{"id":39763,"date":"2026-03-03T16:22:27","date_gmt":"2026-03-03T15:22:27","guid":{"rendered":"https:\/\/srfb.be\/?page_id=39763"},"modified":"2026-03-10T09:26:48","modified_gmt":"2026-03-10T08:26:48","slug":"silvapedia-non-membre","status":"publish","type":"page","link":"https:\/\/kbbm.be\/de\/informations-sur-les-forets\/silvapedia-non-membre\/","title":{"rendered":"Silvapedia"},"content":{"rendered":"<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-899e6947 wp-block-group-is-layout-constrained\" style=\"padding-top:var(--wp--preset--spacing--60);padding-right:0;padding-bottom:var(--wp--preset--spacing--60);padding-left:0\"><div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/kbbm.be\/de\/\">Startseite<\/a><\/span> &gt; <span><a href=\"https:\/\/srfb.be\/informations-sur-les-forets\/\">Informationen \u00fcber W\u00e4lder<\/a><\/span> &gt; <span class=\"breadcrumb_last\" aria-current=\"page\"><strong>Silvapedia<\/strong><\/span><\/span><\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile has-grey-color-background-color has-background\" style=\"border-top-left-radius:7px;border-top-right-radius:7px;border-bottom-left-radius:7px;border-bottom-right-radius:7px;margin-top:var(--wp--preset--spacing--60);margin-bottom:var(--wp--preset--spacing--60);padding-top:0;padding-bottom:0\"><div class=\"wp-block-media-text__content\">\n<h2 class=\"wp-block-heading\"><strong>Les fiches essences de la SRFB<\/strong><\/h2>\n\n\n\n<p>Forte de son savoir-faire et de son expertise, la SRFB a rassembl\u00e9 au fil des ann\u00e9es une grande quantit\u00e9 d\u2019informations sur de nombreuses essences foresti\u00e8res, qu\u2019elles soient bien connues ou plus confidentielles.&nbsp;<br>Ces connaissances incluent notamment des essences test\u00e9es dans le cadre du projet&nbsp;<em><a href=\"https:\/\/treesforfuture.be\/\" type=\"link\" id=\"https:\/\/treesforfuture.be\/\" target=\"_blank\" rel=\"noreferrer noopener\">Trees&nbsp;for Future<\/a><\/em>.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/srfb.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage-1024x559.jpg\" alt=\"Trees for Future - Paysage plants\" class=\"wp-image-21830 size-full\" srcset=\"https:\/\/kbbm.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage-1024x559.jpg 1024w, https:\/\/kbbm.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage-600x328.jpg 600w, https:\/\/kbbm.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage-300x164.jpg 300w, https:\/\/kbbm.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage-768x419.jpg 768w, https:\/\/kbbm.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage-64x35.jpg 64w, https:\/\/kbbm.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage-18x10.jpg 18w, https:\/\/kbbm.be\/wp-content\/uploads\/2022\/02\/treesforfuture-paysage.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-70f4fdbb wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-border-color is-layout-constrained wp-container-core-group-is-layout-33d66a2b wp-block-group-is-layout-constrained\" style=\"border-color:#f2f2f2;border-width:3px;border-top-left-radius:7px;border-top-right-radius:7px;border-bottom-left-radius:7px;border-bottom-right-radius:7px;padding-top:var(--wp--preset--spacing--60);padding-right:var(--wp--preset--spacing--60);padding-bottom:0;padding-left:var(--wp--preset--spacing--60)\">\n<p>Afin de partager cette base de connaissances avec ses membres, la SRFB a d\u00e9velopp\u00e9 des fiches essences\u202faccessibles exclusivement via l\u2019<a href=\"https:\/\/srfb.be\/espace-membre\/\" type=\"page\" id=\"30268\" target=\"_blank\" rel=\"noreferrer noopener\">espace membre<\/a>.&nbsp;<br>Chaque fiche aborde l\u2019essence de mani\u00e8re large : crit\u00e8res de reconnaissance, exigences \u00e9cologiques, sylviculture, caract\u00e9ristiques techniques du bois, d\u00e9bouch\u00e9s de valorisation\u2026 Concernant les aspects techniques du mat\u00e9riau bois, les fiches ont b\u00e9n\u00e9fici\u00e9s de pr\u00e9cieuses informations et d\u2019une relecture fine par&nbsp;<a href=\"https:\/\/www.houtinfobois.be\/\" type=\"link\" id=\"https:\/\/www.houtinfobois.be\/\" target=\"_blank\" rel=\"noreferrer noopener\">Hout&nbsp;Info Bois<\/a> que nous remercions pour cette collaboration.&nbsp;<\/p>\n\n\n\n<p>L\u2019ensemble est pr\u00e9sent\u00e9 dans un langage accessible, tout en restant techniquement rigoureux et pr\u00e9cis.<br>Cette base de connaissances, baptis\u00e9e&nbsp;<strong>Silvapedia<\/strong>, est amen\u00e9e \u00e0 s\u2019enrichir r\u00e9guli\u00e8rement par la publication de nouvelles fiches.<\/p>\n\n\n\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-35e816eb wp-block-group-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--70);margin-bottom:var(--wp--preset--spacing--70)\">\n<hr class=\"wp-block-separator has-text-color has-grey-color-color has-alpha-channel-opacity has-grey-color-background-color has-background wp-container-content-759e20a8\" style=\"margin-top:0;margin-bottom:0\"\/>\n\n\n\n<figure class=\"wp-block-image size-large wp-container-content-e1bb55cb\"><img decoding=\"async\" src=\"https:\/\/srfb.be\/wp-content\/uploads\/2019\/07\/intro_offrez-vous.png\" alt=\"g\u00f6nnen Sie sich\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-grey-color-color has-alpha-channel-opacity has-grey-color-background-color has-background wp-container-content-759e20a8\" style=\"margin-top:0;margin-bottom:0\"\/>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<h3 class=\"wp-block-heading has-text-align-right has-vert-fonce-color-color has-text-color has-link-color wp-elements-2d40030e1f80aa42e8116d37cc3f591d\" style=\"font-size:clamp(1.25em, 1.25rem + ((1vw - 0.2em) * 0.938), 2em);\">D\u00e9couvrez un \u00e9chantillon de ce\u00a0travail en acc\u00e8s libre avec le C\u00e8dre de l&rsquo;Atlas<\/h3>\n\n\n\n<p class=\"has-text-align-right has-small-font-size\" style=\"font-style:italic;font-weight:400\"><a href=\"https:\/\/srfb.be\/wp-content\/uploads\/2026\/03\/Cedre-de-lAtlas.pdf\" type=\"link\" id=\"https:\/\/srfb.be\/wp-content\/uploads\/2026\/03\/Cedre-de-lAtlas.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">D\u00e9couvrir l&rsquo;\u00e9chantillon <span class=\"wp-rich-text-font-awesome-icon wp-font-awesome-icon\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"fas\" data-icon=\"arrow-right-long\" class=\"svg-inline--fa fa-arrow-right-long\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M566.6 278.6c12.5-12.5 12.5-32.8 0-45.3l-128-128c-12.5-12.5-32.8-12.5-45.3 0s-12.5 32.8 0 45.3L466.7 224 32 224c-17.7 0-32 14.3-32 32s14.3 32 32 32l434.7 0-73.4 73.4c-12.5 12.5-12.5 32.8 0 45.3s32.8 12.5 45.3 0l128-128z\"><\/path><\/svg><\/span><\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n\n\n<figure class=\"wp-block-image alignleft size-full is-resized\"><a href=\"https:\/\/srfb.be\/wp-content\/uploads\/2026\/03\/Cedre-de-lAtlas.pdf\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"595\" height=\"841\" src=\"https:\/\/srfb.be\/wp-content\/uploads\/2026\/03\/cedre-atlas.jpeg\" alt=\"C\u00e8dre de l'Atlas - Fiche\" class=\"wp-image-39801\" style=\"aspect-ratio:0.7074891228792832;width:325px;height:auto\" srcset=\"https:\/\/kbbm.be\/wp-content\/uploads\/2026\/03\/cedre-atlas.jpeg 595w, https:\/\/kbbm.be\/wp-content\/uploads\/2026\/03\/cedre-atlas-212x300.jpeg 212w, https:\/\/kbbm.be\/wp-content\/uploads\/2026\/03\/cedre-atlas-8x12.jpeg 8w\" sizes=\"auto, (max-width: 595px) 100vw, 595px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-grey-color-background-color has-background is-layout-constrained wp-container-core-group-is-layout-99d5396f wp-block-group-is-layout-constrained\" style=\"border-top-left-radius:7px;border-top-right-radius:7px;border-bottom-left-radius:7px;border-bottom-right-radius:7px;margin-top:var(--wp--preset--spacing--70);margin-bottom:var(--wp--preset--spacing--70);padding-top:var(--wp--preset--spacing--70);padding-right:var(--wp--preset--spacing--70);padding-bottom:var(--wp--preset--spacing--70);padding-left:var(--wp--preset--spacing--70)\">\n<p class=\"has-text-align-center has-large-font-size\" style=\"margin-top:0;margin-bottom:0;font-style:normal;font-weight:900\">Envie de lire plus ?<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-c3d5205c wp-block-buttons-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/srfb.be\/devenir-membre\/\">Mitglied werden<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"has-text-align-center has-small-font-size\" style=\"margin-top:0;margin-bottom:0;font-style:italic;font-weight:400\"><a href=\"https:\/\/srfb.be\/informations-sur-les-forets\/silvapedia\/\" type=\"link\" id=\"https:\/\/srfb.be\/informations-sur-les-forets\/silvapedia\/\">Je suis d\u00e9j\u00e0 membre !<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-35e816eb wp-block-group-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--70);margin-bottom:var(--wp--preset--spacing--70)\">\n<hr class=\"wp-block-separator has-text-color has-grey-color-color has-alpha-channel-opacity has-grey-color-background-color has-background wp-container-content-759e20a8\" style=\"margin-top:0;margin-bottom:0\"\/>\n\n\n\n<figure class=\"wp-block-image size-large wp-container-content-e1bb55cb\"><img decoding=\"async\" src=\"https:\/\/srfb.be\/wp-content\/uploads\/2019\/07\/intro_offrez-vous.png\" alt=\"g\u00f6nnen Sie sich\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-grey-color-color has-alpha-channel-opacity has-grey-color-background-color has-background wp-container-content-759e20a8\" style=\"margin-top:0;margin-bottom:0\"\/>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link has-text-color has-link-color has-border-color has-small-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/srfb.be\/wp-content\/uploads\/2026\/02\/Silvapedia-Lexique.pdf\" style=\"border-color:#9e9e9e;color:#9e9e9e\" target=\"_blank\" rel=\"noreferrer noopener\">Lexique version PDF<\/a><\/div>\n<\/div>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" id=\"lexique\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-container-core-accordion-item-is-layout-8a368f38 wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading has-grey-color-background-color has-background\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" type=\"button\" class=\"wp-block-accordion-heading__toggle\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\"><span class=\"wp-block-accordion-heading__toggle-title\">Lexikon<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--60);padding-right:var(--wp--preset--spacing--60);padding-bottom:var(--wp--preset--spacing--60);padding-left:var(--wp--preset--spacing--60)\">\n<figure class=\"wp-block-table is-style-stripes table-design\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Mot<\/th><th class=\"has-text-align-left\" data-align=\"left\">D\u00e9finition<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Ana\u00e9robiose<\/td><td class=\"has-text-align-left\" data-align=\"left\">Condition d\u2019un milieu pauvre en oxyg\u00e8ne, d\u00e9favorable \u00e0 la respiration racinaire.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Aubier<\/td><td class=\"has-text-align-left\" data-align=\"left\">Zone p\u00e9riph\u00e9rique du bois, physiologiquement active, assurant la conduction de la s\u00e8ve brute.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">BRINELL (N\/mm\u00b2)<\/td><td class=\"has-text-align-left\" data-align=\"left\">La duret\u00e9 de Brinell mesure la r\u00e9sistance d\u2019un bois \u00e0 \u00eatre enfonc\u00e9 ou \u00e9cras\u00e9. On applique une petite bille m\u00e9tallique sur le bois avec une charge pr\u00e9cise et on mesure la trace qu&rsquo;elle laisse : plus la trace est petite, plus le bois est dur.<br>C\u2019est un indicateur simple pour comparer les essences : un bois \u00e0 haute duret\u00e9 de Brinell sera plus r\u00e9sistant \u00e0 l\u2019usure, aux chocs et au sciage, tandis qu\u2019un bois plus tendre sera plus facile \u00e0 travailler mais moins r\u00e9sistant..<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cyanog\u00e9nique<\/td><td class=\"has-text-align-left\" data-align=\"left\">Plante capable de produire des compos\u00e9s lib\u00e9rant de l\u2019acide cyanhydrique.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">D\u00e9cidue<\/td><td class=\"has-text-align-left\" data-align=\"left\">Esp\u00e8ce perdant son feuillage chaque ann\u00e9e durant la saison d\u00e9favorable.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Drageons<\/td><td class=\"has-text-align-left\" data-align=\"left\">Pousses issues de bourgeons adventifs sur les racines, assurant une reproduction v\u00e9g\u00e9tative.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Drupe<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fruit charnu \u00e0 noyau contenant une seule graine.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Durabilit\u00e9 naturelle<\/td><td class=\"has-text-align-left\" data-align=\"left\">La norme europ\u00e9enne EN 350 d\u00e9finit la durabilit\u00e9 naturelle du bois vis-\u00e0-vis des champignons lignivores et, s\u00e9par\u00e9ment, la r\u00e9sistance naturelle aux insectes xylophages pour la plupart des essences utilis\u00e9es en Europe. La r\u00e9sistance aux insectes n\u2019est pas class\u00e9e par niveaux mais selon un principe binaire (\u00ab sensible \u00bb ou \u00ab non sensible \u00bb) en fonction des esp\u00e8ces concern\u00e9es. Les principaux insectes attaquant le bois dans le b\u00e2timent sont : le capricorne des maisons (Hylotrupes bajulus), attaquant principalement les r\u00e9sineux ; les Lyctus, attaquant surtout les feuillus riches en amidon ; la petite vrillette (Anobium punctatum), commun\u00e9ment appel\u00e9e \u00ab ver \u00e0 bois \u00bb.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Duramen<\/td><td class=\"has-text-align-left\" data-align=\"left\">Partie centrale du bois, physiologiquement inactive, g\u00e9n\u00e9ralement plus durable.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Essence mono\u00efque<\/td><td class=\"has-text-align-left\" data-align=\"left\">Esp\u00e8ce dont un m\u00eame individu porte des fleurs m\u00e2les et femelles distinctes.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Exigence \u00e9daphique<\/td><td class=\"has-text-align-left\" data-align=\"left\">Exigences d\u2019une esp\u00e8ce vis-\u00e0-vis des caract\u00e9ristiques du sol (texture, pH, drainage, richesse).<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Fascicul\u00e9<br>(enracinement)<\/td><td class=\"has-text-align-left\" data-align=\"left\">Syst\u00e8me racinaire compos\u00e9 de nombreuses racines de diam\u00e8tre similaire, sans pivot dominant.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Gemmoth\u00e9rapie<\/td><td class=\"has-text-align-left\" data-align=\"left\">Utilisation th\u00e9rapeutique des tissus embryonnaires v\u00e9g\u00e9taux (bourgeons, jeunes pousses).<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Glauque<\/td><td class=\"has-text-align-left\" data-align=\"left\">Conteneur de culture limitant l\u2019enroulement des racines pour favoriser un enracinement fonctionnel.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">JANKA (N)<\/td><td class=\"has-text-align-left\" data-align=\"left\">La duret\u00e9 Janka mesure la r\u00e9sistance du bois \u00e0 l\u2019enfoncement d\u2019une bille en acier de taille standard. On enfonce la bille \u00e0 moiti\u00e9 dans le bois et on mesure la force n\u00e9cessaire.<br>Plus la valeur est \u00e9lev\u00e9e, plus le bois est dur et r\u00e9sistant aux chocs et \u00e0 l\u2019usure.<br>Cette mesure est tr\u00e8s utilis\u00e9e pour comparer les essences de bois pour planchers, meubles ou bardages.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Lenticelle<\/td><td class=\"has-text-align-left\" data-align=\"left\">Petites ouvertures de l\u2019\u00e9corce permettant les \u00e9changes gazeux de l\u2019arbre. Elles se pr\u00e9sentent sous forme de points ou fentes l\u00e9g\u00e8rement sur\u00e9lev\u00e9s, souvent plus clairs ou plus fonc\u00e9s que l\u2019\u00e9corce, et leur forme varie selon l\u2019essence.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Masse volumique apparente<\/td><td class=\"has-text-align-left\" data-align=\"left\">Rapport entre la masse du bois et le volume total qu\u2019il occupe, vides compris. Elle d\u00e9pend fortement du taux d\u2019humidit\u00e9 et est g\u00e9n\u00e9ralement donn\u00e9e \u00e0 12 %<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Module d\u2019\u00e9lasticit\u00e9 (E)<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le module d\u2019\u00e9lasticit\u00e9 mesure la capacit\u00e9 du bois \u00e0 se plier ou se d\u00e9former sous une charge sans se casser. Concr\u00e8tement, il indique dans quelle mesure un morceau de bois revient \u00e0 sa forme initiale apr\u00e8s avoir \u00e9t\u00e9 fl\u00e9chi ou comprim\u00e9. Plus la valeur est \u00e9lev\u00e9e, plus le bois est rigide et r\u00e9sistant \u00e0 la flexion.<br>Cette donn\u00e9e est utile pour choisir les essences adapt\u00e9es aux structures portantes, poutres, charpentes ou \u00e9l\u00e9ments soumis \u00e0 des charges.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">MONNIN (mm)<\/td><td class=\"has-text-align-left\" data-align=\"left\">La duret\u00e9 Monnin est une mesure de la r\u00e9sistance du bois \u00e0 l\u2019\u00e9crasement sous une charge r\u00e9partie sur une surface carr\u00e9e ou rectangulaire. On appuie sur le bois avec un presse-m\u00e8tre et on mesure combien le bois r\u00e9siste \u00e0 la d\u00e9formation.<br>Plus la valeur Monnin est grande, plus le bois est ferme et solide.<br>Elle est particuli\u00e8rement utile pour les bois destin\u00e9s \u00e0 la construction, le sciage ou les structures portantes.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Compos\u00e9 ph\u00e9nolique<\/td><td class=\"has-text-align-left\" data-align=\"left\">Substance naturelle pr\u00e9sente dans le bois et l\u2019\u00e9corce, appartenant \u00e0 la famille des mol\u00e9cules aromatiques, qui joue un r\u00f4le dans la protection de l\u2019arbre contre les champignons, bact\u00e9ries et insectes.<br>Exemples courants : tanins, lignine.<br>Synonyme : Polyph\u00e9nol<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Polyph\u00e9nol<\/td><td class=\"has-text-align-left\" data-align=\"left\">Substance naturelle pr\u00e9sente dans le bois et l\u2019\u00e9corce, appartenant \u00e0 la famille des mol\u00e9cules aromatiques, qui joue un r\u00f4le dans la protection de l\u2019arbre contre les champignons, bact\u00e9ries et insectes.<br>Exemples courants : tanins, lignine.<br>Synonyme : compos\u00e9 ph\u00e9nolique<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Phototropisme<\/td><td class=\"has-text-align-left\" data-align=\"left\">Orientation de la croissance des organes v\u00e9g\u00e9taux en r\u00e9ponse \u00e0 la lumi\u00e8re.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Phytoncide<\/td><td class=\"has-text-align-left\" data-align=\"left\">Substance produite par certaines plantes ayant des propri\u00e9t\u00e9s antimicrobiennes ou antifongiques.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Plastique (essence)<\/td><td class=\"has-text-align-left\" data-align=\"left\">Essence pr\u00e9sentant une forte capacit\u00e9 d\u2019adaptation \u00e0 des conditions stationnelles vari\u00e9es.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Retrait entre 40 et 60% d&rsquo;humidit\u00e9 relative<\/td><td class=\"has-text-align-left\" data-align=\"left\">Variation dimensionnelle du bois en conditions int\u00e9rieures.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Retrait entre 60 et 90% d&rsquo;humidit\u00e9 relative<\/td><td class=\"has-text-align-left\" data-align=\"left\">Variation dimensionnelle du bois en conditions ext\u00e9rieures, li\u00e9e aux<br>variations hygrom\u00e9triques.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Retrait longitudinal<\/td><td class=\"has-text-align-left\" data-align=\"left\">Variation dimensionnelle du bois dans le sens des fibres lors du s\u00e9chage. Ce retrait est tr\u00e8s faible par rapport aux autres directions.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Retrait radial<\/td><td class=\"has-text-align-left\" data-align=\"left\">Diminution dimensionnelle du bois perpendiculairement aux cernes, de la moelle vers l\u2019\u00e9corce, lors du s\u00e9chage.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Rt \/ Rr<\/td><td class=\"has-text-align-left\" data-align=\"left\">Rapport entre le retrait tangentiel et le retrait radial, indicateur de stabilit\u00e9 dimensionnelle.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Surcim\u00e9<\/td><td class=\"has-text-align-left\" data-align=\"left\">Se dit d\u2019un arbre dont la cime est partiellement ou totalement domin\u00e9e par celles d\u2019arbres voisins plus \u00e9lev\u00e9s, recevant une lumi\u00e8re lat\u00e9rale ou r\u00e9duite, ce qui peut limiter sa croissance en hauteur et en diam\u00e8tre.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tabulaire (port)<\/td><td class=\"has-text-align-left\" data-align=\"left\">Port caract\u00e9ris\u00e9 par une cime large, \u00e9tal\u00e9e et aplatie.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Thermophile<\/td><td class=\"has-text-align-left\" data-align=\"left\">Esp\u00e8ce affectionnant les milieux chauds et les fortes sommes de temp\u00e9rature.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Zoochore<\/td><td class=\"has-text-align-left\" data-align=\"left\">Mode de diss\u00e9mination des graines assur\u00e9 par les animaux.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Mucron<\/td><td class=\"has-text-align-left\" data-align=\"left\">Petite pointe raide, courte et abrupte qui termine l&rsquo;extr\u00e9mit\u00e9 d&rsquo;un<br>organe v\u00e9g\u00e9tal, le plus souvent une feuille, un s\u00e9pale ou une bract\u00e9e.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Les fiches essences de la SRFB Forte de son savoir-faire et de son expertise, la SRFB a rassembl\u00e9 au fil des ann\u00e9es une grande quantit\u00e9 d\u2019informations sur de nombreuses essences foresti\u00e8res, qu\u2019elles soient bien connues ou plus confidentielles.&nbsp;Ces connaissances incluent notamment des essences test\u00e9es dans le cadre du projet&nbsp;Trees&nbsp;for Future. 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