(Arboricultural-styled) 'Fact of the Day'

[Kveldssanger]

Helps with mine, too.

[Gary Prentice]

Interesting! I imagine the book I read was talking about on average (I presume!).

 

I only posted because I thought it was an extraordinary period of time. An interest factoid.

[Kveldssanger]

No, it is a cool little fact - absolutely! Do you recall where you got the fact from?

[Gary Prentice]

The book about Peter (?) Silitoe's experiences in climbing the redwoods. One chapter mentioned him visiting Australia to climb some eucalypts. I can't find the book this evening, it's probably in my overflow bookcases at work, to fill in anymore detail.

[Kveldssanger]

That's on my to-buy list, since you mentioned it a few weeks back to me. So many books to buy, so little space...

[Kveldssanger]

27/10/15. Fact #65.

 

The width of a growth ring is dependant upon many factors - light duration (photoperiod), light intensity, temperature, moisture availability (and when the moisture is available), defoliation (by pests), disease, and so on. Where conditions are adverse for the particular species, growth will suffer. Where conditions are optimal, growth will be better.

 

One may observe how the timing of rainfall, for example, impacts upon ring width, by comparing individuals in areas where rainfall is mainly in winter, and where rainfall is more common throughout the growth period (spring - summer). Where there is more rainfall during the growth period, there is a high probability that the width of the growth ring will be greater. It is important to note however that where the weather is more erratic - particularly where there is more rainfall during the growth period - yearly change in weather patterns can cause massive variation in ring width, compared to variation in ring width in areas where rainfall is always infrequent during the growth period.

 

Where an entire annual ring is not laid down, it is known as a lens. A lens may be evident in individuals that have suffered drought conditions for extended periods - sometimes lenses may be almost non-existent, if drought conditions are that significant.

 

Source: Morey, P. (1973) How Trees Grow. UK: Edward Arnold.

Edited October 27, 2015 by Kveldssanger

[Gary Prentice]

The book about Peter (?) Silitoe's experiences in climbing the redwoods. One chapter mentioned him visiting Australia to climb some eucalypts. I can't find the book this evening, it's probably in my overflow bookcases at work, to fill in anymore detail.

 

Richard Preston's 'Wild Trees' about Steve Sillett:blushing: ISBN 978-1-8461-4023-5

 

The Eucalypts were reglans I think, but I can't find the actual page annoyingly.

[Kveldssanger]

No worries, on that front!

 

No post today from me - had a BS 3998 course earlier and had some stuff to sort out since getting back.

 

Any recommendations for facts? Got stuff on urban trees, pests / disease, phsyiology, woodland management, etc.

[sandspider]

You come up with some good facts, keep em coming!

 

Personally I'd like some on woodland management, tree planting...

[Kveldssanger]

I have lots of stuff on tree planting - got quite a few good books on the topic. Anything in particular? Same with woodland management. Are you looking for specific areas of the practice?