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The role of the plant litter layer in the recycling of radiocaesium in upland habitats

Abstract

Field and laboratory studies have been used to investigate the role of the plant litter layer in upland habitats. Radiocaesium, deposited unhomogeneously, by the Chernobyl accident, ranged from 1 3000 - 2 400 Bq kgsup(-1) in a range of plant litters in May 1992. In the field 45% of the {sup 137}Cs in heather litter was released over a two year period. Litter leachates contained 0.1 -0.7 Bq 1{sup -1} of {sup 137}Cs. Microbial population size has also been shown to affect {sup 137}Cs release rates in laboratory experiments on heather and spruce litter. {sup 137}Cs distribution within litter has been investigated by sequential extraction techniques and it was shown that there is a potential long term immobilization of c. 20% of litter {sup 137}Cs by the lignin component. (author).
Authors:
Horrill, A D; Kennedy, V H; Dent, T L; Thomson, A J [1] 
  1. Institute of Terrestrial Ecology, Grange-on-Sands (United Kingdom). Merlewood Research Station
Publication Date:
Aug 01, 1992
Product Type:
Technical Report
Report Number:
DOE-RAS-92.007
Reference Number:
SCA: 540230; PA: AIX-24:041468; SN: 93000990077
Resource Relation:
Other Information: PBD: Aug 1992
Subject:
54 ENVIRONMENTAL SCIENCES; CESIUM 137; FOREST LITTER; BENCH-SCALE EXPERIMENTS; CHERNOBYLSK-4 REACTOR; EXPERIMENTAL DATA; FALLOUT; FIELD TESTS; LEACHING; RADIOECOLOGICAL CONCENTRATION; TERRESTRIAL ECOSYSTEMS; 540230; RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
OSTI ID:
10153528
Research Organizations:
Department of the Environment, London (United Kingdom). Radioactive Substances Div.
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Other: ON: DE93625615; CNN: Contract PECD-7/9/522; Project ITE T07050H5; TRN: GB9300541041468
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
GBN
Size:
[56] p.
Announcement Date:
Jul 06, 2005

Citation Formats

Horrill, A D, Kennedy, V H, Dent, T L, and Thomson, A J. The role of the plant litter layer in the recycling of radiocaesium in upland habitats. United Kingdom: N. p., 1992. Web.
Horrill, A D, Kennedy, V H, Dent, T L, & Thomson, A J. The role of the plant litter layer in the recycling of radiocaesium in upland habitats. United Kingdom.
Horrill, A D, Kennedy, V H, Dent, T L, and Thomson, A J. 1992. "The role of the plant litter layer in the recycling of radiocaesium in upland habitats." United Kingdom.
@misc{etde_10153528,
title = {The role of the plant litter layer in the recycling of radiocaesium in upland habitats}
author = {Horrill, A D, Kennedy, V H, Dent, T L, and Thomson, A J}
abstractNote = {Field and laboratory studies have been used to investigate the role of the plant litter layer in upland habitats. Radiocaesium, deposited unhomogeneously, by the Chernobyl accident, ranged from 1 3000 - 2 400 Bq kgsup(-1) in a range of plant litters in May 1992. In the field 45% of the {sup 137}Cs in heather litter was released over a two year period. Litter leachates contained 0.1 -0.7 Bq 1{sup -1} of {sup 137}Cs. Microbial population size has also been shown to affect {sup 137}Cs release rates in laboratory experiments on heather and spruce litter. {sup 137}Cs distribution within litter has been investigated by sequential extraction techniques and it was shown that there is a potential long term immobilization of c. 20% of litter {sup 137}Cs by the lignin component. (author).}
place = {United Kingdom}
year = {1992}
month = {Aug}
}