{"id":54021,"date":"2025-09-03T00:15:58","date_gmt":"2025-09-03T00:15:58","guid":{"rendered":"https:\/\/www.worldof8billion.org\/?p=54021"},"modified":"2026-10-12T15:38:04","modified_gmt":"2026-10-12T15:38:04","slug":"wetlands","status":"publish","type":"post","link":"https:\/\/www.worldof8billion.org\/fr\/wetlands\/","title":{"rendered":"Les zones humides : une introduction"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Les zones humides sont des zones de terre satur\u00e9es d'eau. Il existe <\/span><a href=\"https:\/\/www.worldwildlife.org\/news\/stories\/the-most-comprehensive-mapping-to-date-of-the-worlds-wetlands\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">33 types diff\u00e9rents de zones humides<\/span><\/a><span style=\"font-weight: 400;\"> Dans le monde entier, on trouve des zones humides comprenant des fleuves, des marais, des mar\u00e9cages, des tourbi\u00e8res, des r\u00e9cifs coralliens, des mangroves et bien d'autres encore. Les zones humides peuvent \u00eatre permanentes ou temporaires, naturelles ou artificielles, et peuvent contenir de l'eau courante ou stagnante.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bien que les zones humides ne repr\u00e9sentent que 6% de la surface terrestre de la plan\u00e8te, elles offrent des habitats importants pour la faune sauvage, qui y trouvent leur foyer. <\/span><a href=\"https:\/\/www.un.org\/en\/observances\/world-wetlands-day\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">40% esp\u00e8ces de plantes et d'animaux<\/span><\/a><span style=\"font-weight: 400;\"> dans le monde entier. Ces esp\u00e8ces \u00e0 grande diversit\u00e9 biologique se r\u00e9partissent entre les esp\u00e8ces menac\u00e9es comme la petite grenouille \u00e0 nid en bulle (<\/span><a href=\"https:\/\/www.iucnredlist.org\/species\/61890\/47152824#geographic-range\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\">Gracixalus supercornutus<\/span><\/i><\/a><span style=\"font-weight: 400;\">) qui se trouve au Vietnam est une esp\u00e8ce en voie de disparition (<\/span><a href=\"https:\/\/www.iucnredlist.org\/species\/65064999\/65065002#geographic-range\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\">Calophyllum africanum<\/span><\/i><\/a><span style=\"font-weight: 400;\">) qui vit au Mali.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les zones humides fournissent de nombreux services \u00e9cosyst\u00e9miques et contribuent \u00e9galement \u00e0 lutter contre le changement climatique. Certains scientifiques affirment que, par rapport aux for\u00eats tropicales, les zones humides sont les v\u00e9ritables \u201c\u00a0ressources naturelles\u00a0\u00bb\u00a0.\u201c<\/span><a href=\"https:\/\/www.wwt.org.uk\/our-work\/threats-to-wetlands\/climate-change-and-wetlands\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Les poumons du plan\u00e8te<\/span><\/a><span style=\"font-weight: 400;\">\u201d depuis qu\u2019ils se sont s\u00e9questr\u00e9s <\/span><a href=\"https:\/\/www.greenpeace.org.uk\/news\/wetlands-biodiversity-climate-change\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">50 fois plus de carbone<\/span><\/a><span style=\"font-weight: 400;\">, Les zones humides permettent de faire cro\u00eetre les plantes plus rapidement et de les maintenir stables pendant de longues p\u00e9riodes lorsque l\u2019on les laisse intactes. De plus, elles apportent des avantages tels que le filtrage des polluants et la pr\u00e9vention des inondations soudaines dans les communaut\u00e9s riveraines.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">De nombreuses communaut\u00e9s d\u00e9pendent des zones humides pour maintenir leurs liens sociaux et culturels avec la terre. Plusieurs groupes autochtones, tels que les peuples autochtones d'Australie, consid\u00e8rent les zones humides comme <\/span><a href=\"https:\/\/www.dcceew.gov.au\/sites\/default\/files\/documents\/factsheet-wetlands-indigenous-values.pdf\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Sites du patrimoine culturel<\/span><\/a><span style=\"font-weight: 400;\"> et d\u00e9pendent de la terre pour chasser et collecter des aliments. De plus, les zones humides constituent un lieu id\u00e9al pour les activit\u00e9s r\u00e9cr\u00e9atives, et les \u00c9tats-Unis ont enregistr\u00e9 un record de d\u00e9penses en mati\u00e8re de loisirs. <\/span><a href=\"https:\/\/wildlife.org\/usfws-expands-hunting-phases-out-lead-ammunition-at-specified-refuges\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">$394 milliards<\/span><\/a><span style=\"font-weight: 400;\"> sur les activit\u00e9s r\u00e9cr\u00e9atives dans les zones humides en 2022.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Malgr\u00e9 leur importance, les zones humides sont souvent laiss\u00e9es sans protection. Elles sont consid\u00e9r\u00e9es comme d\u00e9pourvues de valeur car elles peuvent servir de lieu de reproduction pour les moustiques et d'autres parasites, ainsi que des obstacles \u00e0 la circulation et au d\u00e9veloppement. <\/span><a href=\"https:\/\/water.usgs.gov\/nwsum\/WSP2425\/history.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">103 millions d'acres<\/span><\/a><span style=\"font-weight: 400;\"> Entre les ann\u00e9es 1600 et les ann\u00e9es 1980, des zones humides ont \u00e9t\u00e9 d\u00e9truites en raison de l'expansion des colonies europ\u00e9ennes aux \u00c9tats-Unis.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alors que la population humaine continue de cro\u00eetre, la n\u00e9cessit\u00e9 de logements, de nourriture et de carburant augmente \u00e9galement. La construction de maisons c\u00f4ti\u00e8res, la cr\u00e9ation de plus de terres agricoles et l\u2019exploitation mini\u00e8re de combustibles restent prioritaires par rapport \u00e0 la protection des zones humides. Cela conduit \u00e0 l\u2019excavation et \u00e0 l\u2019ass\u00e8chement des zones humides, entra\u00eenant une perte de services \u00e9cosyst\u00e9miques, de valeurs sociales et culturelles et de biodiversit\u00e9. Au cours des derni\u00e8res d\u00e9cennies, les gouvernements, aux niveaux local et mondial, ont adopt\u00e9 des lois pour prot\u00e9ger les zones humides, mais il reste encore beaucoup \u00e0 faire.<\/span><\/p>\n<p><!--a=1--><\/p>\n<p><!--a=1--><\/p>\n<p><!--a=1--><\/p>\n<p><!--a=1--><\/p>\n<p><!--a=1--><\/p>\n<p><!--a=1--><\/p>\n<p><!--a=1--><\/p>\n<p><!--a=1--><\/p>","protected":false},"excerpt":{"rendered":"<p>Wetlands are areas of land saturated with water. There are 33 different types of wetlands worldwide that include rivers, swamps,&#8230;<\/p>","protected":false},"author":12,"featured_media":54062,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[131],"tags":[],"class_list":["post-54021","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-contest-updates"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Wetlands: An Introduction - World of 8 Billion<\/title>\n<meta name=\"description\" content=\"Discover why wetlands are essential to healthy ecosystems, biodiversity, and people. 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