Rasmuson, A.; Gimmi, Thomas; Fluhler, H. (1990). MODELING REACTIVE GAS UPTAKE, TRANSPORT, AND TRANSFORMATION IN AGGREGATED SOILS. Soil Science Society of America Journal, 54(5), pp. 1206-1213. Soil Science Society of America SSSA 10.2136/sssaj1990.03615995005400050002x
Full text not available from this repository. (Request a copy)Gas diffusion research in soils covers, to a large extent, the transport behavior of practically insoluble gases. We extend the mathematical description of gas transport to include reactive gaseous components that hydrolyze in water such as SO2 and CO2. The path between the free atmosphere and the microporous niches is modeled by assuming penetration through gas-filled macropores, air-water phase transfer, and diffusion and speciation in the liquid phase. For hydrolyzable gases, the rate of mass transfer into and the total absorption capacity of the soil solution may be high. Both the capacity and the transfer rate are influenced by the soil-solution pH; for high pH, they become extremely high for SO2. The soil absorption of such gases is also influenced by soil structure. Well-aerated, near-neutral soils are a potentially important sink for SO2.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Geological Sciences |
UniBE Contributor: |
Gimmi, Thomas |
Subjects: |
500 Science > 550 Earth sciences & geology |
ISSN: |
0361-5995 |
Publisher: |
Soil Science Society of America SSSA |
Language: |
English |
Submitter: |
Thomas Gimmi |
Date Deposited: |
11 Sep 2014 10:24 |
Last Modified: |
05 Dec 2022 14:31 |
Publisher DOI: |
10.2136/sssaj1990.03615995005400050002x |
URI: |
https://boris.unibe.ch/id/eprint/47680 |
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