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Laboratory measurement of freeze/thaw, compaction, residue and slope effects on rill erosion
Authors: P.A Frame, J.R. Burney and Linnell Edwards
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Download file: https://library.csbe-scgab.ca/docs/journal/34/34_2_143_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 34 (1992)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/34/34_2_143_raw.pdf
DOI:
Description: The effects of alternate freezing and thawing (freeze/thaw) on rill erosion of a saturated Prince Edward Island (PEI) fine sandy loam were tested under complete factorial combinations of straw incorporation, sur face compaction and slope. The test apparatus, installed in a temperature-controlled room, comprised troughs of soil (3.66 m long) with controlled inflow, adjustable outflow gates and sub-sur face wetting and draining pipes. A uniformly-formed V-shaped depression (1:4.5 side slopes) in the soil surface concentrated rill formation down the centre during initial inflow application. Soil loss was nearly ten times greater from bare soil than from soil with incorporated straw, over two times greater on 7% slope than on 3.5% slope, and 24% greater on frozen soil previously subjected to freeze/thaw cycling than soil with no freezing. Overall compaction was not significant. However, the interaction between compaction and temperature was significant. With no freezing, soil loss was significantly greater without compaction, but with freeze/thaw com paction was not significant. For freeze/thaw treatments, sediment concentration initially increased with flow duration and then de creased, whereas for the treatments with no freezing, sediment concentration continually decreased with time. Bare soil and steeper slope produced deep and narrow rills throughout the rill lengths, whereas freeze/thaw and compaction treatments produced signifi cantly deeper and narrower rills with substantial headcutting only in the upper reach.
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Citation: P.A Frame, J.R. Burney and Linnell Edwards 1992. LABORATORY MEASUREMENT OF FREEZE/THAW, COMPACTION, RESIDUE AND SLOPE EFFECTS ON RILL EROSION. Canadian Agricultural Engineering 34(2):143-149.
Volume: 34
Issue: 1
Pages -
Contributor:
Date: 1992
Technical field:
Conference name:
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Type: Text.Article
Format: PDF
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Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: The effects of alternate freezing and thawing (freeze/thaw) on rill erosion of a saturated Prince Edward Island (PEI) fine sandy loam were tested under complete factorial combinations of straw incorporation, sur face compaction and slope. The test apparatus, installed in a temperature-controlled room, comprised troughs of soil (3.66 m long) with controlled inflow, adjustable outflow gates and sub-sur face wetting and draining pipes. A uniformly-formed V-shaped depression (1:4.5 side slopes) in the soil surface concentrated rill formation down the centre during initial inflow application. Soil loss was nearly ten times greater from bare soil than from soil with incorporated straw, over two times greater on 7% slope than on 3.5% slope, and 24% greater on frozen soil previously subjected to freeze/thaw cycling than soil with no freezing. Overall compaction was not significant. However, the interaction between compaction and temperature was significant. With no freezing, soil loss was significantly greater without compaction, but with freeze/thaw com paction was not significant. For freeze/thaw treatments, sediment concentration initially increased with flow duration and then de creased, whereas for the treatments with no freezing, sediment concentration continually decreased with time. Bare soil and steeper slope produced deep and narrow rills throughout the rill lengths, whereas freeze/thaw and compaction treatments produced signifi cantly deeper and narrower rills with substantial headcutting only in the upper reach.
Keywords:
Résumé:
Mots-clés:
Citation: P.A Frame, J.R. Burney and Linnell Edwards 1992. LABORATORY MEASUREMENT OF FREEZE/THAW, COMPACTION, RESIDUE AND SLOPE EFFECTS ON RILL EROSION. Canadian Agricultural Engineering 34(2):143-149.
Volume: 34
Issue: 1
Pages -
Contributor:
Date: 1992
Technical field:
Conference name:
Session name:
Other information:
Type: Text.Article
Format: PDF
Publication type:
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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