Fine root biomass declined in response to restoration of soil calcium in a northern hardwood forest

Forest health deteriorated in eastern North America as a result of depletion of available soil base cations by elevated inputs of acid deposition. We experimentally restored available calcium (Ca) to soils of a forested watershed at Hubbard Brook, New Hampshire, and measured the response of fine roo...

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Veröffentlicht in:	Canadian journal of forest research 2016-05, Vol.46 (5), p.738-744
Hauptverfasser:	Fahey, Timothy J, Alexis K. Heinz, John J. Battles, Melany C. Fisk, Charles T. Driscoll, Joel D. Blum, Chris E. Johnson
Format:	Artikel
Sprache:	eng
Schlagworte:	aboveground biomass Acid deposition acidification allocation base saturation Biomass biomass production Calcium Calcium, Dietary carbon Cations Deciduous forests Environmental aspects Environmental impact exchangeable calcium fine roots Forest ecosystems forest health Forest watersheds forested watersheds Forests hardwood hardwood forests indice de surface foliaire leaf area index mycorhizes mycorrhizae Pollutant deposition primary productivity production root systems Soil acidification Soils Trees
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Beschreibung
Zusammenfassung:	Forest health deteriorated in eastern North America as a result of depletion of available soil base cations by elevated inputs of acid deposition. We experimentally restored available calcium (Ca) to soils of a forested watershed at Hubbard Brook, New Hampshire, and measured the response of fine root biomass 14 years after treatment. In this northern hardwood forest, fine root (
ISSN:	1208-6037 0045-5067 1208-6037
DOI:	10.1139/cjfr-2015-0434