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    Author(s): Dean A. Martens; Jean E. T. McLain
    Date: 2005
    Source: Gottfried, Gerald J.; Gebow, Brooke S.; Eskew, Lane G.; Edminster, Carleton B., comps. Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II. Proc. RMRS-P-36. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 491-495
    Publication Series: Proceedings (P)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (239 KB)

    Description

    Carbon (C) and nitrogen (N) cycling within an open brush site, a sacaton (Sporobolus wrightii) grass and a mesquite (Prosopis velutina) grove, in the riparian zone was closely linked to the yearly litter N inputs. Yearly mesquite litter fall for 2 yr was remarkably similar and averaged 4.0 g N m-2 and 65 g C m-2 soil and resulted in higher soil C content compared to other riparian vegetation. The riparian soils held 7,000 metric tons more C than an adjacent nonriparian area suggesting the riparian zone processes result in a sink for atmospheric C. Water is essential for ecosystem function, and loss of water from the San Pedro River will severely impact the C sink in the riparian area.

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    Citation

    Martens, Dean A.; McLain, Jean E. T. 2005. Climate mitigation potential of the San Pedro River riparian zone. Gottfried, Gerald J.; Gebow, Brooke S.; Eskew, Lane G.; Edminster, Carleton B., comps. Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II. Proc. RMRS-P-36. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 491-495

    Keywords

    Sporobolus wrightii, Prosopis velutina, soil, carbon, nitrogen, cycling, riparian areas, riparian vegetation, plant litter, gases, San Pedro River (Mexico and Ariz.)

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