Cryptobiotic Soil,Canyonlands,Utah. Biological soil crusts are important components of desert ecosystems. They are a mix of organisms and their metabolic by-products,including cyanobacteria,bacteria,liverworts,green and brown algaes,lichens and fungi. They help plants by stabilizing sand and dirt,preventing erosion,retaining water,and fixing atmospheric nitrogen | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Degginger, Phil |
Taille de l’image : | 4992 px × 3328 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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