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Corn better used as food than biofuel, study finds
A harvester in a corn field, subject of research at NSF's Intensively Managed Landscapes CZO site.
Credit: Praveen Kumar
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NSF maintains a network of nine Critical Zone Observatories (CZOs) across the country.
Credit: U.S. CZO National Office
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Where rock meets life: Researchers at NSF's Critical Zone Observatories study Earth's surface.
Credit: NSF
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Scientists affiliated with NSF's Intensively Managed Landscapes CZO track land-use changes.
Credit: Praveen Kumar
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A planter used for agriculture in an intensively managed landscape.
Credit: Praveen Kumar
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Farm fields in the Midwest often have tile drains under them; the drains are nutrient conduits.
Credit: Praveen Kumar
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