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    Using palm-mat geotextiles on an arable soil for water erosion control in the UK

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    Authors
    Bhattacharyya, Ranjan
    Fullen, Michael A.
    Booth, Colin A.
    Issue Date
    2011
    
    Metadata
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    Abstract
    To date, most studies of the effectiveness of geotextiles on soil erosion rates and processes have been conducted in laboratory experiments for less than 1 h. Hence, at Hilton (52°33′ N, 2°19′ W), UK, the effectiveness of employing palm-mat geotextiles for soil erosion control under field conditions on arable loamy sands was investigated. Geotextile-mats constructed from Borassus aethiopum (Borassus palm ofWest Africa) and Mauritia flexuosa (Buriti palm of South America) leaves are termed Borassus mats and Buriti mats, respectively. Duplicate runoff plots (10 m ¥ 1 m on a 15° slope) had five treatments (bare, permanent grass, Borassus total plot cover, Borassus buffer strip and Buriti buffer strip). Borassus covered plots had about 72% ground cover and to differentiate between this treatment and Borassus buffer strips, the former treatment is termed Borassus completely-covered. Runoff and eroded soil were collected from each bounded plot in a concrete gutter, leading to a receptacle. Results from 08/01/2007 – 23/01/2009 (total precipitation = 1776·5 mm; n = 53 time intervals) show that using Borassus buffer strips (area coverage ~10%) on bare soil decreased runoff volume by about 71% (P > 0·05) and soil erosion by 92% (P < 0·001). Bare plots had nearly 29·1 L m-2 runoff and 2·36 kg m-2 soil erosion during that period. Borassus buffer strip, Buriti buffer strip and Borassus completely-covered plots had similar effects in decreasing runoff volume and soil erosion. Runoff volumes largely explain the variability in soil erosion rates. Although buffer strips of Borassus mats were as effective as whole plot cover of the same mats, the longevity of Borassus mats was nearly twice that of Buriti mats. Thus, use of Borassus mats as buffer strips on bare plots is highly effective for soil erosion control. The mechanisms explaining the effectiveness of buffer strips require further studies under varied pedo-climatic conditions.
    Citation
    Earth surface processes and landforms,36 : 933–945
    Publisher
    Wiley
    Journal
    Earth surface processes and landforms
    URI
    http://hdl.handle.net/2436/132983
    DOI
    10.1002/esp.2123
    Additional Links
    http://doi.wiley.com/10.1002/esp.2123
    Type
    Journal article
    Language
    en
    ISSN
    01979337
    ae974a485f413a2113503eed53cd6c53
    10.1002/esp.2123
    Scopus Count
    Collections
    Faculty of Science and Engineering

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