{"id":197,"date":"2014-08-18T10:58:21","date_gmt":"2014-08-18T14:58:21","guid":{"rendered":"http:\/\/www.frfce.qc.ca\/?page_id=197"},"modified":"2014-09-15T10:45:30","modified_gmt":"2014-09-15T14:45:30","slug":"effet-de-lespacement-sur-le-rendement-du-peuplier-hybride-en-friche-agricole","status":"publish","type":"page","link":"https:\/\/www.frfce.qc.ca\/?page_id=197","title":{"rendered":"Effet de l\u2019espacement sur le rendement du peuplier hybride en friche agricole"},"content":{"rendered":"<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-126 size-full\" src=\"http:\/\/www.frfce.qc.ca\/wp-content\/uploads\/2014\/08\/espacement_rendement_peuplier_friche.png\" alt=\"espacement sur le rendement du peuplier hybride en friche agricole\" width=\"200\" height=\"200\" srcset=\"https:\/\/www.frfce.qc.ca\/wp-content\/uploads\/2014\/08\/espacement_rendement_peuplier_friche.png 200w, https:\/\/www.frfce.qc.ca\/wp-content\/uploads\/2014\/08\/espacement_rendement_peuplier_friche-150x150.png 150w, https:\/\/www.frfce.qc.ca\/wp-content\/uploads\/2014\/08\/espacement_rendement_peuplier_friche-50x50.png 50w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/>Mise en contexte<\/strong><\/p>\n<p>Le choix de l\u2019espacement (densit\u00e9 de plantation) entre les plants lors de la mise en terre est un important facteur \u00e0 consid\u00e9rer lorsque l\u2019on am\u00e9nage une plantation de peuplier hybride. L\u2019espacement d\u2019une plantation affecte g\u00e9n\u00e9ralement le temps n\u00e9cessaire pour atteindre un rendement optimal, mais \u00e9galement la qualit\u00e9 des tiges, en termes de diam\u00e8tre ou de volume par arbre. Il s\u2019av\u00e8re donc important d\u2019identifier un espacement de plantation optimal en fonction de l\u2019objectif de production (bois de d\u00e9roulage, de sciage, bois \u00e0 p\u00e2te ou bio\u00e9nergie).<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>Dispositif de recherche<\/strong><\/p>\n<p>En mai 2000, 3\u00a0plantations de peuplier hybrides ont \u00e9t\u00e9 \u00e9tablies par Benoit Truax chez des propri\u00e9taires priv\u00e9s des Cantons-de-l\u2019Est. Ces plantations ont \u00e9t\u00e9 \u00e9tablies le long d\u2019un gradient de climat (ou d\u2019altitude) et de fertilit\u00e9 des sols. Un seul clone de peuplier a \u00e9t\u00e9 utilis\u00e9 (DNxM-915508) et 6 espacements de plantations ont \u00e9t\u00e9 utilis\u00e9s (494, 741, 988, 1 111, 1 481, 1 975 tiges\/ha). Le protocole sylvicole utilis\u00e9 pour le projet de\u00a0<a title=\"Rendement des plantations de peuplier hybride sur les terres agricoles abandonn\u00e9es\" href=\"http:\/\/www.frfce.qc.ca\/?page_id=214\">Rendement des plantations de peuplier hybride sur les terres agricoles abandonn\u00e9es<\/a>\u00a0a \u00e9galement \u00e9t\u00e9 employ\u00e9 pour ce projet.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>R\u00e9sultats pr\u00e9liminaires<\/strong><\/p>\n<p>Le rendement des plantations a \u00e9t\u00e9 mesur\u00e9 \u00e0 8 ans et \u00e0 14 ans. Nos analyses pr\u00e9liminaires indiquent que\u00a0:<\/p>\n<ul>\n<li>L\u2019espacement de plantation n\u2019a pas affect\u00e9 significativement le rendement en volume \u00e0 l\u2019hectare apr\u00e8s 8 ans ou 14 ans.<\/li>\n<li>D\u2019autres facteurs (fertilit\u00e9 du site et survie initiale) affectent davantage le rendement \u00e0 l\u2019hectare.<\/li>\n<li>Les faibles densit\u00e9s produisent des arbres avec de plus gros diam\u00e8tres.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<style id=\"bwg-style-0\">    #bwg_container1_0 #bwg_container2_0 .bwg-container-0.bwg-standard-thumbnails {      width: 604px;              justify-content: center;        margin:0 auto !important;              background-color: rgba(255, 255, 255, 0.00);            padding-left: 4px;      padding-top: 4px;      max-width: 100%;            }        #bwg_container1_0 #bwg_container2_0 .bwg-container-0.bwg-standard-thumbnails .bwg-item {    justify-content: flex-start;      max-width: 120px;            width: 120px 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L\u2019espacement d\u2019une plantation affecte g\u00e9n\u00e9ralement le temps n\u00e9cessaire pour atteindre un rendement optimal, mais \u00e9galement la qualit\u00e9 des tiges, en termes de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":18,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-197","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=\/wp\/v2\/pages\/197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=197"}],"version-history":[{"count":7,"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=\/wp\/v2\/pages\/197\/revisions"}],"predecessor-version":[{"id":467,"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=\/wp\/v2\/pages\/197\/revisions\/467"}],"up":[{"embeddable":true,"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=\/wp\/v2\/pages\/18"}],"wp:attachment":[{"href":"https:\/\/www.frfce.qc.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}