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Titolo:
Belowground traits of herbaceous species in young coniferous forests of the Olympic Peninsula, Washington
Autore:
Lezberg, AL; Antos, JA; Halpern, CB;
Indirizzi:
Univ Washington, Coll Forest Resources, Div Ecosyst Sci, Seattle, WA 98195USA Univ Washington Seattle WA USA 98195 iv Ecosyst Sci, Seattle, WA 98195USA Univ Victoria, Dept Biol, Victoria, BC V8W 3N5, Canada Univ Victoria Victoria BC Canada V8W 3N5 ol, Victoria, BC V8W 3N5, Canada
Titolo Testata:
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE
fascicolo: 7, volume: 77, anno: 1999,
pagine: 936 - 943
SICI:
0008-4026(199907)77:7<936:BTOHSI>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
COASTAL BRITISH-COLUMBIA; WESTERN HEMLOCK; GAULTHERIA-SHALLON; RESOURCE-ALLOCATION; TRANSPLANTED RAMETS; SOUTHEAST ALASKA; LIFE-HISTORIES; GROWTH; PLANTS; HERBS;
Keywords:
biomass allocation; canopy closure; forest understory plants; rhizomes; root systems; succession;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Lezberg, AL Univ Washington, Coll Forest Resources, Div Ecosyst Sci, Box 352100, Seattle, WA 98195 USA Univ Washington Box 352100 Seattle WA USA 98195 , WA 98195 USA
Citazione:
A.L. Lezberg et al., "Belowground traits of herbaceous species in young coniferous forests of the Olympic Peninsula, Washington", CAN J BOTAN, 77(7), 1999, pp. 936-943

Abstract

Variation in belowground traits of herbaceous species may influence their ability to persist and spread during and after the closed-canopy period of forest development. In 40- to 60-year-old closed-canopy, coniferous forestsof the Olympic Peninsula, Washington, we excavated root and rhizome systems of 11 herbaceous species to compare morphology, vegetative spread, and proportion of biomass in belowground structures. All species were perennial and most were rhizomatous; four species were nonclonal. Of the seven clonal species, only two (Maianthemum dilatatum and Oxalis oregana) spread extensively (mean lateral spread > 50 cm) by belowground perennating structures. The proportion of total biomass in belowground structures varied considerably among species (21-85%) and was higher for deciduous than for evergreen species. High variability in belowground traits suggests that multiple strategies may contribute to survival during closed-canopy conditions. For species with a high proportion of belowground biomass, we suggest that the ability to store resources or to acquire new resources through lateral spread maycontribute to persistence in dense coniferous forests.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 01:30:42