{"id":13262,"date":"2016-09-18T00:00:05","date_gmt":"2016-09-17T22:00:05","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=13262"},"modified":"2016-09-10T08:59:32","modified_gmt":"2016-09-10T06:59:32","slug":"en-egypte-une-foret-a-pousse-au-coeur-du-sahara","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/en-egypte-une-foret-a-pousse-au-coeur-du-sahara\/","title":{"rendered":"En \u00c9gypte, une for\u00eat a pouss\u00e9 au c\u0153ur du Sahara"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\">Faire pousser une for\u00eat au coeur du Sahara, c\u2019est possible. En Egypte, pays particuli\u00e8rement aride, des scientifiques ont fait le pari de transformer une partie du d\u00e9sert en terre fertile. Mission accomplie \u00e0 deux heures du Caire o\u00f9 une for\u00eat a vu le jour gr\u00e2ce aux eaux us\u00e9es.<\/p>\n<p style=\"text-align: justify;\">En r\u00e9gion aride, chaque jour le d\u00e9sert gagne un peu plus de terrain et l\u2019avancement des dunes est un r\u00e9el probl\u00e8me. Le gouvernement \u00e9gyptien a trouv\u00e9 le moyen d\u2019y rem\u00e9dier : en plantant une for\u00eat.<\/p>\n<p style=\"text-align: justify;\">Probl\u00e8me : comment faire pousser une for\u00eat en plein d\u00e9sert sans ass\u00e9cher les r\u00e9serves d\u2019eau potable si pr\u00e9cieuses de la population ? Les scientifiques ont trouv\u00e9 la solution en utilisant des eaux us\u00e9es semi-trait\u00e9es. Car ces eaux sont charg\u00e9es en phosphates et en azote, une combinaison que l\u2019on trouve dans les engrais commerciaux.<\/p>\n<p style=\"text-align: justify;\">Mais pour parvenir \u00e0 faire pousser une v\u00e9ritable for\u00eat en plein d\u00e9sert, les scientifiques ont d\u00fb mettre au point un ing\u00e9nieux syst\u00e8me d\u2019irrigation. Ils ont ainsi r\u00e9cup\u00e9r\u00e9 les eaux us\u00e9es dans le bassin de drainage le plus proche. Les eaux semi-trait\u00e9es, autrement dit, d\u00e9barrass\u00e9es de tout polluant mais impropre \u00e0 la consommation, sont id\u00e9ales pour la flore.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p style=\"text-align: justify;\">Et si en milieu plus humide, la quantit\u00e9 de fertilisant contenue dans ces eaux us\u00e9es, combin\u00e9e \u00e0 celle du sol aurait pu \u00eatre trop importante pour certaines plantes, ce n\u2019est pas le cas en milieu aride.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/EOSFKGay5Hg?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"text-align: justify;\">Alors qu\u2019il faut 60 ans pour qu\u2019un arbre atteigne la taille \u00e0 laquelle il pourra \u00eatre coup\u00e9 en Europe, 15 ans suffisent dans le d\u00e9sert. Ainsi, l\u2019Egypte est parvenue \u00e0 faire reculer le d\u00e9sert, tout en produisant des ressources naturelles import\u00e9es jusqu\u2019\u00e0 pr\u00e9sent. Le pays esp\u00e8re m\u00eame parvenir \u00e0 faire certains profits \u00e9conomiques gr\u00e2ce \u00e0 leur for\u00eat.<\/p>\n<p style=\"text-align: justify;\">Cette reforestation est tr\u00e8s encourageante. Les 650 000 hectares de d\u00e9sert infertile \u00e9gyptien pourraient finir par \u00eatre recouverts d\u2019arbres \u00e0 perte de vue.<\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"13262\">(1130)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Faire pousser une for\u00eat au coeur du Sahara, c\u2019est possible. En Egypte, pays particuli\u00e8rement aride, des scientifiques ont fait le&#8230;<\/p>\n","protected":false},"author":1,"featured_media":13263,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"En \u00c9gypte, une for\u00eat a pouss\u00e9 au c\u0153ur du Sahara @laterredufutur","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[26],"tags":[289,639,332,333,1961,314,5483,636,684],"class_list":["post-13262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions","tag-arbres","tag-culture","tag-desert","tag-eau","tag-egypte","tag-foret","tag-region-aride","tag-sahara","tag-video","wpcat-26-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/09\/foret-egypte-desert.jpg?fit=768%2C512&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-3rU","jetpack-related-posts":[{"id":16045,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-grande-muraille-verte-repousse-le-desert-du-sahara\/","url_meta":{"origin":13262,"position":0},"title":"La grande muraille verte repousse le d\u00e9sert du Sahara","author":"Admin","date":"19 novembre 2017","format":false,"excerpt":"La grande muraille verte veut reboiser les terres arides et repousser le d\u00e9sert, sur 7 800 km. C\u2019est un projet colossal qui a \u00e9t\u00e9 initi\u00e9 par l\u2019Union Africaine en 2008. Cr\u00e9er une immense barri\u00e8re v\u00e9g\u00e9tale, d\u2019un bout \u00e0 l\u2019autre du continent, afin de freiner l\u2019avanc\u00e9e du d\u00e9sert. Un projet ambitieux,\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/trace-grande-muraille-verte-sahara.jpg?fit=416%2C257&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":22853,"url":"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-regorgeait-deau\/","url_meta":{"origin":13262,"position":1},"title":"Quand le Sahara regorgeait d&rsquo;eau","author":"Admin","date":"1 ao\u00fbt 2021","format":false,"excerpt":"Il y a de cela 10.000 \u00e0 11.000 ans, il pleuvait sur le Sahara. Ce qui est aujourd'hui le plus grand d\u00e9sert chaud du monde accueillait une v\u00e9g\u00e9tation riche, des lacs, une faune vari\u00e9e avec des \u00e9l\u00e9phants, des girafes... Nos anc\u00eatres ont habit\u00e9 ces savanes et for\u00eats sahariennes, vivant de\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":22071,"url":"https:\/\/www.laterredufutur.com\/accueil\/pourquoi-les-deserts-sont-ils-si-froids-la-nuit\/","url_meta":{"origin":13262,"position":2},"title":"Pourquoi les d\u00e9serts sont-ils si froids la nuit ?","author":"Admin","date":"22 f\u00e9vrier 2021","format":false,"excerpt":"Les temp\u00e9ratures au Sahara peuvent chuter en moyenne de 24 degr\u00e9s Celsius pendant la nuit. Si vous faites une excursion en plein jour dans le d\u00e9sert du Sahara en Afrique du Nord, vous apporterez beaucoup d'eau et beaucoup de cr\u00e8me solaire. Mais si vous pr\u00e9voyez de passer la nuit, vous\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":25255,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-etude-revele-pourquoi-et-quand-le-desert-du-sahara-est-devenu-vert\/","url_meta":{"origin":13262,"position":3},"title":"Une \u00e9tude r\u00e9v\u00e8le pourquoi et quand le d\u00e9sert du Sahara est devenu vert","author":"Admin","date":"17 octobre 2023","format":false,"excerpt":"Notre plan\u00e8te a beaucoup \u00e9volu\u00e9 au cours de milliards d'ann\u00e9es, de l'emplacement des continents \u00e0 la composition de l'atmosph\u00e8re. Une nouvelle \u00e9tude examine en d\u00e9tail l'histoire du d\u00e9sert du Sahara, qui n'a pas toujours \u00e9t\u00e9 une r\u00e9gion sauvage et aride. Des chercheurs finlandais et britanniques ont reconstitu\u00e9 les transformations p\u00e9riodiques\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7742,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-grande-muraille-verte-du-sahara-pour-reverdir-le-sahara\/","url_meta":{"origin":13262,"position":4},"title":"La Grande muraille verte du Sahara pour reverdir le Sahara","author":"Admin","date":"6 ao\u00fbt 2015","format":false,"excerpt":"A l'heure o\u00f9 l'on parle de la plan\u00e8te Mars, voire de la terraformer, il serait bon de se poser les vraies questions pour notre propre plan\u00e8te. 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De quoi alimenter le pays pendant 400 ans. 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