{"id":34676,"date":"2021-09-10T13:54:09","date_gmt":"2021-09-10T11:54:09","guid":{"rendered":"https:\/\/foretnature.be\/article-foret-nature\/vingt-ans-de-mesures-des-echanges-de-co2-et-de-vapeur-deau-a-lobservatoire-terrestre-de-vielsalm\/"},"modified":"2024-10-24T10:27:33","modified_gmt":"2024-10-24T08:27:33","slug":"vingt-ans-de-mesures-des-echanges-de-co2-et-de-vapeur-deau-a-lobservatoire-terrestre-de-vielsalm","status":"publish","type":"article-foret-nature","link":"https:\/\/foretnature.be\/en\/article-foret-nature\/vingt-ans-de-mesures-des-echanges-de-co2-et-de-vapeur-deau-a-lobservatoire-terrestre-de-vielsalm\/","title":{"rendered":"Vingt ans de mesures des \u00e9changes de CO2 et de vapeur d\u2019eau \u00e0 l\u2019Observatoire Terrestre de Vielsalm"},"content":{"rendered":"<p>La s\u00e9questration du carbone via l\u2019assimilation nette de CO2 par les \u00e9cosyst\u00e8mes terrestres varie fortement d\u2019une ann\u00e9e \u00e0 l\u2019autre. La compr\u00e9hension plus fine de ce ph\u00e9nom\u00e8ne est n\u00e9cessaire pour pouvoir pr\u00e9dire si les \u00e9cosyst\u00e8mes continueront \u00e0 se comporter comme des puits de carbone ou si la s\u00e9questration va diminuer voire s\u2019inverser compl\u00e8tement, transformant les \u00e9cosyst\u00e8mes en source de carbone. Pour mesurer les \u00e9changes nets de CO2, les chercheurs ont notamment install\u00e9 un \u00ab\u202fObservatoire Terrestre\u202f\u00bb dans une for\u00eat \u00e0 Vielsalm qui a permis de mettre en \u00e9vidence les dynamiques journali\u00e8re, saisonni\u00e8re et interannuelle de la s\u00e9questration du carbone. La mesure simultan\u00e9e de l\u2019\u00e9vapotranspiration r\u00e9elle permet de plus d\u2019\u00e9valuer la consommation en eau des esp\u00e8ces pr\u00e9sentes. Les mesures effectu\u00e9es durant 20\u202fans montrent que la for\u00eat se comporte comme un puits de carbone.<\/p>","protected":false},"excerpt":{"rendered":"<p>La s\u00e9questration du carbone via l\u2019assimilation nette de CO2 par les \u00e9cosyst\u00e8mes terrestres varie fortement d\u2019une ann\u00e9e \u00e0 l\u2019autre. La compr\u00e9hension plus fine de ce ph\u00e9nom\u00e8ne est n\u00e9cessaire pour pouvoir pr\u00e9dire si les \u00e9cosyst\u00e8mes continueront \u00e0 se comporter comme des puits de carbone ou si la s\u00e9questration va diminuer voire s\u2019inverser compl\u00e8tement, transformant les \u00e9cosyst\u00e8mes [&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>Vingt ans de mesures des \u00e9changes de CO2 et de vapeur d\u2019eau \u00e0 l\u2019Observatoire Terrestre de Vielsalm - 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\/vingt-ans-de-mesures-des-echanges-de-co2-et-de-vapeur-deau-a-lobservatoire-terrestre-de-vielsalm\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vingt ans de mesures des \u00e9changes de CO2 et de vapeur d\u2019eau \u00e0 l\u2019Observatoire Terrestre de Vielsalm - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"La s\u00e9questration du carbone via l\u2019assimilation nette de CO2 par les \u00e9cosyst\u00e8mes terrestres varie fortement d\u2019une ann\u00e9e \u00e0 l\u2019autre. 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