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  1. Distribution of nitrous oxide and regulators of its production across a tropical rainforest catena in the Luquillo Experimental Forest, Puerto Rico

    Understanding of N2O fluxes to the atmosphere is complicated by interactions between chemical and physical controls on both production and movement of the gas. To better understand how N2O production is controlled in the soil, we measured concentrations of N2O and of the proximal controllers on its production in soil water and soil air in a field study in the Rio...

    Author(s):
    CLAIRE P. MCSWINEY; WILLIAM H. MCDOWELL; MICHAEL KELLER
    Year:
    2001
    Keywords:
    ammonium, nitrate, nitrous oxide, oxygen, rainforest, redox
    Source:
    Biogeochemistry 56: 265–286,

  2. An analysis of tropical hardwood product importation and consumption in the United States

    The consumption of forest products emanating from tropical rainforests is an issue that is receiving increasing attention in the United States. This attention stems from concerns over the sustainability of tropical ecosystems. However, trade statistics show the United States imported only 4.0 percent of all tropical timber products traded globally in 1989. In addition...

    Author(s):
    Paul M. Smith; Michael P. Haas; William G. Luppold; William G. Luppold
    Year:
    1995
    Keywords:
    Source:
    Forest Products Journal. 45(4): 31-37.
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