{"id":44199,"date":"2024-10-23T16:41:09","date_gmt":"2024-10-23T14:41:09","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=article-foret-nature&#038;p=44199"},"modified":"2024-10-23T16:41:09","modified_gmt":"2024-10-23T14:41:09","slug":"des-outils-destimation-de-la-lumiere-en-foret","status":"publish","type":"article-foret-nature","link":"https:\/\/foretnature.be\/en\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/","title":{"rendered":"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat"},"content":{"rendered":"<p>La lumi\u00e8re, indispensable aux v\u00e9g\u00e9taux, est un facteur particuli\u00e8rement variable dans le temps et dans l\u2019espace et ses caract\u00e9ristiques sont difficiles \u00e0 \u00e9valuer. Son estimation est pourtant n\u00e9cessaire \u00e0 tous les stades de d\u00e9veloppement des peuplements. Lors des phases de renouvellement des peuplements, le dosage de la lumi\u00e8re est r\u00e9alis\u00e9 par le principal instrument de gestion : la coupe. La connaissance des valeurs optimales d\u2019\u00e9clairement n\u00e9cessaires \u00e0 l\u2019installation de la r\u00e9g\u00e9n\u00e9ration et \u00e0 sa croissance ult\u00e9rieure est donc fondamentale. Cet article, r\u00e9dig\u00e9 dans le cadre du projet Interreg CoForKo, a pour objectifs de pr\u00e9senter les principales caract\u00e9ristiques de la lumi\u00e8re en for\u00eat et de d\u00e9crire quelques outils susceptibles d\u2019aider le gestionnaire dans l\u2019estimation de cette variable. Les outils d\u2019estimation de la lumi\u00e8re sont divis\u00e9s en quatre cat\u00e9gories : l\u2019estimation par mesure directe du rayonnement (papier photosensible, capteurs) ; via l\u2019estimation de la fermeture du couvert (canopy-scope, densiom\u00e8tre, photographie h\u00e9misph\u00e9rique) ; via la reconstitution de la trajectoire solaire (horizontoscope, photographie h\u00e9misph\u00e9rique) ; et en s\u2019appuyant sur des mesures dendrom\u00e9triques. En conclusion, certains instruments sont d\u2019usage ais\u00e9 et permettent la comparaison de peuplements forestiers de structures contrast\u00e9es. L\u2019estimation locale du climat lumineux \u2013 par exemple dans une cellule o\u00f9 l\u2019on vise la r\u00e9g\u00e9n\u00e9ration naturelle \u2013 est donc tout \u00e0 fait possible et \u00e0 cet \u00e9gard, l\u2019utilisation du densiom\u00e8tre para\u00eet prometteuse.<\/p>","protected":false},"excerpt":{"rendered":"<p>La lumi\u00e8re, indispensable aux v\u00e9g\u00e9taux, est un facteur particuli\u00e8rement variable dans le temps et dans l\u2019espace et ses caract\u00e9ristiques sont difficiles \u00e0 \u00e9valuer. Son estimation est pourtant n\u00e9cessaire \u00e0 tous les stades de d\u00e9veloppement des peuplements. Lors des phases de renouvellement des peuplements, le dosage de la lumi\u00e8re est r\u00e9alis\u00e9 par le principal instrument de [&hellip;]<\/p>","protected":false},"featured_media":0,"template":"","categories":[49],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat - For\u00eat.Nature<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/foretnature.be\/en\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"La lumi\u00e8re, indispensable aux v\u00e9g\u00e9taux, est un facteur particuli\u00e8rement variable dans le temps et dans l\u2019espace et ses caract\u00e9ristiques sont difficiles \u00e0 \u00e9valuer. Son estimation est pourtant n\u00e9cessaire \u00e0 tous les stades de d\u00e9veloppement des peuplements. Lors des phases de renouvellement des peuplements, le dosage de la lumi\u00e8re est r\u00e9alis\u00e9 par le principal instrument de [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/foretnature.be\/en\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/\" \/>\n<meta property=\"og:site_name\" content=\"For\u00eat.Nature\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/\",\"url\":\"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/\",\"name\":\"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat - For\u00eat.Nature\",\"isPartOf\":{\"@id\":\"https:\/\/foretnature.be\/en\/#website\"},\"datePublished\":\"2024-10-23T14:41:09+00:00\",\"dateModified\":\"2024-10-23T14:41:09+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/foretnature.be\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/foretnature.be\/en\/#website\",\"url\":\"https:\/\/foretnature.be\/en\/\",\"name\":\"For\u00eat.Nature\",\"description\":\"Une \u00e9quipe technique au service de la for\u00eat\",\"publisher\":{\"@id\":\"https:\/\/foretnature.be\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/foretnature.be\/en\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/foretnature.be\/en\/#organization\",\"name\":\"For\u00eat.Nature\",\"url\":\"https:\/\/foretnature.be\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/foretnature.be\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/foretnature.be\/wp-content\/uploads\/2021\/01\/logoFOblanc.png\",\"contentUrl\":\"https:\/\/foretnature.be\/wp-content\/uploads\/2021\/01\/logoFOblanc.png\",\"width\":300,\"height\":151,\"caption\":\"For\u00eat.Nature\"},\"image\":{\"@id\":\"https:\/\/foretnature.be\/en\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat - For\u00eat.Nature","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/foretnature.be\/en\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/","og_locale":"en_GB","og_type":"article","og_title":"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat - For\u00eat.Nature","og_description":"La lumi\u00e8re, indispensable aux v\u00e9g\u00e9taux, est un facteur particuli\u00e8rement variable dans le temps et dans l\u2019espace et ses caract\u00e9ristiques sont difficiles \u00e0 \u00e9valuer. Son estimation est pourtant n\u00e9cessaire \u00e0 tous les stades de d\u00e9veloppement des peuplements. Lors des phases de renouvellement des peuplements, le dosage de la lumi\u00e8re est r\u00e9alis\u00e9 par le principal instrument de [&hellip;]","og_url":"https:\/\/foretnature.be\/en\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/","og_site_name":"For\u00eat.Nature","twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/","url":"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/","name":"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat - For\u00eat.Nature","isPartOf":{"@id":"https:\/\/foretnature.be\/en\/#website"},"datePublished":"2024-10-23T14:41:09+00:00","dateModified":"2024-10-23T14:41:09+00:00","breadcrumb":{"@id":"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/foretnature.be\/article-foret-nature\/des-outils-destimation-de-la-lumiere-en-foret\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/foretnature.be\/en\/"},{"@type":"ListItem","position":2,"name":"Des outils d\u2019estimation de la lumi\u00e8re en for\u00eat"}]},{"@type":"WebSite","@id":"https:\/\/foretnature.be\/en\/#website","url":"https:\/\/foretnature.be\/en\/","name":"For\u00eat.Nature","description":"Une \u00e9quipe technique au service de la for\u00eat","publisher":{"@id":"https:\/\/foretnature.be\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/foretnature.be\/en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/foretnature.be\/en\/#organization","name":"For\u00eat.Nature","url":"https:\/\/foretnature.be\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/foretnature.be\/en\/#\/schema\/logo\/image\/","url":"https:\/\/foretnature.be\/wp-content\/uploads\/2021\/01\/logoFOblanc.png","contentUrl":"https:\/\/foretnature.be\/wp-content\/uploads\/2021\/01\/logoFOblanc.png","width":300,"height":151,"caption":"For\u00eat.Nature"},"image":{"@id":"https:\/\/foretnature.be\/en\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/foretnature.be\/en\/wp-json\/wp\/v2\/article-foret-nature\/44199"}],"collection":[{"href":"https:\/\/foretnature.be\/en\/wp-json\/wp\/v2\/article-foret-nature"}],"about":[{"href":"https:\/\/foretnature.be\/en\/wp-json\/wp\/v2\/types\/article-foret-nature"}],"wp:attachment":[{"href":"https:\/\/foretnature.be\/en\/wp-json\/wp\/v2\/media?parent=44199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/foretnature.be\/en\/wp-json\/wp\/v2\/categories?post=44199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}