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Titolo:
EVALUATION OF SULFUR CYCLING IN MANAGED FOREST STANDS BY MEANS OF STABLE S-ISOTOPE ANALYSIS
Autore:
GIESEMANN A; JAGER HJ; FEGER KH;
Indirizzi:
UNIV GIESSEN,INST PFLANZENOKOL,HEINRICH BUFF RING 38 D-35392 GIESSEN GERMANY UNIV FREIBURG,INST BODENKUNDE & WALDERNAHRUNGSLEHRE D-79098 FREIBURG GERMANY
Titolo Testata:
Plant and soil
, volume: 169, anno: 1995,
pagine: 399 - 404
SICI:
0032-079X(1995)169:<399:EOSCIM>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
BOREAL FOREST; EMISSIONS;
Keywords:
MANAGED FOREST STANDS; STABLE ISOTOPES; SULFUR CYCLING; S-TURNOVER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
A. Giesemann et al., "EVALUATION OF SULFUR CYCLING IN MANAGED FOREST STANDS BY MEANS OF STABLE S-ISOTOPE ANALYSIS", Plant and soil, 169, 1995, pp. 399-404

Abstract

Sulphur cycling was evaluated in a 20 to 60 year old Norway spruce (Picea abies L. Karst) ecosystem in the Black Forest near Schluchsee, SWGermany, by means of stable sulphur isotope analysis. Soil and plant material were analysed for S-content and S-isotopic composition to gather information on the S-distribution in the ecosystem. Two out of three adjacent watershed areas, highly comparable to each other were fertilized with MgSO4 acid (NH4)(2)SO4 respectively, where sulphate was enriched in the S-34-isotope compared to the sulphur present in the ecosystem. As the fertilizer S served as a tracer, comparison of the S-isotopic composition of total and inorganic S in the soil and S in spruceneedles from both the treated and the control sites led to new information of S-turnover processes. The S-isotopic composition of spruce needles changed markedly after the fertilizer application. Within half ayear a shift towards the S-isotopic composition of the fertilizers sulphate indicated uptake of the sulphate by the trees, although this uptake did not become visible with the S content of the needles. Regarding the soil, a shift in the S-isotopic composition of the total sulphur was not that striking as with the needles, although the phosphate extractable sulphate showed a clear shift towards the S-isotopic composition of the fertilizer sulphate.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 16:57:03