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Titolo:
USE OF SULFUR ISOTOPE RATIOS TO DETERMINE ANTHROPOGENIC SULFUR SIGNALS IN A GRASSLAND ECOSYSTEM
Autore:
ZHAO FJ; SPIRO B; POULTON PR; MCGRATH SP;
Indirizzi:
IACR ROTHAMSTED,DEPT SOIL SCI HARPENDEN AL5 2JQ HERTS ENGLAND IACR ROTHAMSTED,DEPT SOIL SCI HARPENDEN AL5 2JQ HERTS ENGLAND KINGSLEY DUNHAM CTR,ISOTOPE GEOSCI LAB KEYWORTH NG12 5GG NOTTS ENGLAND
Titolo Testata:
Environmental science & technology
fascicolo: 15, volume: 32, anno: 1998,
pagine: 2288 - 2291
SICI:
0013-936X(1998)32:15<2288:UOSIRT>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATMOSPHERIC DEPOSITION; CENTRAL-EUROPE; SOIL; ACIDIFICATION; PRECIPITATION; EMISSION; SULFATE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
F.J. Zhao et al., "USE OF SULFUR ISOTOPE RATIOS TO DETERMINE ANTHROPOGENIC SULFUR SIGNALS IN A GRASSLAND ECOSYSTEM", Environmental science & technology, 32(15), 1998, pp. 2288-2291

Abstract

Archived soil and herbage samples from the control plot of the Rothamsted Park Grass Experiment, established in 1856, were used to investigate the effects of dramatically changing SO2 pollution inputs on the concentrations and stable isotope ratios of S in the samples. Both herbage S concentrations and delta(34)S showed clear trends over the last 135 years. Herbage S concentrations correlated positively with annual total SO2 emissions in the U.K. (R-2 = 0.61), whereas herbage delta(34)S correlated negatively with SO2 emissions (R-2 = 0.83). These results indicate that local variations of anthropogenic S inputs were not important at the site and verify the usefulness of this unique sample set for environmental monitoring. in contrast, the concentrations of total and extractable S in the topsoil were less sensitive to the changing pollution, although the delta(34)S values of sail S also decreased significantly, particularly during the period 1900-1970. Based on theseS isotope ratios, we estimated that anthropogenic S contributed up to50% of the herbage S uptake at the peak of SO2 emissions and still accounts for about 30% of the S presently stored in the topsoil.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 19:19:25