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How to determine the age of a tree WITHOUT cutting it down



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do you have a tree on your property that

you're interested to know how old it is

but you don't want to cut it down to

count the Rings well there's an easier

way to do it to give you a decent

estimate on how old the tree is without

having to damage it at all

now this particular tree is a white oak

tree now it's only about 30 inches wide

at breast height and that may not be

super impressive to folks that live out

in the Pacific Northwest or other places

where trees tend to get a lot bigger but

that's a pretty decent sized oak tree

now oak trees or white oak trees at

least tend to have a fairly slow growth

rate so that makes this tree fairly

impressive so today I'm going to show

you all how to get a decent estimate of

how old this tree is just by just a

little bit of simple math so as we know

every plant is affected by its

environment this particular tree is

situated in an area that's about a

hundred yards or less from a creek

bottom so it's got a pretty good amount

of water to live off of it's also

planted and very rich dark loamy soil so

it's got a good nutrient base to deal

with there is some competition for

sunlight there's quite a few trees

around it it's not a super dense area of

the forest but it is there is a little

bit of competition for sunlight on the

other hand it's very tall so it's up

there in the canopy where it's getting a

good good healthy amount of sunlight now

but there's no telling exactly how much

competition it had previous to this so

taking all those factors into

consideration we always have to assume

this method is just a rough estimate of

how old the tree is so you want to start

first by measuring the diameter of the

tree now just taking a yardstick or a

tape measure and stretching it across

like this to try to figure out the

diameter of the tree is going to be

really really inaccurate so what you

want to do is you're going to take your

tape and you want to try to find the

spot on the tree that you can mount this

to without damaging the tree and wrap

this tape around the tree this tree is

very convenient cuz it's got a very

small vine going up it so we're going to

use that vine to put this tape on too so

here's our vine right here what you want

to do is you want to take your tape and

flip it upside down because if you try

to bend your tape back this way it's

gonna be stiff and it's just not going

to do a very good job so take your tape

flip it over now I realize not every

tree is going to have a vine on it

but you know try to do the best you can

with what you've got now another note

you're going to want to try to measure

from an area that's about chest height

on the tree somewhere between four and a

half and five feet will be just fine

so anyway go ahead and stretch your tape

out wrap it all the way around your tree

try to pull it kind of tight to get all

the all the slack out of it so you get a

more accurate measurement and check what

you've got so that gives us about ninety

nine I don't think I'm high enough on

the tree though so we're gonna go a

little bit higher and see what that

gives us so again you're going to want

to find the circumference of the tree

first and after that you can find your

diameter so you're going to want to

start at a point that's about five feet

high so we're going to measure up sixty

inches it's going to put us about right

here let's go ahead and wrap this tape

around the tree it's best if you get

somebody else to help you with this so

they can hold the tape in the I don't

rely on little vines like this

you just got to do what you can with

what you got

so our tape is wrapped around the tree a

little bit again

and that's going to give us 96 inches so

once you figure out their circumference

of the tree you can figure out the

diameter so the circumference if we're

going to keep it on the conservative

number is going to be 96 inches so you

take 96 and divide that number by pi

which is going to be 3.14 once you do

that you get thirty point five so now

that you have the diameter of the tree

you can figure out the relative you can

estimate the age of it now every tree or

most trees they even figured out has

what you call a growth factor the growth

factor for white oak is five some trees

are higher some are lower the trees with

higher growth factors grow slower while

the trees with the lower growth factors

grow faster so white oak is five if you

take that number thirty point five and

multiply that by five you come up with

152 so this tree is estimated to be

about one hundred and fifty-two years

old now I would say that's probably

reasonably accurate given the health of

this tree and the area that this tree is

in seeing as how it's got a lot of good

watering and a lot of good nutrients to

deal with so I would say that's probably

a reasonably accurate so that puts this

tree as at being planted in about

eighteen sixty six so that's pretty cool

to me to figure to see that this trees

was planted in 1866 and it's been

through all of these years and it's in

such great shape now but I hope that

that video helps somebody I really

enjoyed doing this with some of my trees

just to figure out how old they are but

if you have any questions leave me a

comment and make sure to LIKE this video

if you haven't already and and that's

all I've got I will see y'all next time