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Titolo:
Changes in the composition of humus profiles near the trunk base of an oaktree (Quercus petraea (Mattus.) Liebl.)
Autore:
Deschaseaux, A; Ponge, JF;
Indirizzi:
Museum Natl Hist Nat, Lab Ecol Gen, F-91800 Brunoy, France Museum Natl Hist Nat Brunoy France F-91800 l Gen, F-91800 Brunoy, France
Titolo Testata:
EUROPEAN JOURNAL OF SOIL BIOLOGY
fascicolo: 1, volume: 37, anno: 2001,
pagine: 9 - 16
SICI:
1164-5563(200101/03)37:1<9:CITCOH>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOUNTAIN SPRUCE FOREST; SCOTS PINE LITTER; BEECH FOREST; SMALL VOLUME; MODER HUMUS; CHEMICAL PROPERTIES; SOIL ACIDIFICATION; SYLVOGENETIC CYCLE; STEMFLOW WATER; FORM DYNAMICS;
Keywords:
humus profiles; litter decomposition; soil biological activity; trunk base;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Ponge, JF Museum Natl Hist Nat, Lab Ecol Gen, 4 Ave Petit Chateau, F-91800Brunoy, France Museum Natl Hist Nat 4 Ave Petit Chateau Brunoy France F-91800
Citazione:
A. Deschaseaux e J.F. Ponge, "Changes in the composition of humus profiles near the trunk base of an oaktree (Quercus petraea (Mattus.) Liebl.)", EUR J SOIL, 37(1), 2001, pp. 9-16

Abstract

Humus profiles were sampled under the crown of a mature oak tree in a coppice with standards (Senart forest, 30 km south of Paris). The sampling design compared the composition of humus profiles at three distances of the trunk base (40, 140 and 240 cm) and in the four cardinal directions. An increase in the development of the OF layer (strongly decayed litter and faeces of epigeic fauna) was observed at 40 cm from the trunk base, paralleling an increase in soil titratable acidity. Since no significant change in litter composition occurred with distance to the trunk base and in the absence of stemflow reaching the ground during showers, diffusion of bark tannins fromburied parts of the trunk and main lateral roots were suspected to negatively influence soil biological activity, particularly earthworm activity. (C) 2001 Editions scientifiques et medicales Elsevier.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 10:57:24