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Titolo:
A SIMPLE AND EFFICIENT METHOD TO ESTIMATE MICROSITE LIGHT AVAILABILITY UNDER A FOREST CANOPY
Autore:
PARENT S; MESSIER C;
Indirizzi:
UNIV QUEBEC,DEPT SCI BIOL,GRP RECH ECOL FORESTIERE,CP 8888,SUCCURSALECTR VILLE MONTREAL PQ H3C 3P8 CANADA
Titolo Testata:
Canadian journal of forest research
fascicolo: 1, volume: 26, anno: 1996,
pagine: 151 - 154
SICI:
0045-5067(1996)26:1<151:ASAEMT>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
GAULTHERIA-SHALLON; RAIN-FOREST; RADIATION; DYNAMICS; DENSITY; GROWTH; GAPS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
S. Parent e C. Messier, "A SIMPLE AND EFFICIENT METHOD TO ESTIMATE MICROSITE LIGHT AVAILABILITY UNDER A FOREST CANOPY", Canadian journal of forest research, 26(1), 1996, pp. 151-154

Abstract

This study presents a new, simple, and efficient method for estimating microsite light availability in the understory of a forest. The percentage of above-canopy photosynthetic photon flux density (%PPFD) transmitted above 16 microsites in the understory of a mixed conifer-broadleaf forest was measured every minute between 07:00 and 19:00 for botha completely overcast and a cloudless day. Instantaneous measures of %PPFD were also taken at different times on 3 overcast days. The instantaneous measures of %PPFD were strongly and directly related (P < 0.001) among themselves and with mean daily %PPFD values. These results demonstrate the usefulness of using an instantaneous measure of %PPFD taken under overcast sky conditions for estimating the mean daily %PPFDat any microsite under a forest canopy.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 16:29:06