• Post Reply Bookmark Topic Watch Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources cider press projects digital market permies.com pie forums private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • Pearl Sutton
  • r ranson
  • paul wheaton
stewards:
  • Leigh Tate
  • jordan barton
  • Greg Martin
master gardeners:
  • Carla Burke
  • John F Dean
  • Jay Angler
  • Nancy Reading
gardeners:
  • Beau Davidson
  • thomas rubino
  • L. Johnson

how hot does it have to get to kill a douglas fir tree

 
master steward
Posts: 41262
Location: missoula, montana (zone 4)
hugelkultur trees chicken wofati bee woodworking
  • Likes 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Just some discussion around the dinner table.

It was very hot last week.  And a few weeks ago.  We started talking about "what if it gets even hotter next year?  And then even hotter the year after that?"  which led to discussion of how hot does it get to kinda kill nearly all life in an area.  Then the discussion led to a douglas fir tree - at what temperature does a douglas fir tree die?

I was guessing that if the temps got up to 130 then all the trees would probably die.  
 
steward
Posts: 3078
Location: Maine, zone 5
1646
4
forest garden trees food preservation solar wood heat homestead
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You guys have a lot of conversations that run like the thoughts in my head!  From what I can find 140F kills plants for sure, below that it's not clear.  Sustained high temperatures below 140 kills trees too, but not sure what that curve looks like.  I hope we don't find out, but I'm very worried about it too.
 
steward & author
Posts: 28269
Location: Left Coast Canada
9341
5
books chicken cooking fiber arts sheep writing
  • Likes 4
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
DF stores a lot of water.  They also create their own microclimates in their monoculture.  The forest here wasn't as hot as the air around it.  I imagine how dry they are will affect the temperature needed to kill.

One tree alone probably will suffer from the heatwave.

the trees on the edge of the woodlot aren't doing awesome a month later.  But they could still recover.  DF tend to drop extra branches when it feels stressed.  
 
You are HERE! The other map is obviously wrong. Better confirm with this tiny ad:
The Garden Master Course - Full Video - Kickstarter
https://permies.com/t/190216/Garden-Master-Full-Video-Kickstarter
    Bookmark Topic Watch Topic
  • New Topic