{"id":3395,"date":"2022-03-02T15:27:58","date_gmt":"2022-03-02T14:27:58","guid":{"rendered":"http:\/\/projet-cecc.org\/?page_id=3395"},"modified":"2025-04-14T12:23:11","modified_gmt":"2025-04-14T10:23:11","slug":"impact-de-lusage-des-terres","status":"publish","type":"page","link":"https:\/\/www.projet-cecc.org\/?page_id=3395","title":{"rendered":"Impact de l&rsquo;usage des terres"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3395\" class=\"elementor elementor-3395\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-044f60c e-flex e-con-boxed e-con e-parent\" data-id=\"044f60c\" 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-0c53988 elementor-widget elementor-widget-spacer\" data-id=\"0c53988\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a70b1c1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a70b1c1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-70b6102\" data-id=\"70b6102\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-64c2d62 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"64c2d62\" data-element_type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;bullets&quot;,&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;,&quot;h4&quot;,&quot;h5&quot;],&quot;no_headings_message&quot;:&quot;Aucun titre n\\u2019a \\u00e9t\\u00e9 trouv\\u00e9 sur cette page.&quot;,&quot;icon&quot;:{&quot;value&quot;:&quot;fas fa-circle&quot;,&quot;library&quot;:&quot;fa-solid&quot;,&quot;rendered_tag&quot;:&quot;&lt;svg class=\\&quot;e-font-icon-svg e-fas-circle\\&quot; 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Il propose un <strong><span style=\"color: #ff6600;\">cadre de mod\u00e9lisation sp\u00e9cifique<\/span><\/strong> pour v\u00e9rifier si des basculements se sont effectivement produits dans les d\u00e9cennies pass\u00e9es dans cette r\u00e9gion, o\u00f9 et quand, s\u2019il pourrait s\u2019en produire \u00e0 l\u2019avenir dans monde plus chaud et plus peupl\u00e9 et quelles seraient leurs cons\u00e9quences sur les ressources en eau et les risques hydrologiques.<\/p><p>Le projet CECC sera notamment concern\u00e9 par l\u2019aspect du projet TipHyc portant sur <strong><span style=\"color: #ff6600;\">l\u2019analyse et le d\u00e9cryptage de sc\u00e9narios d\u2019usage des terres existants et la construction de sc\u00e9narios \u00ab synth\u00e9tiques \u00bb (\u00ab what if \u00bb), \u00ab r\u00e9alistes \u00bb et \u00ab extr\u00eames \u00bb<\/span><\/strong>, qui seront utilis\u00e9s dans TipHyc pour explorer les possibilit\u00e9s de bascules futures. Elle s\u2019inscrit aussi en lien avec le projet <a href=\"https:\/\/anr.fr\/ProjetIA-18-MPGA-0008\">AMANECER (ANR-MOPGA)<\/a> pour la partie Andine.<\/p><p>Il s\u2019agit notamment de <strong><span style=\"color: #ff6600;\">valoriser ces r\u00e9sultats et d\u2019op\u00e9rationnaliser les sc\u00e9narios d\u2019usage des terres \u00ab TipHyc \u00bb pour la mod\u00e9lisation \u00e9co-hydrologique.<\/span><\/strong> Deux sources de donn\u00e9es principales seront utilis\u00e9es pour la construction de sc\u00e9narios sont le produit LUH2 (Land Use Harmonisation V2) et la prospective Agrimonde-Terra (INRAE\/CIRAD). Les produits seront mis \u00e0 disposition pour les actions de l\u2019Axe n\u00b02 ainsi que sur le portail informatique.<\/p><p><strong>Coordination\u00a0:<\/strong> Christophe PEUGEOT (hydrologue, HSM)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dcbba97 elementor-widget elementor-widget-spacer\" data-id=\"dcbba97\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc8c9eb elementor-widget elementor-widget-spacer\" data-id=\"bc8c9eb\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f1adc9 elementor-widget elementor-widget-spacer\" data-id=\"4f1adc9\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec4d616 elementor-grid-2 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-widget elementor-widget-portfolio\" data-id=\"ec4d616\" data-element_type=\"widget\" data-settings=\"{&quot;item_ratio&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:0.96,&quot;sizes&quot;:[]},&quot;row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:14,&quot;sizes&quot;:[]},&quot;columns&quot;:&quot;2&quot;,&quot;columns_tablet&quot;:&quot;2&quot;,&quot;columns_mobile&quot;:&quot;1&quot;,&quot;item_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"portfolio.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-portfolio elementor-grid elementor-posts-container\">\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post  post-5074 post type-post status-publish format-standard has-post-thumbnail hentry category-publications\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/www.projet-cecc.org\/?p=5074\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"696\" height=\"480\" src=\"https:\/\/www.projet-cecc.org\/wp-content\/uploads\/extraction.jpg\" class=\"attachment-medium_large size-medium_large wp-image-5042\" alt=\"\" srcset=\"https:\/\/www.projet-cecc.org\/wp-content\/uploads\/extraction.jpg 724w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/extraction-300x207.jpg 300w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/extraction-24x17.jpg 24w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/extraction-36x25.jpg 36w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/extraction-48x33.jpg 48w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h5 class=\"elementor-portfolio-item__title\">\n\t\tExtraction de connaissances \u00e0 partir de donn\u00e9es textuelles : application \u00e0 la d\u00e9couverte de r\u00e8gles de changement d\u2019usage des sols\t\t<\/h5>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e088f7 elementor-widget elementor-widget-spacer\" data-id=\"5e088f7\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e41bfdb elementor-widget elementor-widget-image\" data-id=\"e41bfdb\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"696\" height=\"466\" src=\"https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-1024x685.jpg\" class=\"attachment-large size-large wp-image-4063\" alt=\"\" srcset=\"https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-1024x685.jpg 1024w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-300x201.jpg 300w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-768x514.jpg 768w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-1536x1027.jpg 1536w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-2048x1370.jpg 2048w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-24x16.jpg 24w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-36x24.jpg 36w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/IRD_033551_ORI-48x32.jpg 48w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c9eef6 elementor-widget elementor-widget-spacer\" data-id=\"7c9eef6\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b22958 elementor-widget elementor-widget-heading\" data-id=\"3b22958\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Production de cartes d\u2019Evapotranspiration R\u00e9elle (ETR) r\u00e9gionales<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43e8188 elementor-widget elementor-widget-text-editor\" data-id=\"43e8188\" 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<h6>\u00a0<\/h6><p>Cette action, men\u00e9e sur la zone du Sahel, permet de contraindre ou valider le mod\u00e8le hydrologique r\u00e9gional (PARFLOW), en combinant diverses informations de terrain et satellites, portant notamment sur l\u2019\u00e9volution du couvert v\u00e9g\u00e9tal (\u00ab naturel \u00bb ou agricole).<\/p><p>Cette action est men\u00e9e dans le cadre de deux projets : la pr\u00e9paration de la mission spatiale <a href=\"https:\/\/trishna.cnes.fr\/fr\">TRISHNA<\/a>, dont le lancement du satellite infrarouge thermique est pr\u00e9vu en 2025, et le projet EVAP\u2019EAU (ICIREWARD). L\u2019objectifs des travaux \u00e0 mener, du <strong><span style=\"color: #ff6600;\">suivi de l\u2019\u00e9vapotranspiration (ETR)<\/span><\/strong> est de <strong><span style=\"color: #ff6600;\">mettre en place une veille et une mise \u00e0 jour r\u00e9guli\u00e8re sur tous les produits existants<\/span><\/strong>, qui sont globalement en plein essor actuellement. L\u2019\u00e9quipe travaille sur cinq zones : le centre S\u00e9n\u00e9gal, le delta du Fleuve S\u00e9n\u00e9gal, le haut bassin versant du Fleuve S\u00e9n\u00e9gal, le Sud-ouest du Niger et le Sud du Niger. Ces zones ont \u00e9t\u00e9 identifi\u00e9es car elles pr\u00e9sentent chacune diff\u00e9rents types de syst\u00e8mes (agroforesterie, agropastoralisme, cultures irrigu\u00e9es, etc.) et permettent d\u2019autre part de valider les produits via les mesures in-situ qui y sont disponibles.<\/p><p>Concernant la veille sur les produits ETR disponibles, l\u2019\u00e9quipe s&rsquo;int\u00e9resse \u00e0 tous types disponibles (m\u00e9thode satellite, mod\u00e9lisation de surfaces, spatialisation de donn\u00e9es, <em>data fusion<\/em>, etc.). Au total, <strong><span style=\"color: #ff6600;\">une quinzaine de produits sont identifi\u00e9s et intercompar\u00e9s sur les zones cibles<\/span><\/strong> nomm\u00e9es plus haut, en les \u00e9valuant via plusieurs crit\u00e8res : la coh\u00e9rence des s\u00e9ries temporelles, la variabilit\u00e9 spatiale des cartes, etc. Les premiers r\u00e9sultats obtenus indiquent l&rsquo;int\u00e9r\u00eat de participer \u00e0 l&rsquo;effort de g\u00e9n\u00e9ration de nouveaux produits, car la qualit\u00e9 des produits actuels n\u2019est pas satisfaisante compte tenu des objectifs vis\u00e9s au Sahel. Le groupe travaille sur une <strong><span style=\"color: #ff6600;\">approche contextuelle sur donn\u00e9es satellite (m\u00e9thode EVASPA)<\/span><\/strong> qui sera au c\u0153ur de la chaine de traitement des donn\u00e9es TRISHNA du CNES (lancement en 2025). Cette m\u00e9thode a d\u00e9j\u00e0 fait ses preuves au Sahel, et repr\u00e9sente un vrai atout pour le projet CECC, \u00e0 la fois pour la mod\u00e9lisation r\u00e9gionale, et aux <strong><span style=\"color: #ff6600;\">\u00e9tudes hydrologiques et agronomiques (pr\u00e9vision des rendements agricoles, pluie\/d\u00e9bit, crues)<\/span><\/strong> au Niger et au S\u00e9n\u00e9gal. Dans le cadre du projet CECC, un travail sera effectu\u00e9 sur la <span style=\"color: #ff6600;\"><strong>mise \u00e0 disposition de ces produits<\/strong><\/span> de suivi pour l\u2019appui \u00e0 des acteurs ayant des applications de type agrologiques, hydrologiques, \u00e9cologiques, voire g\u00e9ologiques.<\/p><p><strong>Coordination\u00a0: <\/strong>J\u00e9r\u00f4me DEMARTY (hydrologue, HSM)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-364863d elementor-widget elementor-widget-spacer\" data-id=\"364863d\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a3622e elementor-widget elementor-widget-image\" data-id=\"6a3622e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"696\" height=\"463\" src=\"https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280-1024x681.jpg\" class=\"attachment-large size-large wp-image-4123\" alt=\"\" srcset=\"https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280-1024x681.jpg 1024w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280-300x199.jpg 300w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280-768x511.jpg 768w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280-24x16.jpg 24w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280-36x24.jpg 36w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280-48x32.jpg 48w, https:\/\/www.projet-cecc.org\/wp-content\/uploads\/drought-780088_1280.jpg 1280w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/>\t\t\t\t\t\t\t\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Actions Elaboration de sc\u00e9narios LULC (Land Use, Land Cover) \u00a0 L\u2019action LULC (Land Use Land Cover) est men\u00e9e en coordination avec le projet TipHyc : \u201dExploring Tipping Points and Regime<\/p><\/div>\n<div class=\"blog-btn\"><a href=\"https:\/\/www.projet-cecc.org\/?p=5074\" class=\"home-blog-btn\">Lire la suite<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":0,"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","footnotes":""},"class_list":["post-3395","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=\/wp\/v2\/pages\/3395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3395"}],"version-history":[{"count":22,"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=\/wp\/v2\/pages\/3395\/revisions"}],"predecessor-version":[{"id":5088,"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=\/wp\/v2\/pages\/3395\/revisions\/5088"}],"wp:attachment":[{"href":"https:\/\/www.projet-cecc.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}