{"id":23049,"date":"2014-06-26T06:00:26","date_gmt":"2014-06-25T23:00:26","guid":{"rendered":"http:\/\/www.forestsnews.org\/?p=23049"},"modified":"2015-10-08T10:45:01","modified_gmt":"2015-10-08T03:45:01","slug":"un-projet-vise-a-reveler-les-mysteres-des-tourbieres-du-perou","status":"publish","type":"post","link":"https:\/\/www.forestsnews.org\/fr\/23049\/un-projet-vise-a-reveler-les-mysteres-des-tourbieres-du-perou","title":{"rendered":"Un projet pour r\u00e9v\u00e9ler les myst\u00e8res des tourbi\u00e8res du P\u00e9rou"},"content":{"rendered":"<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/BbwOFhQNBSU?rel=0\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><em><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Note de la r\u00e9daction: Ceci est le premier article d&rsquo;une s\u00e9rie en trois parties au sujet de la recherche du CIFOR sur les marais de palmiers au P\u00e9rou.<\/span><\/span><\/span><\/em><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">IQUITOS, P\u00e9rou \u2014 Sur une petite table dans un march\u00e9 anim\u00e9 et bruyant, Ana R\u00edos Ruiz verse un jus \u00e9pais, jaune, dans une tasse et le sert \u00e0 un client. Apr\u00e8s avoir encaiss\u00e9 quelques pi\u00e8ces de monnaie, elle se retourne vers un bol en plastique rempli d&rsquo;une p\u00e2te jaune tachet\u00e9e de brun.<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">\u00abNous mangeons beaucoup d\u2019aguaje ici\u00bb, dit-elle, en utilisant le nom local pour le fruit, qui est mang\u00e9 cru ou transform\u00e9 en produits vari\u00e9s allant de jus \u00e0 la cr\u00e8me glac\u00e9e. \u00ab Gr\u00e2ce \u00e0 l\u2019aguaje, je suis en mesure de subvenir aux besoins de mes enfants. \u00bb <div class='short-quote'>\n\t\t\t<blockquote>\n\t\t\t\t<p><\/p>\n\t\t\t\t<footer>\n\t\t\t\t\t<cite title='Source Title'><\/cite>\n\t\t\t\t<\/footer>\n\t\t\t<\/blockquote>\n\t\t<\/div><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Aguaje est le fruit du palmier Mauritia flexuosa, qui pousse dans toute l&rsquo;Amazonie p\u00e9ruvienne dans les marais appel\u00e9s aguajales. Toutefois, ces marais sont menac\u00e9s par le d\u00e9veloppement. Celui-ci peut aboutir \u00e0 une lib\u00e9ration de grandes quantit\u00e9s de gaz \u00e0 effet de serre contribuant au r\u00e9chauffement climatique, selon la scientifique Kristell Hergoualc&rsquo;h du Programme For\u00eats et Environnement au Centre de Recherche Foresti\u00e8re Internationale (CIFOR). <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Elle soutient que l\u2019am\u00e9lioration de la conservation et gestion de ces zones humides de l&rsquo;Amazonie pourrait b\u00e9n\u00e9ficier \u00e0 la fois au climat et \u00e0 des milliers de personnes, telles que Mme R\u00edos, dont la subsistance d\u00e9pend de ce fruit. <\/span><\/span><\/span><\/p>\n<h4><strong><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">MARAIS DE PALMIERS SOUS PRESSION<\/span><\/span><\/span><\/strong><\/h4>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Les marais de palmiers du P\u00e9rou sont importants non seulement \u00e0 cause du fruit <\/span><span lang=\"fr-FR\"><i>aguaje<\/i><\/span><span lang=\"fr-FR\">, mais aussi parce que certains contiennent de la tourbe, une couche organique de feuilles, de brindilles et d\u2019autres mati\u00e8res v\u00e9g\u00e9tales d\u00e9compos\u00e9es s&rsquo;accumulant sous l&rsquo;eau pendant des milliers d&rsquo;ann\u00e9es. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">\u00ab Le P\u00e9rou abrite la deuxi\u00e8me plus grande \u00e9tendue de tourbi\u00e8res des r\u00e9gions tropicales, apr\u00e8s l&rsquo;Indon\u00e9sie. Les tourbi\u00e8res p\u00e9ruviennes stockent des quantit\u00e9s consid\u00e9rables de carbone. Cependant, si elles sont d\u00e9grad\u00e9es, d\u00e9bois\u00e9es ou ass\u00e9ch\u00e9es, au lieu d&rsquo;\u00eatre un puits de carbone, elles peuvent devenir une source de dioxyde de carbone\u00bb, explique Mme Hergoualc&rsquo;h. Elle dirige une \u00e9quipe du CIFOR \u00e9tudiant les tourbi\u00e8res de l&rsquo;Amazonie dans le cadre du <\/span><\/span><\/span><span style=\"color: #000080;\"><span lang=\"zxx\"><span style=\"text-decoration: underline;\"><a class=\"western\" href=\"\/\/www.cifor.org\/swamp\/home.html?_ga=1.36429284.578506060.1384270572\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Programme d\u2019Adaptation et d\u2019Att\u00e9nuation Durables des Zones Humides<\/span><\/span><\/span><\/a><\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\"> (SWAMP), en collaboration avec le Service des For\u00eats des \u00c9tats-Unis et l&rsquo;Institut de Recherche de l\u2019Amazonie P\u00e9ruvienne (Instituto de Investigaciones de la Amazon\u00eda Peruana, ou IIAP). Les marais purifient \u00e9galement l&rsquo;eau et fournissent un habitat de reproduction pour les poissons, tandis que de nombreux mammif\u00e8res se nourrissent du fruit du palmier, selon Dennis del Castillo. Il dirige le programme de recherche sur la gestion des for\u00eats et les services environnementaux (<\/span><\/span><\/span><span style=\"color: #000080;\"><span lang=\"zxx\"><span style=\"text-decoration: underline;\"><a class=\"western\" href=\"http:\/\/www.iiap.org.pe\/Programas\/probosques.htm\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">PROBOSQUES<\/span><\/span><\/span><\/a><\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">) de l\u2019IIAP \u00e0 Iquitos. <div class='short-quote'>\n\t\t\t<blockquote>\n\t\t\t\t<p><\/p>\n\t\t\t\t<footer>\n\t\t\t\t\t<cite title='Source Title'><\/cite>\n\t\t\t\t<\/footer>\n\t\t\t<\/blockquote>\n\t\t<\/div><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Les <\/span><span lang=\"fr-FR\"><i>aguajales<\/i><\/span><span lang=\"fr-FR\"> du P\u00e9rou sont menac\u00e9s par le d\u00e9veloppement, l&rsquo;agriculture et m\u00eame les personnes r\u00e9coltant les fruits. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Lorsque les palmiers atteignent une hauteur qui place leurs fruits hors de port\u00e9e, la plupart des exploitants coupent tout simplement l&rsquo;arbre; c\u2019est plus rapide et plus facile que de grimper et de couper les bouquets suspendus d\u2019aguaje, selon M. del Castillo.<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">La coupe des palmiers, combin\u00e9e \u00e0 l&rsquo;exploitation foresti\u00e8re des essences de bois dans les marais, peut changer le microclimat du marais, en le dess\u00e9chant et en aggravant la d\u00e9gradation, affirme Mme Hergoualc&rsquo;h. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">\u00ab Si le couvert forestier est enlev\u00e9, le soleil p\u00e9n\u00e8tre davantage; la temp\u00e9rature de l&rsquo;air, la temp\u00e9rature du sol ainsi que l&rsquo;humidit\u00e9 du sol changent; l&rsquo;\u00e9vaporation augmente \u00bb, dit-elle. \u00ab Donc, les conditions propices de l&rsquo;\u00e9cosyst\u00e8me aux inondations sont r\u00e9duites. \u00bb <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Du moment que la couche de tourbe, partiellement d\u00e9compos\u00e9e, demeure sous l&rsquo;eau, le carbone y reste enferm\u00e9. Si le marais s\u2019ass\u00e8che ou s\u2019\u00e9coule et que la tourbe est expos\u00e9e \u00e0 l&rsquo;air, la d\u00e9composition est toutefois acc\u00e9l\u00e9r\u00e9e, en lib\u00e9rant de grandes quantit\u00e9s de dioxyde de carbone, ce qui contribue au d\u00e9r\u00e8glement climatique. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Dans diverses parties de l&rsquo;Amazonie p\u00e9ruvienne, les marais de palmiers ont \u00e9t\u00e9 d\u00e9frich\u00e9s, drain\u00e9s et transform\u00e9s en rizi\u00e8res ou en plantations de palmiers \u00e0 huile, d\u00e9clare M. del Castillo.<\/span><\/span><\/span><\/p>\n<h4><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\"><b>LE CASSE-T\u00caTE DES TOURBI\u00c8RES AU P\u00c9ROU<\/b><\/span><\/span><\/span><\/h4>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Les chercheurs du projet SWAMP esp\u00e8rent que leurs travaux aideront les responsables du gouvernement p\u00e9ruvien \u00e0 pr\u00e9voir des mesures de conservation plus efficaces pour les marais de palmiers. N\u00e9anmoins, diverses questions doivent \u00eatre abord\u00e9es dans un premier temps. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">D&rsquo;une part, les tourbi\u00e8res du P\u00e9rou sont une sorte un myst\u00e8re. On estime qu\u2019elles couvrent 50 000 kilom\u00e8tres carr\u00e9s, une superficie presque aussi grande que le Costa Rica, mais le chiffre r\u00e9el pourrait \u00eatre plus \u00e9lev\u00e9. Personne ne le sait avec certitude, car aucun recensement fiable existe, selon Mme Hergoualc&rsquo;h.<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Pour compliquer les choses, tous les marais de palmiers ne contiennent pas de tourbe et les scientifiques ne sont pas s\u00fbrs se savoir lesquels en contiennent, ni pourquoi. Mme Hergoualc&rsquo;h d\u00e9bute l&rsquo;\u00e9tude au P\u00e9rou par une analyse des marais dans les r\u00e9gions Loreto et Ucayali, afin d\u2019en s\u00e9lectionner environ deux douzaines, certains intacts et certains d\u00e9grad\u00e9s, qui contiennent de la tourbe. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Elle et ses coll\u00e8gues vont ensuite calculer le carbone contenu dans la v\u00e9g\u00e9tation de surface et dans la couche de tourbe submerg\u00e9e d\u2019eau, ainsi que les \u00e9missions de gaz \u00e0 effet de serre provenant du sol. <div class='short-quote'>\n\t\t\t<blockquote>\n\t\t\t\t<p><\/p>\n\t\t\t\t<footer>\n\t\t\t\t\t<cite title='Source Title'><\/cite>\n\t\t\t\t<\/footer>\n\t\t\t<\/blockquote>\n\t\t<\/div><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Ces donn\u00e9es, combin\u00e9es au d\u00e9veloppement des techniques de surveillance satellitaire des tourbi\u00e8res, donneront aux d\u00e9cideurs politiques plus d&rsquo;outils pour se conformer aux trait\u00e9s internationaux sur le changement climatique et pour faire le suivi du programme de R\u00e9duction des Emissions issues de la D\u00e9forestation et la D\u00e9gradation des for\u00eats (REDD+) soutenu par l&rsquo;ONU, d\u00e9clare-t-elle.<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Les donn\u00e9es fourniront \u00e9galement une aide \u00e0 l&rsquo;\u00e9laboration de politiques visant \u00e0 am\u00e9liorer la conservation et la gestion des marais de palmiers, d\u00e9clare M. del Castillo. Son centre de recherche d\u00e9veloppe une vari\u00e9t\u00e9 de palmier <\/span><span lang=\"fr-FR\"><i>aguaje<\/i><\/span><span lang=\"fr-FR\"> \u00e0 croissance lente pour faciliter aux exploitants la r\u00e9colte des fruits sans couper les arbres. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">Il ajoute que, en attendant, les responsables devraient encourager les exploitants \u00e0 grimper sur les palmiers et \u00e0 couper les fruits, au lieu d&rsquo;abattre les arbres. Les responsables devraient \u00e9galement peser les avantages \u00e9cologiques des aguajales et tourbi\u00e8res contre d&rsquo;autres utilisations des terres, telles que l\u2019agriculture ou les plantations de palmiers \u00e0 huile, dit-il. <\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">\u00ab Nous devons conserver les aguajales non seulement pour leur propre int\u00e9r\u00eat, mais parce qu&rsquo;ils jouent un r\u00f4le \u00e9cologique, \u00e9conomique et social extr\u00eamement important \u00bb, d\u00e9clare M. del Castillo. \u00abLes d\u00e9cideurs politiques et les personnes du secteur priv\u00e9 doivent comprendre que la conservation d&rsquo;un <\/span><span lang=\"fr-FR\"><i>aguajal<\/i><\/span><span lang=\"fr-FR\"> peut avoir un meilleur sens \u00e9conomique que la plantation de palmiers \u00e0 huile.\u00bb<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\"><i><b>Pour plus d&rsquo;informations sur les sujets abord\u00e9s dans cet article, veuillez contacter Kristell Hergoualc\u2019h sur<\/b><\/i><em><b> <\/b><\/em><\/span><\/span><\/span><strong><em><span style=\"color: #000080;\"><span lang=\"zxx\"><span style=\"text-decoration: underline;\"><a class=\"western\" href=\"mailto:k.hergoualch@cgiar.org\"><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">k.hergoualch@cgiar.org<\/span><\/span><\/span><\/a><\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\"><span lang=\"fr-FR\">.  <\/span><\/span><\/span><\/em><\/strong><\/p>\n<p lang=\"fr-FR\"><em><span style=\"color: #000000;\"><span style=\"font-family: Tahoma, sans-serif;\">La recherche du CIFOR sur les for\u00eats et la nutrition s\u2019inscrit dans le cadre du Programme du CGIAR sur les For\u00eats, les Arbres et l&rsquo;Agroforesterie. Le projet SWAMP est appuy\u00e9 par un financement de l&rsquo;Agence Am\u00e9ricaine pour le D\u00e9veloppement International (USAID).<\/span><\/span><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Note de la r\u00e9daction: Ceci est le premier article d&rsquo;une s\u00e9rie en trois parties au sujet de la recherche du CIFOR sur les marais de palmiers au P\u00e9rou. IQUITOS, P\u00e9rou \u2014 Sur une petite table dans un march\u00e9 anim\u00e9 et bruyant, Ana R\u00edos Ruiz verse un jus \u00e9pais, jaune, dans une tasse et le sert [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":21693,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_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":[462,13,190],"tags":[],"language":[2170],"location":[12229],"tag-bahasa":[],"tag-espanol":[],"tag-francais":[3115,3694,3688,3203,3696,3695,12351,3081,3172,3254,3196,3078,3252,3403],"type-espanol":[],"type-bahasa":[],"type-english":[],"type-francais":[3000],"coauthors":[831],"class_list":["post-23049","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-climate-change-energy","category-governance","category-peatlands","language-francais","location-peru","tag-francais-aliments-forestiers","tag-francais-amazonie","tag-francais-amerique-latine","tag-francais-degradation","tag-francais-dennis-del-castillo","tag-francais-institut-de-recherche-de-lamazonie-peruvienne","tag-francais-kristell-hergoualch","tag-francais-milieux-humides","tag-francais-moyens-de-subsistance","tag-francais-perou","tag-francais-redd","tag-francais-stocks-de-carbone","tag-francais-swamp","tag-francais-tourbieres","type-francais-nouvelles"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Un projet pour r\u00e9v\u00e9ler les myst\u00e8res des tourbi\u00e8res du P\u00e9rou - Landscape Alliance Forests News<\/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:\/\/www.forestsnews.org\/fr\/23049\/un-projet-vise-a-reveler-les-mysteres-des-tourbieres-du-perou\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un projet pour r\u00e9v\u00e9ler les myst\u00e8res des tourbi\u00e8res du P\u00e9rou\" \/>\n<meta property=\"og:description\" content=\"Note de la r\u00e9daction: Ceci est le premier article d&rsquo;une s\u00e9rie en trois parties au sujet de la recherche du CIFOR sur les marais de palmiers au P\u00e9rou. 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