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Titolo:
Effects of growing roots of Norway spruce (Picea abies [L.] Karst.) and European beech (Fagus sylvatica L.) on rhizosphere soil solution chemistry
Autore:
Wang, ZY; Gottlein, A; Bartonek, G;
Indirizzi:
Tech Univ Munich, Lehrbereich Waldernahrung & Wasserhaushalt, D-85354 Freising, Germany Tech Univ Munich Freising Germany D-85354 alt, D-85354 Freising, Germany
Titolo Testata:
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE
fascicolo: 1, volume: 164, anno: 2001,
pagine: 35 - 41
SICI:
1436-8730(200102)164:1<35:EOGRON>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
CAPILLARY ELECTROPHORESIS; ORGANIC-ACIDS; ALUMINUM; MOBILIZATION; DEPOSITION; FOREST; SYSTEM; PH;
Keywords:
rhizosphere; soil solution; beech; spruce;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, ZY Tech Univ Munich, Lehrbereich Waldernahrung & Wasserhaushalt, Hochanger 13, D-85354 Freising, Germany Tech Univ Munich Hochanger 13 Freising Germany D-85354 , Germany
Citazione:
Z.Y. Wang et al., "Effects of growing roots of Norway spruce (Picea abies [L.] Karst.) and European beech (Fagus sylvatica L.) on rhizosphere soil solution chemistry", J PLANT NU, 164(1), 2001, pp. 35-41

Abstract

The chemical conditions of the rhizosphere can be very different from thatof bulk soil. Up to now, little attention has been given to the problem ofspatial heterogeneity and temporal dynamics of rhizosphere soil solution and little is known about the influence of different tree species on rhizosphere chemistry. In the present study, we used micro suction cups to collectsoil solution from the rhizosphere of Norway spruce (Picea abies [L.] Karst.) and European beech (Fagus sylvatica L.) seedlings in high spatial resolution and capillary electrophoresis for the determination of major cations and anions. The results indicate, that in a soil with a base saturation of about 20-25% and a pH of 6.5, growing roots of beech and spruce lower the concentrations of nutrient cations and nitrate in the rhizosphere soil solution and decrease significantly the pH. The H+ release leads to an enhanced mineral weathering as indicated by an increase of CEC and base saturation and to a mobilization of soluble Al, however, on a very low concentration level. In our experiment rhizosphere effects of spruce have been more pronounced than those of beech, indicating, that with respect to below ground activity young spruce trees have a better competitive power than beech.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 11:07:57