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Nitrogen excess in North American ecosystems: Predisposing factors, ecosystem responses, and management strategies

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Nitrogen excess in North American ecosystems: Predisposing factors, ecosystem responses, and management strategies; 1998; Article; Journal; Ecological Applications; Fenn, M. E.; Poth, M. A.; Aber, J. D.; Baron, J. S.; Bormann, B. T.; Johnson, D. W.; Lemly, A. D.; McNulty, S. G.; Ryan, D. F.; Stottlemyer, R.

Summary

Most forests in North America remain nitrogen limited, although recent studies have identified forested areas that exhibit symptoms of N excess, analogous to overfertilization of arable land. Nitrogen excess in watersheds is detrimental because of disruptions in plant/soil nutrient relations, increased soil acidification and aluminum mobility, increased emissions of nitrogenous greenhouse gases from soil, reduced methane consumption in soil, decreased water quality, toxic effects on freshwater biota, and eutrophication of coastal marine waters. Elevated nitrate (NO3/-) loss to groundwater or surface waters is the primary symptom of N excess. Additional symptoms include increasing N concentrations and higher N:nutrient ratios in foliage [...]

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Type Scheme Key
local-index unknown 70020744
local-pk unknown 70020744
series unknown Ecological Applications

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citationTypeArticle
journalEcological Applications
languageEnglish
parts
typevolume
value8
typeissue
value3

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