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Titolo:
EFFECTS OF THINNING IN A 43-YEAR-OLD DOUGLAS-FIR STAND ON ABOVE-GROUND AND BELOW-GROUND BIOMASS ALLOCATION AND LEAF STRUCTURE OF UNDERSTORYGAULTHERIA SHALLON
Autore:
MESSIER C; MITCHELL AK;
Indirizzi:
UNIV QUEBEC,DEPT SCI BIOL,RECH ECOL FORESTIERE GRP,CP 8888 MONTREAL H3C 3P8 PQ CANADA FORESTRY CANADA,PACIFIC FORESTRY CTR VICTORIA V8Z 1M5 BC CANADA
Titolo Testata:
Forest ecology and management
fascicolo: 2-3, volume: 68, anno: 1994,
pagine: 263 - 271
SICI:
0378-1127(1994)68:2-3<263:EOTIA4>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
COASTAL BRITISH-COLUMBIA; CEDAR HEMLOCK CUTOVERS; WESTERN RED CEDAR; VANCOUVER ISLAND; FOLIAR ANALYSIS; CLEAR-CUT; PLANTS; SHADE; STRESS; GROWTH;
Keywords:
COMPETITION; FINE-ROOT BIOMASS; RHIZOME BIOMASS; SILVICULTURAL IMPLICATIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
C. Messier e A.K. Mitchell, "EFFECTS OF THINNING IN A 43-YEAR-OLD DOUGLAS-FIR STAND ON ABOVE-GROUND AND BELOW-GROUND BIOMASS ALLOCATION AND LEAF STRUCTURE OF UNDERSTORYGAULTHERIA SHALLON", Forest ecology and management, 68(2-3), 1994, pp. 263-271

Abstract

The above- and below-ground biomass allocation and leaf structure of understory salal (Gaultheria shallon) were compared between an unthinned and a heavily thinned (two-thirds of basal area removed) 43-year-old Douglas-fir (Pseudotsuga menziesii) plot 6 years after thinning at Shawnigan Lake on southern Vancouver Island, British Columbia. The increase in both above- and below-ground resources caused by thinning resulted in a smaller fine-root/leaf biomass ratio in the thinned (1.2) than the unthinned (2.0) plot. The balance between the production of fine-roots to acquire limited water and of foliage to acquire limited light is suggested as an explanation for this shift in carbon allocation from fine-root to leaf biomass between the two plots. The responses ofG. shallon to thinning are discussed in relation to its role as a competitor for below-ground resources.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 16:24:59