{"id":1145,"date":"2025-07-26T07:55:19","date_gmt":"2025-07-26T07:55:19","guid":{"rendered":"https:\/\/www.aufildeleau.vda.it\/?page_id=1145"},"modified":"2025-12-07T18:09:05","modified_gmt":"2025-12-07T18:09:05","slug":"boschi-di-protezione-in-valle-daosta","status":"publish","type":"page","link":"https:\/\/www.aufildeleau.vda.it\/fr\/boschi-di-protezione-in-valle-daosta\/","title":{"rendered":"For\u00eats de protection en Vall\u00e9e d\u2019Aoste"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);aspect-ratio:auto;\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"134\" class=\"wp-block-cover__image-background wp-image-629 size-large\" alt=\"\" src=\"https:\/\/www.aufildeleau.vda.it\/wp-content\/uploads\/2025\/07\/copertina-1024x134.png\" data-object-fit=\"cover\" srcset=\"https:\/\/www.aufildeleau.vda.it\/wp-content\/uploads\/2025\/07\/copertina-1024x134.png 1024w, https:\/\/www.aufildeleau.vda.it\/wp-content\/uploads\/2025\/07\/copertina-300x39.png 300w, https:\/\/www.aufildeleau.vda.it\/wp-content\/uploads\/2025\/07\/copertina-768x100.png 768w, https:\/\/www.aufildeleau.vda.it\/wp-content\/uploads\/2025\/07\/copertina.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-foreground-background-color has-background-dim-80 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-group alignwide is-nowrap is-layout-flex wp-container-core-group-is-layout-7387b849 wp-block-group-is-layout-flex\">\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-1 wp-block-paragraph\" style=\"color:#fafafa;font-size:1.88rem\">For\u00eats de protection en Vall\u00e9e d\u2019Aoste<\/p>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-tertiary-background-color has-background is-layout-constrained wp-container-core-group-is-layout-712b1644 wp-block-group-is-layout-constrained\" id=\"chi-siamo\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--60);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--60);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-51ef7823 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">For\u00eats de protection en Vall\u00e9e d\u2019Aoste<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong><strong>Qu\u2019est-ce qu\u2019une for\u00eat de protection<\/strong>?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">En Vall\u00e9e d\u2019Aoste, environ<strong> 30% du territoire est couvert de for\u00eats<\/strong> aux fonctions multiples: productive, naturaliste et surtout <strong>protectrice<\/strong> contre les avalanches, les chutes de pierres, les coul\u00e9es de boue et l\u2019\u00e9rosion hydrog\u00e9ologique<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">On distingue trois niveaux de protection arbor\u00e9e:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\"><strong>Niveau I<\/strong>: protection g\u00e9n\u00e9rale contre l\u2019\u00e9rosion et r\u00e9gulation des eaux.<br><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><strong>Niveau II<\/strong>: att\u00e9nuation du roulement de blocs, des glissements, des avalanches sur pentes abruptes.<br><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><strong>Niveau III: protection directe<\/strong> lorsqu\u2019une for\u00eat se situe au-dessus de villages, routes ou infrastructures \u00e0 prot\u00e9ger.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\"><\/ul>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">En Vall\u00e9e d\u2019Aoste, environ <strong>42,7\u202f% de la couverture foresti\u00e8re assure une fonction de protection directe<\/strong> (niveau III), soit plus de <strong>40500 ha<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong><strong>Fonctionnement face aux risques naturels<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\">Les arbres <strong>interceptent la neige<\/strong>, rendant le manteau plus stable.<br><\/li>\n\n\n\n<li class=\"has-medium-font-size\">Les racines <strong>ancrent le sol<\/strong>, limitant les glissements.<br><\/li>\n\n\n\n<li class=\"has-medium-font-size\">La combinaison de pente, v\u00e9g\u00e9tation et corridors naturels freine les chutes de pierres et coul\u00e9es.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\"><\/ul>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Une for\u00eat saine et bien structur\u00e9e est donc le moyen <strong>naturel le plus efficace et le plus \u00e9conomique<\/strong> pour la s\u00e9curit\u00e9 alpine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong><strong>Esp\u00e8ces dominantes dans les bois de protection<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\"><strong>Larix et Pin<\/strong> <strong>cembro<\/strong> repr\u00e9sentent 40,3\u202f% des for\u00eats \u00e0 protection directe.<br><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><strong>Picea abies<\/strong> (\u00e9pic\u00e9as) et <strong>for\u00eats de Pin silvestre<\/strong>: ~15\u202f% chacune.<br><\/li>\n\n\n\n<li class=\"has-medium-font-size\">Feuillus comme <strong>\u00e9rables-fr\u00eanes<\/strong> (9,2\u202f%) et <strong>ch\u00e2taigniers<\/strong> (6,5\u202f%) compl\u00e8tent la couverture.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><\/li>\n<\/ul>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Sur les versants expos\u00e9s au soleil (\u00ab\u00a0Adret\u00a0\u00bb), pr\u00e9dominent le pin sylvestre et les feuillus h\u00e9liophiles\u202f; sur les versants ombrag\u00e9s (\u00ab\u00a0Envers\u00a0\u00bb), dominent le sapin blanc, le h\u00eatre et le pin cembro.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Histoire, cadre l\u00e9gal et gestion<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">D\u00e8s le <strong>R.D.L. 3267\/1923<\/strong>, la l\u00e9gislation italienne reconna\u00eet l\u2019importance des for\u00eats pour pr\u00e9venir les risques naturels.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">En Vall\u00e9e d\u2019Aoste, plus de <strong>91\u202f% du territoire<\/strong> est soumis \u00e0 des restrictions pour motifs d\u2019al\u00e9a hydrog\u00e9ologique.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Depuis 2000, des programmes Interreg et Alcotra ont d\u00e9velopp\u00e9 une cartographie et une gestion durable des for\u00eats de protection directe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong><strong>Un souffle long pour le territoire<\/strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Les bosquets de montagne ne sont pas que paysage: ce sont des <strong>protecteurs vivants<\/strong>, assurant s\u00e9curit\u00e9, biodiversit\u00e9, identit\u00e9 culturelle et activit\u00e9s traditionnelles.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Prot\u00e9ger ces for\u00eats, c\u2019est <strong>pr\u00e9server la vie de la vall\u00e9e<\/strong>.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\" style=\"margin-top:16px\"><strong>Sources<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/www.regione.vda.it\/risorsenaturali\/Foreste\/foreste_di_protezione_i.aspx\" target=\"_blank\" rel=\"noopener\" title=\"\">Sito ufficiale della Regione Autonoma Valle d&rsquo;Aosta &#8211; I boschi di protezione<\/a>,<\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/symbola.net\/approfondimento\/gli-scenari-mozzafiato-della-valle-daosta\/\" target=\"_blank\" rel=\"noopener\" title=\"\">Fondazione Symbola &#8211; la Fondazione per le qualit\u00e0 italiane &#8211; Gli scenari mozzafiato della Valle d\u2019Aosta<\/a>,<\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/foresta.sisef.org\/contents\/?id=efor0388-0030420\" target=\"_blank\" rel=\"noopener\" title=\"\">Forest@ &#8211; Rivista di Selvicoltura ed Ecologia Forestale &#8211; Analisi della funzione protettiva delle foreste: l\u2019esempio della \u201cCarta delle foreste di protezione diretta della Valle d\u2019Aosta\u201d<\/a>,<\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/www.waldwissen.net\/it\/ecosistema-bosco\/funzione-di-protezione\/neve-e-valanghe\/protezione-contro-le-valanghe\" target=\"_blank\" rel=\"noopener\" title=\"\">Waldwissen.net &#8211; Istituto federale di ricerca per la foresta, la neve e il paesaggio &#8211; Foreste di montagna e protezione contro le valanghe<\/a>,<\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/it.wikipedia.org\/wiki\/Foresta_di_protezione\" target=\"_blank\" rel=\"noopener\" title=\"\">Wikipedia &#8211; Foresta di protezione<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>For\u00eats de protection en Vall\u00e9e d\u2019Aoste Qu\u2019est-ce qu\u2019une for\u00eat de protection? En Vall\u00e9e d\u2019Aoste, environ 30% du territoire est couvert de for\u00eats aux fonctions multiples: productive, naturaliste et surtout protectrice contre les avalanches, les chutes de pierres, les coul\u00e9es de boue et l\u2019\u00e9rosion hydrog\u00e9ologique On distingue trois niveaux de protection arbor\u00e9e: En Vall\u00e9e d\u2019Aoste, environ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"h5ap_radio_sources":[],"footnotes":""},"class_list":["post-1145","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/pages\/1145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/comments?post=1145"}],"version-history":[{"count":12,"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/pages\/1145\/revisions"}],"predecessor-version":[{"id":1634,"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/pages\/1145\/revisions\/1634"}],"wp:attachment":[{"href":"https:\/\/www.aufildeleau.vda.it\/fr\/wp-json\/wp\/v2\/media?parent=1145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}