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Whats Loam? is it t...
 

[Closed] Whats Loam? is it the same as soil or dirt?

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[#6458268]

Just interested, only seems to be used in bike circles, is it another imported american word, where we already have something that we should be using, or is it a very specific type of soil?

How do I know if I'm riding loam, or soil, or dirt? What tyres should I use for loam? How much travel is required for loam?


 
Posted : 03/09/2014 3:18 pm
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Brown Pow


 
Posted : 03/09/2014 3:19 pm
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http://en.wikipedia.org/wiki/Loam


 
Posted : 03/09/2014 3:20 pm
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loam

noun
a fertile soil of clay and sand containing humus.

GEOLOGY
a soil with roughly equal proportions of sand, silt, and clay.
a paste of clay and water with sand, chopped straw, etc., used in making bricks and plastering walls.

Doesn't paint the picture of loam I have in my head..


 
Posted : 03/09/2014 3:20 pm
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Thanks all, just read the wiki article, there are several types of loam:-

[b]sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam.[/b]

I'm going to need a different bike for each of those arent I?


 
Posted : 03/09/2014 3:22 pm
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I've always thought it was soft muck almost a mulch but drier and a mixture of muck and rotting leaves, vegetation, that kind of stuff.


 
Posted : 03/09/2014 3:22 pm
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... a fertile soil of clay and sand containing humus.

does it taste of chickpeas?


 
Posted : 03/09/2014 3:23 pm
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daveagiles - Member
Brown Pow

Prime conditions indeed


 
Posted : 03/09/2014 3:24 pm
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Loam is a type of soil, as in chalky, clay, sandy and loam.

Gardeners love it because it's a jack of all trades with no real weaknesses. it's easy to work, drains well yet still manages to hold onto moisture and also it's nutrients.

edit: from the RHS [i][url= https://www.rhs.org.uk/advice/profile?pid=179 ]Loams are comprised of a mixture of clay, sand and silt that avoid the extremes of clay or sandy soils and are fertile, well-drained and easily worked. They can be clay-loam or sandy-loam depending on their predominant composition and cultivation characteristics[/url][/i]


 
Posted : 03/09/2014 3:25 pm
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I'm going to need a different bike for each of those arent I?

Just tyres...


 
Posted : 03/09/2014 3:25 pm
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The ultimate guide to UK tyre selection...

[url= http://mapapps2.bgs.ac.uk/ukso/home.html?layer=NSRISoilscapes ]UK Soil Type Mapping[/url]

Now, what tyres for 'slowly permeable seasonally wet slightly acid but base-rich loamy and clayey soils'? (actually I know the answer, and they're 4" wide ๐Ÿ˜€ )


 
Posted : 03/09/2014 4:27 pm
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loam only works in slowmo on your gopro


 
Posted : 03/09/2014 4:30 pm
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Thanks for the link!
I have
"Slightly acid loamy and clayey soils with impeded drainage"
aka
Mud.


 
Posted : 03/09/2014 4:30 pm
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Kimbers, not entirely true there, if I may correct you.

Suspended from wires OR if on board a drone, otherwise it has little GNAAAR,


 
Posted : 03/09/2014 4:32 pm
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I'm going to need a different bike for each of those arent I?

Just tyres...

Not quite - it's different wheelsize. 650B makes the loam come alive.

Sorry kittens...


 
Posted : 03/09/2014 4:35 pm
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hmm is that a post Sept 18th map of UK soil types?


 
Posted : 03/09/2014 6:10 pm
 tang
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Hero dirt.


 
Posted : 03/09/2014 6:11 pm
 joat
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It's grippy but not sticky,
Loose but not sloppy,
Soft but not sucky.


 
Posted : 03/09/2014 7:03 pm
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Loam is lovely. Best if slightly damp if it's been very dry just to firm it up a little for grip, but still loose enough to drift.

To be found on real trails, not trail centre hard pack ๐Ÿ˜›

Perfect soil for ferns to take over if not ridden enough though.


 
Posted : 03/09/2014 7:45 pm
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It's an ideal farming soil with 40% sand, 40% silt and 20% clay. Sand aids drainage, silt holds moisture accessibly for roots and clay forms bonds with nutrient/minerals aiding fertility. Sandy loam slightly more sand, silty....you get the gist.
In MTB terms it's a soil that drains quite well and doesn't dry up and fall apart like sand. Forms under mixed/decided woodland.
Dull eh. I prefer a peaty stagnogley myself


 
Posted : 03/09/2014 7:46 pm
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forms bonds with nutrient/minerals aiding fertility.
. Cation exchange...?

I always like a good podsol myself or a chernozem...


 
Posted : 03/09/2014 7:49 pm
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Dan always describes it as looking like "used coffee grounds"


 
Posted : 03/09/2014 8:31 pm
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cation exchange

Gouy double layer


 
Posted : 03/09/2014 8:51 pm
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Old tioga dh tyres are good for loam! It's the only type of surface they are not complete crap


 
Posted : 03/09/2014 9:26 pm
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Chalky loam round our way, it can be lethal in the wet ๐Ÿ˜†


 
Posted : 03/09/2014 9:44 pm
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"Brown Pow" indeed. Had those conditions on a day out with mates pushing up at Hopton many years ago. Apparently I had a far away look in my eyes and was heard to use words like "dreamy" when describing it.

mmmmmmmmmm loam


 
Posted : 03/09/2014 10:34 pm