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Soil crust - Wikipedia, the free encyclopedia
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A clearing house for information about Biological Soil Crusts. ... Biological soil crusts are the community of organisms living at the surface of desert soils. Major components are cyanobacteria, green algae, microfungi, mosses, liverworts and lichens. ... Crust 101...
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The most inclusive term is probably biological soil crust, as this distinguishes them from physical crusts without limiting the crust components to plants. Whatever name used, there remains an important distinction between these formations and physical or chemical crusts.
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In soils that have not been see de d, the crust prevents further soil drying by sealing off the mu ddy un derlying soil from the air. The crust also reflects sunlight, causing cooler soil temperatures that also slow drying.
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Heavy rains on recently planted crop fields may create soil crusting that can affect the emergence of the crop. ... Residue cover plays a significant role in reducing soil crust by absorbing the impact of rain drops that destroy soil surface structure. The destruction of soil structure impacts plant germination and...
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When you hike through the scrubland or desert, look carefully at the land surface and its plant and animal life. There's a good chance you'll see cryptobiotic soil crust. It's easy to overlook, but it plays an important role in nature.
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In the above photo, cryptobiotic soil crust covers the ground between the shrubs and trees ... Biological soil crust is a living groundcover that forms the foundation of high desert plant life in Canyonlands and the surrounding area. This knobby, black crust is dominated by cyanobacteria, but also includes lichens,
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Cryptobiotic soil crust is a living groundcover that forms the foundation of high desert plant life throughout canyon country. This knobby, black crust is dominated by cyanobacteria, but also includes lichens, mosses, green algae, microfungi and bacteria.
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Correlates of biological soil crust abundance across a continuum of spatial scales: support for a hierarchical conceptual model; MATTHEW A. BOWKER*, JAYNE BELNAP*, DIANE W. DAVIDSON† and; HARLAND GOLDSTEIN‡;
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If so, you’ve just discovered the biological soil crust. It’s a complex mosaic of living organisms—algae, cyanobacteria (blue-green algae), bacteria, lichens, mosses, liverworts, and fungi—that grow on or just below the soil surface.
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