There is also an excellent video series called "Nature of Earth: An Introduction to Geology " by John Renton One of the videos deals with soils. (There is a book too.)

This is so weirdly specific and I love it

No me too I’ve been wanting to find an interesting and informative video about soil for reasons like how does it affect agriculture and plants and where even do you see specific soils more often

Everytime you have a thought like that, look it up. I do often. You'll be surprised how many subject matters and topics are featured on KZfaq.

kzfaq.info/sun/PLs7Y2nGwfz4HPoRAaB64c-MdF1kK-P-Wy

1 comment btw

It's the music.

Drums. Making you anticipate something.

RIGHT

its definitely the music

You and me both, that’s why I made this video

Don't look at her.. Love is temporary, soil is forever!

Uh what?

Try men. they’re fun

Women...the best and worst thing to ever happen to men.

Gunjα Fury No way, i think it's stupid, it's annoying me

The way it was integrated with the talking was nice too. When it got a little quieter as he transitioned to gelisols with low activity due to permafrost. When it got louder and more industrial-sounding as he moved into the iron-rich ultisol. Just, *_MMM_*

horrible

This is exciting, even without the drums

It is actually exiting as this is were 99% of food is grown.

Me: because fertility is usually term for agriculture, trees have better root-fungi system to reach nutrients Her: ... doesn't exist

This is also a thing for rainforests. The crux of the matter is basically that you can think of rainforests and their soil as a high-turnover, low-storage engine. What this means is that at any given moment there is a *lot* of organic matter and nutrients moving about, from plants and animals dying and new plants growing and transfering these nutrients to animals through herbivory and throughout the food chain. There is however very little nutritious content actually stored in the soil, because as soon as it gets stored someone ends up using it. Incidentally this is also why rainforest soil is so shitty for agriculture and why the predatory agricultural practices in my country (Brazil) are so maddeningly insane it makes me want to gouge my eyes out. Essentially large landowners cut down rainforest, plant a few years of high-intensity harvests of crops such as soybeans until the soil is drained, then replace it with pastures for cattle and repeat the cycle moving a little bit north into the Amazon rainforest.

Pine trees are also exerting selective pressure by acidifying the soil. Relatively few other canopy trees like acidic, sandy soils, and most of them (magnolias, redbay before Chinese shipping [ambrosia beetles from pallet wood] wiped them out, some evergreen oaks) are less tolerant of fire and are thus limited to flood plains and low lying "bays" (not the saltwater type, but rather pockets of moist laurel forest where bays/laurels and magnolias dominate the forest) or to human landscapes. Palmetto and ericaceous shrubs are no threat to the pines, but tall broadleaf trees will shade them out. All those acid/sandy plants are adapted to there particular niche (via myccorhizhae etc), but few non-native crop plants (mostly domesticated on richer soil in Eurasia) thrive. The Deep Southeastern USA is dominated by pine forests on spodusols (the sandy oils are also due to geologically recent Marine origin--those iron-bearing Red Georgia Clays [I've forgotten the technical name he gave those] he claimed dominated the Southeastern US are more typical of the Piedmont (older, higher ground) than of the Coastal Plain, which is sandy except in wetlands (usually peaty anaerobic muck, so also acidic and nutrient poor--which is why carnivorous plants are so common in the FL panhandle) and riparian areas (where silt is likely and nutrients may have washed in from upstream). Spodusol is not limited to the Boreal Taiga as implied by the video but is associated with "pines" (true pines in the Southeastern USA, guessing fir/spruce/hemlock conifers in the Taiga). That said, soil origin is important. Douglas fir may be a conifer and might acidify the soil, but the soils of the maritime Northwestern USA have mineral fertility from their volcanic origin and a fair amount of clay.

@@erikjohnson9223 That was incredibly thorough and I thank you for that.

Another thing to consider is that water helps alot, they get plenty of water in those regions

DIRT BAG!

😂👍🏽biomantle sachel!--b.s.! oh the puns must go on!

They’re even more complex too when you learning about all the micro organisms and different parent materials and such that also influence a soil. Thanks for watching!

Wait till you hear about water towers

Unnecessarily complex especially the random naming conventions.

Everything is complex when you dig deeper.

@@eng.miroslavmanahilov1944 i see what you did there

You betcha!

They're so dirty.

You mean farmers???

@@unclephil4112 farmers really are soil nerds now that i think about it

They call themselves edaphologists!

"unearthing" heh

I see what you did there

I am digging all these soil puns.

I got so excited I wet my plants

Totally agree

How do you recreate hydroponics in nature? You don't.

Thank you! I figure the only way to actually learn something is to understand it, glad to see people appreciate the approach :)

It would be a good follow up to discuss why organic matter builds up in Steppe/Prairie ecosystems but not so much in annual agriculture (sans artificial addition like [green or animal] manuring) [shallow roots, much of the nutrition harvested and exported?] or forested habitats (faster decay and leaching due to higher rainfall). Also "Terro Preto" (black earth from adding charcoal + compost) to remediate spodosols and rainforest soil to have some nutrient holding capacity would be an interesting follow up as well.

Thank you, I’m glad to hear it! Are you a student or teacher?

Student from argentina :) rio gallegos santa cruz :))

That's awesome!

thanks! glad to have you :)

Darn! I made it as fast as I could :P Great to know someone else likes soil science :)

There is also an excellent video series called "Nature of Earth: An Introduction to Geology " by John Renton One of the videos deals with soils. (There is a book too.)