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On carbon sequestration in desert ecosystems

Authors:	WILLIAM H SCHLESINGER JAYNE BELNAP† GILES MARION‡

Institution:	Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA,;U.S. Geological Survey, Southwest Biological Science Center, 2290 S. West Resource Blvd., Moab, UT 84532, USA,;Desert Research Institute, Reno, NV 89512, USA

Abstract:	Recent reports of net ecosysytem production >100 gCm⁻² yr⁻¹ in deserts are incompatible with existing measurements of net primary production and carbon pools in deserts. The comparisions suggest that gas exchange measurements should be used with caution and better validation if they are expected to indicate the magnitude of carbon sink in these ecosysytems.

Keywords:	Carbon sequestration deserts net ecosystem production net primary production