Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/7738
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: The extent and significance of bioturbation on Cs-137 distributions in upland soils
Authors: Tyler, Andrew
Carter, Stephen
Davidson, Donald
Long, Deborah J
Tipping, Richard
Contact Email: a.n.tyler@stir.ac.uk
Keywords: caesium-137
bioturbation
organic and mineral soils
non-native tree pollen
spheroidal carbonaceous particles micromorphology
Issue Date: 5-Mar-2001
Publisher: Elsevier
Citation: Tyler A, Carter S, Davidson D, Long DJ & Tipping R (2001) The extent and significance of bioturbation on Cs-137 distributions in upland soils, CATENA, 43 (2), pp. 81-99.
Abstract: Differences between measured 137Cs activity-depth profiles and idealised undisturbed profiles generated from an exponential model suggest that faunal turbation has redistributed 137Cs in mineral and organic upland soils in southern Scotland. Bioturbation is also demonstrated by the vertical displacement of other inputs to the soils of known age (non-native tree pollen and spheroidal carbonaceous particles, SCPs). The causes and mechanisms of bioturbation were further investigated by soil micromorphology. Well-drained mineral soils with active populations of earthworms are the most bioturbated, showing near-complete homogenisation to depths of about 20 cm. Enchytraeids also seem to remobilise 137Cs by the digestion of organic matter and may be the main cause of 137Cs redistribution in organic-rich upland soils. Relative rates of mixing are evaluated by comparing 137Cs depth profiles.
Type: Journal Article
URI: http://hdl.handle.net/1893/7738
URL: http://www.sciencedirect.com/science/article/pii/S0341816200001272
DOI Link: http://dx.doi.org/10.1016/S0341-8162(00)00127-2
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Biological and Environmental Sciences
Headland Archaeology (UK) Ltd
Biological and Environmental Sciences
University of Stirling
Biological and Environmental Sciences

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