NdangaBradleyCabral2015

Référence

Ndanga, T.M., Bradley, R.L. and Cabral, A.R. (2015) Does vegetation affect the methane oxidation efficiency of passive biosystems? Waste Management, 38(1):240-249. (Scopus )

Résumé

It is often reported in the technical literature that the presence of vegetation improves the methane oxidation efficiency of biosystems; however, the phenomena involved and biosystem performance results are still poorly documented, particularly in the field. This triggered a study to assess the importance of vegetation in methane oxidation efficiency (MOE). In this study, 4 large scale columns, each filled with sand, topsoil and a mixture of compost and topsoil were tested under controlled conditions in the laboratory and partially controlled conditions in the field. Four series of laboratory tests and two series of field tests were performed. 4 different plant covers were tested for each series: Trifolium repens L. (White clover), Phleum pratense L. (Timothy grass), a mixture of both, and bare soil as the control biosystem. The study results indicated that up to a loading equal to 100gCH<inf>4</inf>/m2/d, the type of plant cover did not influence the oxidation rates, and the MOE was quite high (≥95%) in all columns. Beyond this point, the oxidation rate continued to increase, reaching 253 and 179gCH<inf>4</inf>/m2/d in laboratory and field tests respectively. In the end, the bare soil achieved as high or higher MOEs than vegetated biosystems. Despite the fact that the findings of this study cannot be generalized to other types of biosystems and plants and that the vegetation types tested were not fully grown, it was shown that for the short-term tests performed and the types of substrates and plants used herein, vegetation does not seem to be a key factor for enhancing biosystem performance. This key conclusion does not corroborate the conclusion of the relatively few studies published in the technical literature assessing the importance of vegetation in MOE. © 2015 Elsevier Ltd.

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@ARTICLE { NdangaBradleyCabral2015,
    AUTHOR = { Ndanga, T.M. and Bradley, R.L. and Cabral, A.R. },
    TITLE = { Does vegetation affect the methane oxidation efficiency of passive biosystems? },
    JOURNAL = { Waste Management },
    YEAR = { 2015 },
    VOLUME = { 38 },
    PAGES = { 240-249 },
    NUMBER = { 1 },
    NOTE = { cited By 0 },
    ABSTRACT = { It is often reported in the technical literature that the presence of vegetation improves the methane oxidation efficiency of biosystems; however, the phenomena involved and biosystem performance results are still poorly documented, particularly in the field. This triggered a study to assess the importance of vegetation in methane oxidation efficiency (MOE). In this study, 4 large scale columns, each filled with sand, topsoil and a mixture of compost and topsoil were tested under controlled conditions in the laboratory and partially controlled conditions in the field. Four series of laboratory tests and two series of field tests were performed. 4 different plant covers were tested for each series: Trifolium repens L. (White clover), Phleum pratense L. (Timothy grass), a mixture of both, and bare soil as the control biosystem. The study results indicated that up to a loading equal to 100gCH<inf>4</inf>/m2/d, the type of plant cover did not influence the oxidation rates, and the MOE was quite high (≥95%) in all columns. Beyond this point, the oxidation rate continued to increase, reaching 253 and 179gCH<inf>4</inf>/m2/d in laboratory and field tests respectively. In the end, the bare soil achieved as high or higher MOEs than vegetated biosystems. Despite the fact that the findings of this study cannot be generalized to other types of biosystems and plants and that the vegetation types tested were not fully grown, it was shown that for the short-term tests performed and the types of substrates and plants used herein, vegetation does not seem to be a key factor for enhancing biosystem performance. This key conclusion does not corroborate the conclusion of the relatively few studies published in the technical literature assessing the importance of vegetation in MOE. © 2015 Elsevier Ltd. },
    AUTHOR_KEYWORDS = { Landfill final covers; Landfill gas emission abatement; Plant cover },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1016/j.wasman.2015.01.031 },
    KEYWORDS = { Biological systems; Composting; Efficiency; Land fill; Methane; Mixtures; Oxidation, Controlled conditions; Landfill final covers; Landfill gas emissions; Methane oxidation; Oxidation rates; Short-term test; Technical literature; Vegetation type, Vegetation, methane, compost; control system; landfill; methane; oxidation; sandy soil; topsoil; vegetation, agroecosystem; Article; compost; controlled study; environmental parameters; environmental temperature; irrigation (agriculture); methane oxidation efficiency; nonhuman; oxidation; Phleum pratense; plant seed; priority journal; sand; soil property; vegetation dynamics; white clover, Phleum pratense; Trifolium repens },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84933679853&partnerID=40&md5=fea547944fb4f27c41785c9cbae521df },
}

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