| The evolution and future of Earth's nitrogen cycle. | |
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MedLine Citation:
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PMID: 20929768 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Atmospheric reactions and slow geological processes controlled Earth's earliest nitrogen cycle, and by ~2.7 billion years ago, a linked suite of microbial processes evolved to form the modern nitrogen cycle with robust natural feedbacks and controls. Over the past century, however, the development of new agricultural practices to satisfy a growing global demand for food has drastically disrupted the nitrogen cycle. This has led to extensive eutrophication of fresh waters and coastal zones as well as increased inventories of the potent greenhouse gas nitrous oxide (N(2)O). Microbial processes will ultimately restore balance to the nitrogen cycle, but the damage done by humans to the nitrogen economy of the planet will persist for decades, possibly centuries, if active intervention and careful management strategies are not initiated. |
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Authors:
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Donald E Canfield; Alexander N Glazer; Paul G Falkowski |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Review |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 330 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-10-08 Completed Date: 2010-11-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 192-6 Citation Subset: IM |
Affiliation:
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Institute of Biology and Nordic Center for Earth Evolution, University of Southern Denmark, Campusvej 55, Odense M, Denmark. dec@biology.sdu.dk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Archaea
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genetics,
metabolism* Atmosphere Bacteria / genetics, metabolism* Crops, Agricultural / growth & development, metabolism Ecological and Environmental Processes Eukaryota / genetics, metabolism* Evolution* Evolution, Planetary Forecasting Humans Nitrogen / chemistry*, metabolism* Nitrogen Compounds / chemistry, metabolism Oxidation-Reduction Physicochemical Processes |
| Chemical | |
Reg. No./Substance:
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0/Nitrogen Compounds; 7727-37-9/Nitrogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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