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Lichen Elemental Indicators for Air Pollution in Eastern United States Forests

Susan Will-WolfSarah JovanMichael C. AmacherPaul L. Patterson

其他書名	A Pilot Study in the Upper Midwest
出版	U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2020
URL	http://books.google.com.hk/books?id=gnnPzQEACAAJ&hl=&source=gbs_api

註釋Five lichen species were evaluated as element-content pollution bioindicators for a pilot study in Wisconsin and adjacent U.S. states, using data for 20 elements. Goodquality elemental data for aluminum, cobalt, chromium, copper, iron, nitrogen, and sulfur--mostly from nonspecialist U.S. Forest Service Forest Inventory and Analysis staff collections with extensively documented protocols--clearly indicated a site pollution load in the project area. The percentage of nearby land in forest was the strongest predictor for sample collection at study sites of the two most frequent species; such knowledge facilitates improved broad applications. Improved protocols and three lichen species were recommended for implementation as elemental bioindicators in the north-central United States; species were also recommended for three other Eastern U.S. regions. The three reccomended species are Evernia mesomorpha Nyl.; Flavoparmelia caperata (L.) Hale, and the combined Physcia aipolia (Ehrh. ex Humb.) Fürnr var. aipolia and P. stellaris (L.) Nyl.