US EditionNitrogen loss on sandy shores: The big impact of tiny anoxic pockets
3 Articles
3 Articles
Nitrogen loss on sandy shores: The big impact of tiny anoxic pockets
Some microbes living on sand grains use up all the oxygen around them. Their neighbors, left without oxygen, make the best of it: They use nitrate in the surrounding water for denitrification -- a process hardly possible when oxygen is present. This denitrification in sandy sediments in well-oxygenated waters can substantially contribute to nitrogen loss in the oceans.
In the sea there are microorganisms that degrade nitrogen and thus reduce the man-made nitrogen load of the oceans. Now biologists have discovered that such microbes not only occur in the water, but also on sandy coasts. This makes possible neighbouring bacterial populations, which consume the complete oxygen on the sand grains. The thereby enabled denitrification in sandy sediments [...] The article Microbes on the beach also build nitrogen fro…
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