{"id":11768,"date":"2026-05-06T15:33:34","date_gmt":"2026-05-06T13:33:34","guid":{"rendered":"https:\/\/holosem.ch\/les-semences-regionales-permettent-de-restaurer-avec-succes-la-diversite-vegetale-dans-les-prairies\/"},"modified":"2026-05-11T11:27:11","modified_gmt":"2026-05-11T09:27:11","slug":"les-semences-regionales-permettent-de-restaurer-avec-succes-la-diversite-vegetale-dans-les-prairies","status":"publish","type":"post","link":"https:\/\/holosem.ch\/fr\/les-semences-regionales-permettent-de-restaurer-avec-succes-la-diversite-vegetale-dans-les-prairies\/","title":{"rendered":"Nouvelle \u00e9tude : les semences r\u00e9gionales permettent de restaurer avec succ\u00e8s la diversit\u00e9 v\u00e9g\u00e9tale dans les prairies"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Pour augmenter la biodiversit\u00e9 des prairies, une gestion extensive ne suffit g\u00e9n\u00e9ralement pas. En effet, les esp\u00e8ces v\u00e9g\u00e9tales disparues ne migrent pas d&rsquo;elles-m\u00eames si elles ne sont plus pr\u00e9sentes dans l&rsquo;environnement proche.  Elles doivent donc \u00eatre introduites activement par le biais de semences riches en esp\u00e8ces.  <br\/><br\/>Une nouvelle \u00e9tude de l&rsquo;Universit\u00e9 de Berne, \u00e0 laquelle a particip\u00e9 Daniel Slodowicz de HoloSem, montre que l&rsquo;ensemencement de semences r\u00e9gionales ou le transfert de foin provenant de prairies riches en esp\u00e8ces permet de restaurer avec succ\u00e8s et de mani\u00e8re durable au moins une partie de la biodiversit\u00e9. Apr\u00e8s quatre ans, le niveau de qualit\u00e9 II botanique, c&rsquo;est-\u00e0-dire au moins 6 esp\u00e8ces indicatrices de qualit\u00e9, a pu \u00eatre atteint sur environ 90% des parcelles.  Le nombre de ces esp\u00e8ces a doubl\u00e9 ou tripl\u00e9 par rapport \u00e0 l&rsquo;\u00e9tat initial gr\u00e2ce aux ensemencements.  <br\/><br\/>Les prairies restaur\u00e9es \u00e0 l&rsquo;aide de semences provenant de prairies sources, soit sous forme de foin, soit sous forme de brulage de foin, ont \u00e9galement montr\u00e9 une plus grande stabilit\u00e9 que les ensemencements avec des semences de multiplication. Cela s&rsquo;explique probablement par le fait que les esp\u00e8ces issues de parcelles sources situ\u00e9es \u00e0 proximit\u00e9 \u00e9taient g\u00e9n\u00e9tiquement mieux adapt\u00e9es aux conditions environnementales sp\u00e9cifiques du site. <\/p>\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-0aa01211 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/holosem.ch\/wp-content\/uploads\/2026\/03\/Forgione-et-al-2026-AGEE.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Lire l&rsquo;article [en anglais]<\/a><\/div>\n<\/div>\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1440\" height=\"1080\" data-id=\"11793\" src=\"https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_vorher_2018_beschr-1440x1080.jpg\" alt=\"\" class=\"wp-image-11793\" srcset=\"https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_vorher_2018_beschr-1440x1080.jpg 1440w, https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_vorher_2018_beschr-768x576.jpg 768w, https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_vorher_2018_beschr-1536x1152.jpg 1536w, https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_vorher_2018_beschr.jpg 1920w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1440\" height=\"1080\" data-id=\"11792\" src=\"https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_nachher_2021_beschr-1-1440x1080.jpg\" alt=\"\" class=\"wp-image-11792\" srcset=\"https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_nachher_2021_beschr-1-1440x1080.jpg 1440w, https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_nachher_2021_beschr-1-768x576.jpg 768w, https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_nachher_2021_beschr-1-1536x1152.jpg 1536w, https:\/\/holosem.ch\/wp-content\/uploads\/2026\/05\/Paper_nachher_2021_beschr-1.jpg 1920w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/><\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Une \u00e9tude montre que l&rsquo;ensemencement de semences r\u00e9gionales et de foin provenant de prairies riches en esp\u00e8ces peut augmenter significativement la biodiversit\u00e9 dans les prairies, de mani\u00e8re plus stable que les semences de multiplication.<\/p>\n","protected":false},"author":10,"featured_media":11788,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"queryLoopSortOrder":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[13],"tags":[],"class_list":["post-11768","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nouvelle \u00e9tude : les semences r\u00e9gionales permettent de restaurer avec succ\u00e8s la diversit\u00e9 v\u00e9g\u00e9tale dans les prairies - HoloSem Saatgut &amp; 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