Differences between an Old Growth Forest and a Secondgrowth Forest
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- เผยแพร่เมื่อ 13 ต.ค. 2024
- Stumbled across this incredible visual demonstration of the difference between a healthy, mature old growth forest ecosystem and a secondgrowth crop forest, and had to share!
In the old growth forest, we can see all sorts of complexity within the ecosystem - a multi layered canopy made of different tree species at different ages, rich vegetation on the forest floor, diverse understory, standing dead trees, dead wood on the forest floor, and varying pit and mound topography! All of this complexity helps contribute to a robust hydrological regime that regulates and purifies water as it makes its way through the ecosystem, while also providing home and habitat to all sorts of plants and critters to create a rich medley of biodiversity here.
Yet in the secondgrowth crop forest, we can immediately sense that things are different here. All that complexity is replaced with a simplified single-age stand with a single layered canopy that allows little light to filter through, greatly reducing the biodiversity in the area. This in turn effects the hydrological function of these forests that erodes soils faster leading to siltation of rivers and landslides, and dries out easier in the summer while also creating ladder fuels that contributes to high intensity wildfires.
…pretty spooky huh? Secondgrowth forests like these are reminiscent of those scary forests with witches and goblins that you’d imagine in many fairy tales, which were based on many European forests that began to develop like this as those western societies consumed more wood more rapidly.
Pretty neat little observation demonstrating just how incredibly cool, complex and amazing a healthy forest ecosystem really is! Let’s have more of this, yeah?
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Produced & Directed by Ross Reid
~ I'd like to acknowledge that this video was filmed on the traditional, ancestral and unceded territory of the Coast Salish peoples-Sḵwx̱wú7mesh, Stó:lō and Səl̓ílwətaʔ/Selilwitulh and xʷməθkʷəy̓əm Nations. ~
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dude I have no idea why this passion project isn't bigger
Haha, me neither! Feel free to share it around to everyone you know to help it grow!
Thank you for breaking this down!
Of course!
We in Victoria Australia, have just STOPPED logging old growth forests.
Wonderful day in Australia 🇦🇺
So awesome!
Just saw that they’re calling off a bunch of logging in NSW to protect the koalas.. finally
👍Nice someone talks about it. Most people dont see the difference.
I know, trying to get more folks to pay attention!
This is fantastic. Thank you.
Of course!
Your comment “Witches love ‘em.” (re: new growth forests) made me laugh. I just subscribed. I love nature.
You're doing amazing work! Awesome video as always!!
Great video very informative!
How many homes, furniture, business and all manor of infustructor were built out of the old growth . All forest nerds thinned to promote healthy growth
Haha, nicely done. Wood is an incredible resource - it's not about not logging, it's about doing it better!
Thank you for the great information !
How do you help a second growth forest recover?
It needs to be thinned out after planting, just like you would do your garden, but on a bigger scale. 😊
Agreed, there are many things we can do, and ecological thinning to create complexity in these forests is a major part of that
Id like to help my forest be healthier.. its a very small stretch of very dense yong forest that grew from an old sand quarry.
It looks like the trees are way too dense and tall and skinny.. is it a good bet to cut down the small ones that have no room to grow?
Some patches are so dense and dark that nothing else grows..
Yeah it would be good to thin it out a bit. Try to identify what kinds and take down any that are invasive. You want to prioritize keeping tall strong native trees
Thin it out. Healthy growth requires room.
What animals are found in second growth forests?
killin it
🙏
Old growth forests all the way!
Yewww!
He's probably at Laurel Hill State Park.
Nope, not sure where that is!
Well start cutting...😊
No. This old forest will be protected.
Why don’t we just plant the trees a bit farther apart. And maybe try to replicate the old growth forests? We could start by only logging about half the trees in these forests, that way we get some lumber, and we create more gaps in the canopy
The problem with that is that logging companies look for is exactly the same as what helps a healthy forest thrive
That is likely natural regeneration which is more prevalent the farther up the PNW coast you go. What he says about biodiversity is only partly true, there have been lots of studies documenting the biodiversity and how it changes with each age class of tree, site specific of course.
Why would a witch love a second growth forest? It seems like there would be more herbs and mushrooms in the old growth forest
Haha, true, I was using that more as a figure of speech! Think Grimm Brothers fairy tales, all those forests are dark and scary because they aren't natural forests...
May I say, as a witch, I prefer the old growth forest. 😊
Sihr scares me so much. I used to be into the craft. Never again. Not after what happened that one dark night. 😅
Unfortunately, we’re I’m from Puerto Rico 85% of all the old growth, forest cut down,
A young forest is important for biodiversity as well. After a clearcut, biodiversity is obviously very low. But after about 5 years, sapling trees and shrubs like raspberries move in, and the biodiversity raises significantly. A variety of wildlife feeds on the berries and buds of this new growth and lives in the slash left behind after a harvest. After about 20 years, the forest has grown to what is called the stem exclusion phase, which is what he shows in the video. This has very little biodiversity because the trees are not yet old enough to produce much mast, the buds are not reachable to most species, the woody debris on ground has broken down, etc. After a few decades the forest reaches a mature stage and the biodiversity rises again. The way to have the maximum biodiversity is to have a forest with a variety of age groups of trees. This is why periodic patch cuts are highly beneficial when considering biodiversity.
there is no variety of ages of trees when a clear cut is replanted. they are all the same size and age, and also species (so much for biodiversity)
old growth biodiversity is something that took centuries to build. a replanted clear cut after a few decades will never even remotely compare to what nature herself created over centuries. clear cuts are not beneficial to our earth
"after about five years...biodiversity raises significantly"
well yea, it went from clearcut nothing to something, of course the rate of increase in species present appears positive. but compare the biodiversity of the newly planted forest to the one that was there before the clearcut, and id bet money the new forest is less biodiverse
😂😂😂 give the second growth forest 1000 years and it will be an old growth forest.
Without intervention, no they won't.
Give the second-growth forest a couple decades and it’ll shape up nicely. Then you have ANOTHER old growth forest. Or, at least a better second growth forest.
For sure, it gets better in time...but even given it a century and it still would only barely replicate old growth characteristics present in a mature forest thats developed over thousands of years
@@NerdyAboutNature that’s where phase 2 comes in! EVEN MORE TIME! I can’t wait to wait for another hundred years.