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Crittenden, PD/ Kershaw, KA 1978: Discovering the role of lichens in the nitrogen cycle in boreal-arctic ecosystems. - The Bryologist 81: 258-267. [RLL List # 101-19 / Rec.# 3699]
Keywords: CANADA/ NITROGEN FIXATION/ STEREOCAULON/ NORTHWEST TERRITORIES/ NITROGENASE
Abstract: [Data from studies of the nitrogen fixing capabilities of Stereocaulon paschale mats in the Northwest Territories "... suggest that simple predictive models are not yet able to accurately describe levels of nitrogenase activity in nature and that estimates of N-input on an annual or seasonal basis may be precarious."]

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