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Chemical element concentrations in four lichens on a transect entering Voyageurs National Park

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Chemical element concentrations in four lichens on a transect entering Voyageurs National Park; 1997; Article; Journal; Environmental and Experimental Botany; Bennett, J.; Wetmore, C. M.

Summary

A three factor transect study was conducted to test the hypothesis that chemical elements from air emissions in the vicinity of International Falls, Minnesota could not be detected in lichens along a 24 km transect reaching into Voyageurs National Park. It was hypothesized that element concentrations in lichens would decline exponentially downwind and would reach background values at a distance before the park boundary. Four species (Cladina rangiferina, Evernia mesomorpha, Hypogymnia physodes, and Parmelia sulcata) were sampled at ten sites for 3 years and 17 chemical elements were measured. The most notable result was a curvilinear geographic trend for many elements, which decreased from International Falls and then increased towards [...]

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Type Scheme Key
local-index unknown 1004112
local-pk unknown 1004112
series unknown Environmental and Experimental Botany

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journalEnvironmental and Experimental Botany
parts
typevolume
value37
typeissue
value2-3
languageEnglish
citationTypeArticle

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