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Flux of COS, DMS and CS2 from various soils in Germany Cover

Flux of COS, DMS and CS2 from various soils in Germany

Open Access
|Jan 1989

Abstract

Emission rates of the reduced sulfur gases carbonyl sulfide (COS), dimethyl sulfide (CH3SCH3) and carbon disulfide (CS2) from 12 representative soils in Germany have been examined by means of a dynamic gas emission chamber. The compounds were sampled by cryogenic technique and measured by subsequent GC/FPD-analysis. It could be shown that besides soil type, soil temperature and moisture are the major factors controlling source strength. DMS and COS were the predominant gases emitted from organic soils; CS2 emission rates showed highest values at waterlogged soils. Measurements of the diurnal variations of emission rates show daily patterns of DMS and COS emission rates which coincide with the soil temperature curve, whereas the CS2 emission showing a maximum at midday might be determined by other factors, e.g., light intensity. Seasonal changes in the physiology of plants and in the population of soil micro-organisms may cause the measured peak emissions during fall at comparatively low soil temperatures.

Language: English
Page range: 305 - 313
Submitted on: Nov 15, 1987
Accepted on: Jul 13, 1988
Published on: Jan 1, 1989
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services

© 1989 R. Staubes, H.-W. Georgii, G. Ockelmann, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.