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New source of global nitrogen
April 14 , 2018
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- According to recently published study, over quarter of nitrogen on Earth comes from weathering of planet’s bedrock.
- For centuries, the prevailing science indicated that all of nitrogen on Earth available to plants comes from atmosphere.
- The study has found that up to 26 per cent of the nitrogen in natural ecosystems is sourced from rocks, with the remaining fraction from the atmosphere.
- The discovery could greatly improve climate change projections.
- This study shows that nitrogen weathering is globally significant source of nutrition to soils and ecosystems worldwide.
- Rock-derived nitrogen may fuel growth of forests and grasslands, and allow them to sequester more CO2 than previously thought.
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