Tree re-generation after fire.

[Gumnuts]

It's mid spring here and recently did a block clearance / tidy up .
In one of the burn offs the wind shifted , the next thing I new a neighbours 3meter golden Hoki cypress caught fire.went up like a candle ,(out in 10 seconds)taking out all the foliage.They had been forewarned and as I was getting rid of their refuge ,with mine ,they were'nt put out.

My question is can it re-generate if only the outer cambium is blackened ?
Photosynthesis has been stuffed .Sap wood is fine.
Brings to mind the fires your having in the states at the moment and
the question of fire re-generation in trees in general.

I add my heartfelt regards to those individuals and families that are affected.

 

[John Paul Sanborn]

Sap wood is mostly dead tissue, if cambium is burned then that area is dead.

The cambium is the real living part of the tree next to leaves and root tips.

I'm not familiar with the species, but many Cupressus sp. regenerate basally.

 

[smokechase II]

cambium

If the cambium is truly gone. That portion of the stem above that spot is dead.

Two caveats:

Some trees are amazingly hardy and just a little cambium will be enough to allow the tree to continue.

Some trees and brush are "fire species" that regenerate from the roots extremely well. The witch fire in So Cal is burning in areas where the also incredible Cedar Fire did just four years ago. Many plants that comprise that Chaparral regenerate from a root mass that is established and they can be several feet tall and robust in just a few years.

I don't think this is the case with any Cypress, but thought I'd mention it for general reference, good of the order stuff.

 

[Gumnuts]

Thanks JPS.
If I rub my finger along the scorching ,its still green.Do you think taking
laterals off a third ,keep the water up ,worth a try ? Mid spring to late for new bud growth.

 

[treeseer]

don't remove any tissue that is not totally dead.

do you mean Hinoki?

What is "outer cambium"?

 

[M.D. Vaden]

So... golden hinoki cypress...

If the foliage is toast, odds are the buds are toast too.

You won't see regeneration sprouting from the bark like on maple or birch, etc..

Even if a few buds did survive, the tree would be ailing-along miserably for a decade.

It's not worth that much - start over with a 5' to 6' specimen.

 

[Gumnuts]

don't remove any tissue that is not totally dead.

do you mean Hinoki?
http://www.floridata.com/ref/C/cham_obt.cfm
What is "outer cambium"?

Hinoki - souNds good - an a softwood too.
On the outer side of the cambium a new layer of bark is formed continuously to protect the new tissue of the inner side against water loss and fungal invasion.
Latewood tracheids verses earlywood tracheids.
I don't have microsope - was simple hoping for experience/ the
wisdom of watching similar re-gens.
In Oz many exotics are used as rural hedgerows and suburban gardens. Our native eucalypts often surprise us , after fire ,with regen ability.
In the case of suburban hedge fires the trees or shrubs are usually scapped for ascetics.
Guess I'll have to see what happens next Spring or 084 it


ms200T , 025 , 034, 066 MagumN, 084av mod,084av in progress
20hp Kohler project - next year :bang:

 

[John Paul Sanborn]

On the outer side of the cambium a new layer of bark is formed continuously to protect the new tissue of the inner side against water loss and fungal invasion.

If I remember right, true cambium is meristem that divides to create (differentiate into) phloem on the outside and xylem on the inside (with phelogen in the bark on corky trees)

All this is just a few cells thick, so that if the scorch got through the bark, then it is down to the xylem.

WHat you are probably talking about is woundwood production in the injured areas, where the meristem was released to form fast growing , large celled woody tissue for wound closure.

 

[smokechase II]

fire risk

Just a thought.
Maybe the removal of this tree is for the best.

That is if you are in an area/setting where wild fire is a concern.

Take a hint from the way it burned.

You can control your fate many times with regard to the risks of wildfire by thinning and then especially by planting species that are not as volatile.

 

[Gumnuts]

Smokechase
Maybe the removal of this tree is for the best.

Thanks,fully agree but is in a safe area.Plus its not my tree.Was closer to 4meters high .Would like to doctor if i can.It's obviously had a shock.

M.D.Vaden
How do your evergreens regen after forest fire ?Though heat would be more prolonged and extreme.Wonder how St.Helena regen is going ?
- can of worms for Miss Google

John
WHat you are probably talking about is woundwood production in the injured areas, where the meristem was released to form fast growing
Good feedback thanks .Thinking....

Treeseer
don't remove any tissue that is not totally dead.

Would be good to try as a test .Liquid green nitrogen feed and
pruning.