Drone cameras can measure pigments indicating surface health of dryland soils
Drylands soils are being degraded by human activities and climate change, threatening the thin living layers covering their surface, called biocrusts, according to the U.S. Geological Survey. Composed of cyanobacteria, lichens, mosses, algae, fungi and bacteria, biocrusts play...
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Watch whether this cleaner-energy idea becomes practical enough to spread.
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