{"id":53748,"date":"2025-04-30T19:12:56","date_gmt":"2025-04-30T17:12:56","guid":{"rendered":"https:\/\/envol-vert.org\/filactu\/leaving-dead-wood-on-the-ground\/"},"modified":"2025-08-09T19:12:57","modified_gmt":"2025-08-09T17:12:57","slug":"leaving-dead-wood-on-the-ground","status":"publish","type":"fil_d_actu","link":"https:\/\/envol-vert.org\/en\/fd\/leaving-dead-wood-on-the-ground\/","title":{"rendered":"Leaving dead wood on the ground"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1040px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 sep-underline sep-solid fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top:1.5%;--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:0px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:16.8;--minFontSize:16.8;line-height:1.29;\"><div class=\"fusion-fa-align-left\"><i class=\"fb-icon-element-1 fb-icon-element fontawesome-icon fa-angle-double-right fas circle-no\" style=\"--awb-iconcolor:#ea773d;--awb-font-size:30px;--awb-margin-bottom:5%;\"><\/i><\/div>Leaving dead wood on the ground: a key action for forest biodiversity<\/h4><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-text fusion-text-1\"><p><span style=\"font-weight: 400;\">Sustainable forest management is essential for preserving biodiversity and ensuring the resilience of ecosystems in the face of climate change. <\/span><span style=\"font-weight: 400;\">In this process, taking dead wood on the ground into account plays a central role. <\/span><\/p>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-title title fusion-title-2 sep-underline sep-solid fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:0px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:16.8;--minFontSize:16.8;line-height:1.29;\"><div class=\"fusion-fa-align-left\"><i class=\"fb-icon-element-2 fb-icon-element fontawesome-icon fa-seedling fas circle-no\" style=\"--awb-iconcolor:#3aaa35;--awb-font-size:30px;--awb-margin-bottom:5%;\"><\/i><\/div>Dead wood, a treasure trove for biodiversity<\/h4><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-text fusion-text-2\"><p><span style=\"font-weight: 400;\">Dead wood (standing or on the ground) plays a key role in forest ecosystems, serving as a habitat and resource for many species:<\/span><\/p>\n<\/div><ul style=\"--awb-iconcolor:#ea773d;--awb-line-height:23.8px;--awb-icon-width:23.8px;--awb-icon-height:23.8px;--awb-icon-margin:9.8px;--awb-content-margin:33.6px;\" class=\"fusion-checklist fusion-checklist-1 fusion-checklist-default type-icons\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-angle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p><strong>Saproxylic fungi<\/strong> that decompose wood, enriching the soil.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-angle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p><strong>Xylophagous invertebrates <\/strong>(beetles, termites, etc.), which are a source of food for other animals.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-angle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p><strong>Cave-dwelling birds and bats<\/strong>, which use hollow trunks for nesting.<\/p>\n<\/div><\/li><\/ul><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-text fusion-text-3\"><p><span style=\"font-weight: 400;\">A large volume of dead wood is therefore often correlated with greater biological diversity.<\/span><\/p>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-title title fusion-title-3 sep-underline sep-solid fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:0px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:16.8;--minFontSize:16.8;line-height:1.29;\"><div class=\"fusion-fa-align-left\"><i class=\"fb-icon-element-3 fb-icon-element fontawesome-icon fa-seedling fas circle-no\" style=\"--awb-iconcolor:#3aaa35;--awb-font-size:30px;--awb-margin-bottom:5%;\"><\/i><\/div>The link with Envol Vert&#8217;s forest diagnostics<\/h4><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-text fusion-text-4\"><p><span style=\"font-weight: 400;\">As part of the SEVE project, Envol Vert carried out forest assessments with 20 landowners committed to sustainable management. These studies aim to support landowners in moving towards continuous cover forestry, which promotes species diversity and natural regeneration, while limiting the impact of human intervention. <\/span><\/p>\n<p><span style=\"font-weight: 400;\"> One of the key principles highlighted in these assessments is the importance of maintaining areas of free evolution (between 10 and 20% of the forest area is recommended), where nature can follow its own cycle without human intervention.<\/span><\/p>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-title title fusion-title-4 sep-underline sep-solid fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:0px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:16.8;--minFontSize:16.8;line-height:1.29;\"><div class=\"fusion-fa-align-left\"><i class=\"fb-icon-element-4 fb-icon-element fontawesome-icon fa-seedling fas circle-no\" style=\"--awb-iconcolor:#3aaa35;--awb-font-size:30px;--awb-margin-bottom:5%;\"><\/i><\/div>The index of biodiversity potential, a key assessment tool<\/h4><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-text fusion-text-5\"><p><span style=\"font-weight: 400;\">In order to assess the ecological richness of forests and the impact of management practices, Envol Vert uses the index of biodiversity potential. This tool measures the capacity of a forest stand to support a diversity of species based on criteria such as the presence of dead wood, species diversity, and the existence of old trees and microhabitats. <\/span><span style=\"font-weight: 400;\">A high IBP indicates a forest offering optimal conditions for fauna and flora, highlighting the importance of maintaining dead wood and areas of free evolution.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Analysis of the IBP according to forest diagnostics reveals an overall average IPB of<\/span> <span style=\"font-weight: 400;\">14, with the lowest IBP in the diagnostics at 3 and the highest IBP at 23.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As the overall score is out of a maximum of 50, the score is not considered high, but the overall potential for ecosystem development remains high. <\/span><\/p>\n<\/div><div class=\"fusion-video fusion-youtube\" style=\"--awb-max-width:600px;--awb-max-height:360px;--awb-align-self:center;--awb-width:100%;\"><div class=\"video-shortcode\"><div class=\"fluid-width-video-wrapper\" style=\"padding-top:60%;\" ><iframe title=\"YouTube video player 1\" src=\"https:\/\/www.youtube.com\/embed\/Ue3WoJlDFUI?wmode=transparent&autoplay=0\" width=\"600\" height=\"360\" allowfullscreen allow=\"autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture;\"><\/iframe><\/div><\/div><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-title title fusion-title-5 sep-underline sep-solid fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:0px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:16.8;--minFontSize:16.8;line-height:1.29;\"><div class=\"fusion-fa-align-left\"><i class=\"fb-icon-element-5 fb-icon-element fontawesome-icon fa-seedling fas circle-no\" style=\"--awb-iconcolor:#3aaa35;--awb-font-size:30px;--awb-margin-bottom:5%;\"><\/i><\/div>Why encourage natural evolution and dead wood?<\/h4><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-text fusion-text-6\"><p><span style=\"font-weight: 400;\">Areas of free evolution allow us to observe how the forest functions naturally and maintain a stock of dead wood that is essential for fauna and flora. This approach offers many benefits: <\/span><\/p>\n<\/div><ul style=\"--awb-iconcolor:#ea773d;--awb-line-height:23.8px;--awb-icon-width:23.8px;--awb-icon-height:23.8px;--awb-icon-margin:9.8px;--awb-content-margin:33.6px;\" class=\"fusion-checklist fusion-checklist-2 fusion-checklist-default type-icons\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-angle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p><strong>Promoting biodiversity: <\/strong>many rare and protected species can only survive in forests where dead wood is present. Plum woodpeckers are only present when decomposing wood reaches a certain size (70 cm in diameter), increasing soil nitrogen fertility threefold.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-angle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p><strong>Improving soil fertility:<\/strong> as it decays, dead wood gradually releases nutrients that are essential for the development of young trees.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-angle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p><strong>Increasing forest resilience:<\/strong> diverse forests rich in microhabitats are more resistant to climate hazards and disease.<\/p>\n<\/div><\/li><\/ul><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-title title fusion-title-6 sep-underline sep-solid fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:0px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:16.8;--minFontSize:16.8;line-height:1.29;\"><div class=\"fusion-fa-align-left\"><i class=\"fb-icon-element-6 fb-icon-element fontawesome-icon fa-seedling fas circle-no\" style=\"--awb-iconcolor:#3aaa35;--awb-font-size:30px;--awb-margin-bottom:5%;\"><\/i><\/div>Conference on dead wood<\/h4><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:1.5%;margin-bottom:1.5%;width:100%;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:rgba(224,222,222,0);border-color:rgba(224,222,222,0);border-top-width:1px;\"><\/div><\/div><div class=\"fusion-text fusion-text-7\"><p><span style=\"font-weight: 400;\">At the conference on dead wood in forests organized by the <a href=\"https:\/\/www.parc-haut-languedoc.fr\/\" target=\"_blank\" rel=\"noopener\">Haut Languedoc Regional Nature Park<\/a>, speakers highlighted these dendrometric principles based on old forests that no longer exist in the Tarn region.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Historically, dead wood has often been perceived as a sign of poor management or an increased risk of fire. However, studies show that in temperate forests, its presence does not significantly increase the risk of fire and that, on the contrary, it is a key element in the proper ecological functioning of forest environments. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Massive logging by humans in the Middle Ages accelerated the rejuvenation and decline of French forests. According to Nicolas Gouix, in 2025, nearly 79% of the forest population will be less than 100 years old. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Envol Vert&#8217;s message therefore remains focused on the conservation of natural areas so that old forests can be restored in France in the future. This is the view of Ga\u00ebtan Dubus, who explains that we are cutting this regeneration cycle far too early, for some trees at 280 years old, when we should be leaving them for at least 600 years, favoring targeted harvesting areas. <\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":53360,"template":"","fils_d_actu_categ":[1655,2043],"class_list":["post-53748","fil_d_actu","type-fil_d_actu","status-publish","has-post-thumbnail","hentry","fils_d_actu_categ-news","fils_d_actu_categ-seve-project"],"_links":{"self":[{"href":"https:\/\/envol-vert.org\/en\/wp-json\/wp\/v2\/fil_d_actu\/53748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/envol-vert.org\/en\/wp-json\/wp\/v2\/fil_d_actu"}],"about":[{"href":"https:\/\/envol-vert.org\/en\/wp-json\/wp\/v2\/types\/fil_d_actu"}],"version-history":[{"count":0,"href":"https:\/\/envol-vert.org\/en\/wp-json\/wp\/v2\/fil_d_actu\/53748\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/envol-vert.org\/en\/wp-json\/wp\/v2\/media\/53360"}],"wp:attachment":[{"href":"https:\/\/envol-vert.org\/en\/wp-json\/wp\/v2\/media?parent=53748"}],"wp:term":[{"taxonomy":"fils_d_actu_categ","embeddable":true,"href":"https:\/\/envol-vert.org\/en\/wp-json\/wp\/v2\/fils_d_actu_categ?post=53748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}