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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Birdsey, Richard A. - United States. Forest Service.
    Publication info: [Washington, D.C.?], U.S. Dept. of Agriculture, Forest Service, [1992]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Carbon cycle (Biogeochemistry)  Climatic factors  Effect of carbon on  Forest ecology  Plants  Trees  United States