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Richard Smith @rsmithsoil

Love land, water, nature, food. Mad guitarist. Views expressed are my own.

Joined December 2017
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Richard Smith@rsmithsoil
4 Dec 2020
To celebrate World Soils Day tomorrow, here are typical soils on the diverse geology in SW England. Clay-with-Flints Cretaceous Greensand Triassic Mudstone Chalk Permian Sandstone Permian Breccia Granite Peat Devonian Slate Carboniferous Shale Alluvium Pebble Bed
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Compacted soil that needs subsoiling…or leave? Fine grained sandy loam soils over Bridport Sands. An interesting field with wild bird seed mix. Abundant earthworms creating casts and burrows in the subsoil after 4 years. #soilrecovery. A pleasure to see @olblackburn
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Jethro Tull would be amazed. sciencedirect.com/science/ar…
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Interesting shallow line of bleached stones in this podzol in a road cutting at Studland Heath. I’m assuming that these are Pleistocene gravels laid down during the ice age? @Subsolum. An ancient soil profile?
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This soil profile looks almost natural! A wonderful archaeological dig at the site of a former abbey, Cerne Abbas.
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Here is another view. I was also amazed at the depth of soil.
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Shrinkage of clay creating soil structure. Pedogenesis.
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Intense heat on the chalkland soil this year. March vs July.
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Eroded soil exposing mole burrows. Now filling up with soil and detritus to form a Krotovina.
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Pleased with this photo of a stonechat. Not pin sharp though. Still learning how to use the camera.
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Cornwall night and day.
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Maxi till!
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Great day out with Plymouth Uni designing runoff experiments. Examples of soil structure in a field of wheat showing differences 20m apart. Compacted soil under perched water Slumped seedbed between rows without cover Seedbed under crop cover Ancient hedge bank. @PlymUni
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Modern art! Experimental image looking at what thermal imagery can tell us about the soil. Blue colour is maize harvest wheelings (and shaded areas behind trees). Field headland is deep ripped. Middle is stubble, and right is shallow tilled with wheelings grinning through.
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…and OSR field. Can see drill wheel marks and tramlines. Top half of the field is much warmer. Green colour is colder soil.
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Btw.. Here I use the decorators term “grinning” to describe when an under-surface shows through a painted surface. A colleague told me that term years ago and is perfect for describing deep soil compaction.
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Visual Evaluation of Soil Structure: - gently tease apart along lines of natural weakness to look for soil aggregate shape and size at different depths - gently crush aggregates between finger and thumb to assess friability and density #WorldSoilDay2024 #interpretsoil #vess
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Under the weather!
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Not seen waterlogged rendzinas on the chalk before!
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You can just about see the wheatear flitting across this grass reseed. Last time I saw a wheatear here was 6 Sept 2008 when last reseeded.
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