this moment) I think there is not only a north-south gradient but also a west-east. Within Europe I think the souheast is richest in species and the Cacasian region probably has ...
by Jeroen Philippona
Sun Jul 30, 2017 6:54 am
 
Forum: Germany
Topic: Kelheim Forest, Germany
Comments: 48
Views: 7599

Re: New tall trees in Europe

In the Netherlands Black Cherry was rather bad as an invasive species, but the last decades there are more and more insects living on / from the leafs. Also when a forest is more natural and less disturbed Black Cherry is not so competitive as in young, pioneer type of forests. Concerning Abies nord...
by Jeroen Philippona
Tue Jan 10, 2017 6:32 pm
 
Forum: Europe and the British Isles - Overviews
Topic: New tall trees in Europe
Comments: 11
Views: 596

Re: New tall trees in Europe

Bob, Indeed the Tulip tree performance in southern Europe is very good! Like in the USA it grows taller in regions wih warm, sunny summers and milder winters. See this map: http://www.monumentaltrees.com/en/map/world-tuliptree/ . In the menu at left on the map you have to change to 'heights (exact m...
by Jeroen Philippona
Sun Jan 08, 2017 9:51 am
 
Forum: Europe and the British Isles - Overviews
Topic: New tall trees in Europe
Comments: 11
Views: 596

New tall trees in Europe

Recently some very tall broadleaf trees were reported from a few parks near Pau, a town in southwestern France at a French treewebsite. Most spectacular were a hybrid plane tree (Platanus x hispanica = hybrid between American sycamore (Pl. occidentalis) and oriental plane tree (Pl. orientalis) repor...
by Jeroen Philippona
Fri Jan 06, 2017 5:46 pm
 
Forum: Europe and the British Isles - Overviews
Topic: New tall trees in Europe
Comments: 11
Views: 596

Re: one last visit to the great oak

I suppose this white oak will not die another 300 years. From historic documents it seems to be 500 - 600 years old. It could be that it is dying sooner than necessary because of pressure on the roots. I include a recent article on the age of oaks in Europe (Quercus robur and Q. petraea). From 10 bi...
by Jeroen Philippona
Sun Aug 07, 2016 6:46 am
 
Forum: New Jersey
Topic: one last visit to the great oak
Comments: 10
Views: 1491

Re: Douglas-fir trees in Scotland?

The record heights in the UK for Douglas Fir have been confirmed with laser using Sine method as well as with climbing with direct tape drop and are reliable. Indeed the Website of Tree Register of the British Isles gives not a lot of attention to the method of height measuring, but their most impor...
by Jeroen Philippona
Wed Jul 13, 2016 5:06 pm
 
Forum: Great Britain
Topic: Douglas-fir trees in Scotland?
Comments: 5
Views: 1196

Re: Darby and Sandusky Plains Bur Oak Project

Matt, Thanks for the information, precipitation is a bit more than I expected. Climate in Ohio is probably rather comparable with Ukraine or southern parts of Russia, although there rainfall in large areas is less. In NW Europe summers are cooler and winters less cold. I have seen very few Bur Oaks ...
by Jeroen Philippona
Mon May 09, 2016 4:11 pm
 
Forum: Ohio
Topic: Darby and Sandusky Plains Bur Oak Project
Comments: 32
Views: 2701

Re: Darby and Sandusky Plains Bur Oak Project

Hi Matt, Nice finds of Bur Oaks! Could you tell something about rainfall in the growth season as well as the temperatures of winter (if possible in centigrade / Celsius). It seems to me that the size limits are due to low rainfall, hot dry summers as well as cold winters. Open grown Quercus robur in...
by Jeroen Philippona
Sun May 08, 2016 7:13 am
 
Forum: Ohio
Topic: Darby and Sandusky Plains Bur Oak Project
Comments: 32
Views: 2701

Re: Biaowieza logging

Indeed there are no firs in Bialowieza, they mean spruces of course.
by Jeroen Philippona
Sun Apr 03, 2016 7:02 am
 
Forum: Poland
Topic: Biaowieza logging
Comments: 7
Views: 1419

Re: Biaowieza logging

Kouta, "Europe’s tallest trees" is no bull- or bisonshit when looking for the tallest known specimen of still 4 species (among wich Quercus robur, Populus tremula and Betula pendula) and second to third location for 4 or 5 other species among wich Pinus sylvestris. So for native trees it i...
by Jeroen Philippona
Sat Apr 02, 2016 7:11 am
 
Forum: Poland
Topic: Biaowieza logging
Comments: 7
Views: 1419
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