{"id":241,"date":"2021-09-30T16:45:27","date_gmt":"2021-09-30T14:45:27","guid":{"rendered":"https:\/\/acepartnerz.kinsta.cloud\/ramr2d\/?post_type=boursier&p=241"},"modified":"2024-09-30T14:00:40","modified_gmt":"2024-09-30T12:00:40","slug":"doumbouya-ibrahima-kalil","status":"publish","type":"boursier","link":"https:\/\/ace-partner.org\/ramr2d\/boursier\/doumbouya-ibrahima-kalil\/","title":{"rendered":"DOUMBOUYA Ibrahima Kalil"},"content":{"rendered":"\n

Date de d\u00e9but : 01\/11\/2021
Date pr\u00e9visionnelle de soutenance de th\u00e8se : D\u00e9cembre 2024<\/mark><\/strong><\/p>\n\n\n\n

Intitul\u00e9 du projet : <\/strong>
Evaluation de l\u2019impact environnemental et social des activit\u00e9s de l\u2019exploitation artisanale de l\u2019or dans la pr\u00e9fecture de Siguiri, R\u00e9publique de Guin\u00e9e : analyse pluridisciplinaire par T\u00e9l\u00e9d\u00e9tection, Syst\u00e8me d\u2019Information G\u00e9ographique (SIG) et approche communautaire.<\/strong><\/p>\n\n\n\n

R\u00e9sum\u00e9 du projet scientifique :<\/strong> <\/p>\n\n\n\n

Depuis le d\u00e9but du 21\u00e8me si\u00e8cle, l’exploitation artisanale et \u00e0 petite \u00e9chelle de l’or (ASGM) en Afrique de l’Ouest a connu une intensification et un d\u00e9veloppement significatif, \u00a0en grande partie due \u00e0 la hausse du prix de l\u2019or et \u00e0 la m\u00e9canisation des techniques d’extraction et de traitement du minerai. Ce d\u00e9veloppement minier artisanal a entra\u00een\u00e9 des transformations profondes dans les zones rurales, notamment les trajectoires sociotechniques, les dynamiques socio\u00e9conomiques, ainsi que l’environnement, avec des cons\u00e9quences telles que la pollution, le changement d\u2019occupation et de couverture terrestre, la d\u00e9gradation des sols, etc. Cette th\u00e8se a pour objectif d’analyser ces \u00e9volutions et d’\u00e9valuer leur impact sur les territoires en Haute Guin\u00e9e dans une approche pluridisciplinaire.<\/p>\n\n\n\n

Synth\u00e8se des r\u00e9sultats obtenus<\/strong> : <\/strong><\/p>\n\n\n\n

L’exploitation artisanale de l’or en Haute Guin\u00e9e est une activit\u00e9 qui remonte \u00e0 plusieurs si\u00e8cles et qui est aujourd’hui fortement pratiqu\u00e9e et intensifi\u00e9e. Les autorit\u00e9s coutumi\u00e8res ont historiquement exerc\u00e9, et continuent d’exercer, un contr\u00f4le sur l’organisation sociale dans les zones rurales, y compris sur les activit\u00e9s li\u00e9es \u00e0 l’exploitation artisanale de l’or. Cependant, L’introduction de pratiques m\u00e9canis\u00e9es et les d\u00e9fis li\u00e9s \u00e0 la r\u00e9gulation de ces nouvelles m\u00e9thodes ont conduit des transformations notables dans la dynamique sociotechnique de cette activit\u00e9. Nos r\u00e9sultats soutiennent que, dans le contexte sp\u00e9cifique de l’ASGM en Haute Guin\u00e9e, contrairement aux innovations radicales, les innovations \u00e0 petite \u00e9chelle\u2014c’est-\u00e0-dire les innovations \u00ab \u00e0 faible bruit \u00bb ou \u00ab \u00e0 faible niveau technologique \u00bb\u2014sont plus susceptibles de provoquer une transformation socio-\u00e9conomique profonde et durable de l’environnement rural.<\/p>\n\n\n\n

L’analyse des images satellite couvrant la p\u00e9riode de 2008 \u00e0 2023 r\u00e9v\u00e8le une expansion significative des activit\u00e9s d’extraction artisanale de l’or. La superficie des sites aurif\u00e8res est pass\u00e9e de 68 hectares en 2008 \u00e0 1 324 hectares en 2023, ce qui repr\u00e9sente une augmentation de 2 001%. Une p\u00e9riode d’intensification rapide a \u00e9t\u00e9 observ\u00e9e entre 2008 et 2012, suivie d’une expansion plus mod\u00e9r\u00e9e jusqu’en 2023. Ce d\u00e9veloppement minier constitue une menace majeure pour l’environnement, entra\u00eenant la d\u00e9gradation des sols, la destruction du couvert v\u00e9g\u00e9tal de la savane et des plantations de cajou, ainsi que l’alt\u00e9ration de la qualit\u00e9 de l’eau. De plus, la surexploitation des sites compromet la possibilit\u00e9 de restaurer la v\u00e9g\u00e9tation ou de r\u00e9utiliser ces terres \u00e0 des fins agricoles.<\/p>\n","protected":false},"excerpt":{"rendered":"

Date de d\u00e9but : 01\/11\/2021Date pr\u00e9visionnelle de soutenance de th\u00e8se : D\u00e9cembre 2024 Intitul\u00e9 du projet : Evaluation de l\u2019impact environnemental et social des activit\u00e9s de l\u2019exploitation artisanale de l\u2019or dans la pr\u00e9fecture de Siguiri, R\u00e9publique de Guin\u00e9e : analyse pluridisciplinaire par T\u00e9l\u00e9d\u00e9tection, Syst\u00e8me d\u2019Information G\u00e9ographique (SIG) et approche communautaire. R\u00e9sum\u00e9 du projet scientifique :  […]<\/p>\n","protected":false},"featured_media":242,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"class_list":["post-241","boursier","type-boursier","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nDOUMBOUYA Ibrahima Kalil - RAMR2D<\/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:\/\/ace-partner.org\/ramr2d\/boursier\/doumbouya-ibrahima-kalil\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DOUMBOUYA Ibrahima Kalil - RAMR2D\" \/>\n<meta property=\"og:description\" content=\"Date de d\u00e9but : 01\/11\/2021Date pr\u00e9visionnelle de soutenance de th\u00e8se : D\u00e9cembre 2024 Intitul\u00e9 du projet : Evaluation de l\u2019impact environnemental et social des activit\u00e9s de l\u2019exploitation artisanale de l\u2019or dans la pr\u00e9fecture de Siguiri, R\u00e9publique de Guin\u00e9e : analyse pluridisciplinaire par T\u00e9l\u00e9d\u00e9tection, Syst\u00e8me d\u2019Information G\u00e9ographique (SIG) et approche communautaire. 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