Topic: The Loess Deposited in Many Parts of the Midwest
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What parts of the US are covered in loess deposits? why is it eco...
The Loess Hills of Iowa owe their fertility to the prairie topsoils built by 10,000 years of post-glacial accumulation of organic-rich humus as a consequence of a persistent grassland biome. When the valuable A-horizon topsoil is eroded or ... Read More »
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