FaubertDurocherBertrandEtAl2017

Référence

Faubert, P., Durocher, S., Bertrand, N., Ouimet, R., Rochette, P., Tremblay, P., Boucher, J.-F. and Villeneuve, C. (2017) Greenhouse gas emissions after application of landfilled paper mill sludge for land reclamation of a nonacidic mine tailings site. Journal of Environmental Quality, 46(5):950-960. (Scopus )

Résumé

Large areas of mine tailings are reclaimed by applying organic amendments such as paper mill sludge (PMS). Although mining industries can use PMS freshly generated by paper mills, operational constraints on paper industries make temporary landfilling of this material an unavoidable alternative for the paper industries, creating the most prominent PMS source for mining industries. This study aimed to quantify soil greenhouse gas (GHG) emissions (N2O, CO2, and CH4) after application of landfilled PMS (LPMS; i.e., excavated from a landfill site at a paper mill) and LPMS combined with a seeding treatment of white clover (Trifolium repens L.) on nonacidic mine tailings site prior to reforestation. Soil N2O, CO2, and CH4 fluxes were measured after applications of 50 and 100 Mg dry LPMS ha-1 during two consecutive snowfree seasons on two adjacent sites; LPMS was applied once in the first season. The LPMS application increased N2O emissions (7.6 to 34.7 kg N2O-N ha-1, comprising 1.04 to 2.43% of applied N) compared with the unamended control during the first season; these emissions were negligible during the second season. The LPMS application increased CO2 emissions (~5800 to 11,400 kg CO2-C ha-1, comprising 7 to 27% of applied C) compared with the unamended control on both sites and in both seasons. Fluxes of CH4 were negligible. White clover combined with LPMS treatments did not affect soil GHG emissions. These new GHG emission factors should be integrated into life-cycle analyses to evaluate the C footprint of potential symbioses between the mining and paper industries. Future research should focus on the effect of PMS applications on soil GHG emissions from a variety of mine tailings under various management practices and climatic conditions to plan responsible and sustainable land reclamation. © American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. 5585 Guilford Rd., Madison, WI 53711 USA.

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@ARTICLE { FaubertDurocherBertrandEtAl2017,
    AUTHOR = { Faubert, P. and Durocher, S. and Bertrand, N. and Ouimet, R. and Rochette, P. and Tremblay, P. and Boucher, J.-F. and Villeneuve, C. },
    TITLE = { Greenhouse gas emissions after application of landfilled paper mill sludge for land reclamation of a nonacidic mine tailings site },
    JOURNAL = { Journal of Environmental Quality },
    YEAR = { 2017 },
    VOLUME = { 46 },
    NUMBER = { 5 },
    PAGES = { 950-960 },
    NOTE = { cited By 0 },
    ABSTRACT = { Large areas of mine tailings are reclaimed by applying organic amendments such as paper mill sludge (PMS). Although mining industries can use PMS freshly generated by paper mills, operational constraints on paper industries make temporary landfilling of this material an unavoidable alternative for the paper industries, creating the most prominent PMS source for mining industries. This study aimed to quantify soil greenhouse gas (GHG) emissions (N2O, CO2, and CH4) after application of landfilled PMS (LPMS; i.e., excavated from a landfill site at a paper mill) and LPMS combined with a seeding treatment of white clover (Trifolium repens L.) on nonacidic mine tailings site prior to reforestation. Soil N2O, CO2, and CH4 fluxes were measured after applications of 50 and 100 Mg dry LPMS ha-1 during two consecutive snowfree seasons on two adjacent sites; LPMS was applied once in the first season. The LPMS application increased N2O emissions (7.6 to 34.7 kg N2O-N ha-1, comprising 1.04 to 2.43% of applied N) compared with the unamended control during the first season; these emissions were negligible during the second season. The LPMS application increased CO2 emissions (~5800 to 11,400 kg CO2-C ha-1, comprising 7 to 27% of applied C) compared with the unamended control on both sites and in both seasons. Fluxes of CH4 were negligible. White clover combined with LPMS treatments did not affect soil GHG emissions. These new GHG emission factors should be integrated into life-cycle analyses to evaluate the C footprint of potential symbioses between the mining and paper industries. Future research should focus on the effect of PMS applications on soil GHG emissions from a variety of mine tailings under various management practices and climatic conditions to plan responsible and sustainable land reclamation. © American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. 5585 Guilford Rd., Madison, WI 53711 USA. },
    AFFILIATION = { Dép. des sciences fondamentales, Univ. du Québec à Chicoutimi, 555 boulevard de l'Université, Chicoutimi, QC, Canada; Agriculture and Agri-Food Canada, Quebec Research and Development Centre, 2560 Hochelaga Blvd., Québec, QC, Canada; Ministère des Forêts, de la Faune et des Parcs, Direction de la recherche forestière, Complexe scientifique, 2700 Einstein St., Québec, QC, Canada },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.2134/jeq2017.03.0119 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029724020&doi=10.2134%2fjeq2017.03.0119&partnerID=40&md5=71284bdcb47ad8f84f194047783655b7 },
}

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