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A new mechanism for calcium loss in forest-floor soils

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A new mechanism for calcium loss in forest-floor soils; 1995; Article; Journal; Nature; Lawrence, G. B.; David, M. B.; Shortle, W. C.

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CALCIUM is the fifth most abundant element in trees, and is an essential component for wood formation and the maintenance of cell walls. Depletion of Ca from the rooting zone can result in acidification of soil1 and surface water2 and possibly growth decline and dieback of red spruce3,4. During the past six decades, concentrations of root-available Ca (exchangeable and acid-ex tract able forms) in forest-floor soils have decreased in the northeastern United States5,6. Both net forest growth and acid deposition have been put forth as mechanisms that can account for this Ca depletion5,6. Here, however, we present data collected in red spruce forests in the northeastern United States that are inconsistent with either of these mechanisms. [...]

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local-index unknown 70018879
local-pk unknown 70018879
series unknown Nature

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citationTypeArticle
journalNature
languageEnglish
parts
typevolume
value378
typeissue
value6554

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