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Re: Agrononmists/Soil scientists


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Posted by Crazy Horse on December 28, 2020 at 10:10:18 from (108.173.201.233):

In Reply to: Agrononmists/Soil scientists posted by Shaler on December 27, 2020 at 20:23:11:

Chernozem (Russian word for true "black" soil).... only two significant bands of it in the world, some of the YT'ers live in this North American zone, maybe some YT'ers in Europe as well. Much of the soil around where I live is black soil. Of course in any soil "zone", there are always outcroppings of other soil types to be found. There are also some smaller Chernozem soil areas as well in Texas, Hungary, Poland, China and Australia.

The name comes from the Russian terms for black and soil, earth or land (chorny + zemlya). The soil, rich in organic matter presenting a black color, was first identified by Russian geologist Vasily Dokuchaev in 1883 in the tallgrass steppe or prairie of European Russia.

Chernozems cover about 230 million hectares of land. There are two "chernozem belts" in the world. One is the Eurasian steppe which extends from eastern Croatia (Slavonia), along the Danube (northern Serbia, northern Bulgaria (Danubian Plain), southern and eastern Romania (Wallachian Plain and Moldavian Plain), and Moldova), to northeast Ukraine across the Central Black Earth Region of Central Russia, southern Russia into Siberia. The other stretches from the Canadian Prairie provinces through to the Great Plains of the US as far south as Kansas. Similar soil types occur in Texas and Hungary. Chernozem layer thickness may vary widely, from several centimetres up to 1.5 metres (60 inches) in Ukraine, as well as the Red River Valley region in the Northern US and Canada (location of the prehistoric Lake Agassiz).


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