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{"id":123,"date":"2025-04-28T16:34:40","date_gmt":"2025-04-28T14:34:40","guid":{"rendered":"https:\/\/grece-tchad.com\/?p=123"},"modified":"2025-08-01T15:59:57","modified_gmt":"2025-08-01T13:59:57","slug":"afflux-des-migrants-et-evolution-des-terres-agricoles-dans-le-canton-gore-de-2003-a-2023","status":"publish","type":"post","link":"https:\/\/grece-tchad.com\/?p=123","title":{"rendered":"AFFLUX DES MIGRANTS ET \u00c9VOLUTION DES TERRES AGRICOLES DANS LE CANTON GOR\u00c9 DE 2003 \u00c0 2023"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"123\" class=\"elementor elementor-123\">\n\t\t\t\t<div class=\"elementor-element elementor-element-627035a e-flex e-con-boxed e-con e-parent\" data-id=\"627035a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-79a266d elementor-widget elementor-widget-heading\" data-id=\"79a266d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Par : BEASNAN Florand, Romain GOUATAINE SEINGUE et Baohoutou LAHOTE\n<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e15493e e-flex e-con-boxed e-con e-parent\" data-id=\"e15493e\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5b13c84 elementor-widget elementor-widget-text-editor\" data-id=\"5b13c84\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"western\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><b>R\u00e9sum\u00e9<\/b><\/span><\/span><\/p><p class=\"western\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\">L\u2019occupation des sols est l\u2019un des principales causes qui entra\u00eene la d\u00e9gradation des diff\u00e9rentes formations v\u00e9g\u00e9tales. Cette d\u00e9gradation est d\u2019autant plus inqui\u00e9tante du fait des conditions climatiques et des pressions d\u00e9mographiques. L\u2019objectif de ce travail est d\u2019analyser la dynamique de l\u2019occupation du sol li\u00e9e aux activit\u00e9s agricoles afin de caract\u00e9riser la variation du couvert v\u00e9g\u00e9tal dans le canton Gor\u00e9, d\u00e9partement de la Nya-Pend\u00e9. Cette \u00e9tude vise \u00e0 montrer l\u2019\u00e9volution du couvert v\u00e9g\u00e9tal ligneux dans le canton Gor\u00e9 de 2000 \u00e0 2023 de m\u00eame que les facteurs et les effets de cette \u00e9volution en utilisant comme m\u00e9thodologie une analyse diachronique bas\u00e9e sur le traitement et la cartographie de trois sc\u00e8nes d\u2019images Landsat-7, 8, 9 (2003, 2013 et 2023) \u00e0 travers la t\u00e9l\u00e9d\u00e9tection afin de constater les changements op\u00e9r\u00e9s. Les r\u00e9sultats de cette \u00e9tude montrent qu&rsquo;en vingt ans, la population du canton Gor\u00e9 a tripl\u00e9 passant de 7794 habitants en 1993 \u00e0 37424 habitants en 2009, pour atteindre 129667 habitants en 2024, soit un \u00e9cart de 92243 personnes pour une densit\u00e9 en moyenne pour les deux cantons 60,84 habitants\/km\u00b2. La forte augmentation de la population s\u2019est traduite par une forte pression sur les ressources. L\u2019analyse des unit\u00e9s des classes d\u2019occupation des sols donne l\u2019\u00e9volution des superficies qui ont r\u00e9gress\u00e9 (for\u00eat claire 2877ha, for\u00eat galerie a diminu\u00e9 de 1454,6 ha, savane arbor\u00e9e 4777,8 ha et zone inondable 4825 ha) et <\/span><\/span><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\">celles qui ont augment\u00e9 (zone de culture 10343 ha et savane arbustive 3946,86 ha). Cette analyse spatio-temporelle a permis d\u2019appr\u00e9hender les modifications du couvert v\u00e9g\u00e9tal, les facteurs d\u00e9terminants et en pr\u00e9voir des strat\u00e9gies pour une gestion concert\u00e9e des ressources ligneuses dans les zones d\u00e9j\u00e0 occup\u00e9es, contr\u00f4ler l\u2019exploitation du bois et soutenir les actions de reboisement.<\/span><\/span><\/p><p align=\"justify\"><span style=\"font-family: Calibri, serif;\"><span style=\"font-size: small;\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><b>Mots-cl\u00e9s\u00a0:<\/b><\/span><\/span> <span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><i>Afflux des migrants, occupation du sol, dynamique, analyse diachronique, espace agricole, canton Gor\u00e9.<\/i><\/span><\/span> <\/span><\/span><\/p><p class=\"western\" align=\"center\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><span lang=\"en-US\"><b>Migrant influx and changes in agricultural land in Gor\u00e9 canton from 2003 to 2023<\/b><\/span><\/span><\/span><\/p><p class=\"western\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><span lang=\"en-US\"><b>Abstract<\/b><\/span><\/span><\/span><\/p><p class=\"western\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><span lang=\"en-US\">Land use is one of the main causes of the degradation of different plant formations. This deterioration is all the more worrying because of climatic conditions and demographic pressures. The aim of this work is to analyze the dynamics of land use linked to agricultural activities in order to characterize the variation in vegetation cover in Gor\u00e9 canton, Nya-Pend\u00e9 department.<\/span><\/span><\/span><\/p><p class=\"western\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><span lang=\"en-US\">This study aims to show the evolution of woody vegetation cover in Gor\u00e9 canton from 2000 to 2023, as well as the factors and effects of this evolution, using a diachronic analysis methodology based on the processing and mapping of three Landsat-7, 8, 9 image scenes (2003, 2013 and 2023) through remote sensing in order to observe the changes that have taken place. The results of this study show that in twenty years, the population of Gor\u00e9 canton has tripled, rising from 7794 inhabitants in 1993 to 37424 in 2009, and will reach 129667 inhabitants in 2024, a difference of 92243 people for an average density for the two cantons of 60.84 inhabitants\/km\u00b2. The sharp rise in population has put pressure on resources. The analysis of land use class units shows the evolution of areas that have decreased (open <\/span><\/span><\/span><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><span lang=\"en-US\">forest 2877ha, gallery forest decreased by 1454.6 ha, wooded savannah 4777.8 ha and flood zone 4825 ha) and those that have increased (cultivated area 10343 ha and shrub savannah 3946.86 ha). This spatio-temporal analysis has enabled us to understand changes in vegetation cover, the determining factors and to plan strategies for concerted management of wood resources in areas already occupied, to control timber harvesting and support reforestation actions.<\/span><\/span><\/span><\/p><p class=\"western\"><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><span lang=\"en-US\"><b>Key words: <\/b><\/span><\/span><\/span><span style=\"font-family: Garamond, serif;\"><span style=\"font-size: medium;\"><span lang=\"en-US\"><i>Migrant influx, land use, dynamics, diachronic analysis, agricultural space Gor\u00e9 canton.<\/i><\/span><\/span><\/span><\/p><p><a href=\"https:\/\/grece-tchad.com\/wp-content\/uploads\/2025\/04\/Tire-a-part-Florand-Beasnan-et-al.pdf\" target=\"_blank\" rel=\"noopener\">T\u00e9l\u00e9charger l&rsquo;article<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Par : BEASNAN Florand, Romain GOUATAINE SEINGUE et Baohoutou LAHOTE R\u00e9sum\u00e9 L\u2019occupation des sols est l\u2019un des principales causes qui entra\u00eene la d\u00e9gradation des diff\u00e9rentes formations v\u00e9g\u00e9tales. Cette d\u00e9gradation est d\u2019autant plus inqui\u00e9tante du fait des conditions climatiques et des pressions d\u00e9mographiques. L\u2019objectif de ce travail est d\u2019analyser la dynamique de l\u2019occupation du sol li\u00e9e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-123","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"_links":{"self":[{"href":"https:\/\/grece-tchad.com\/index.php?rest_route=\/wp\/v2\/posts\/123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/grece-tchad.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/grece-tchad.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/grece-tchad.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/grece-tchad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=123"}],"version-history":[{"count":9,"href":"https:\/\/grece-tchad.com\/index.php?rest_route=\/wp\/v2\/posts\/123\/revisions"}],"predecessor-version":[{"id":438,"href":"https:\/\/grece-tchad.com\/index.php?rest_route=\/wp\/v2\/posts\/123\/revisions\/438"}],"wp:attachment":[{"href":"https:\/\/grece-tchad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/grece-tchad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/grece-tchad.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}