{"id":"https://openalex.org/W2129043105","doi":null,"title":"Le lac Tchad et N'Djam\u00e9na une relation porteuse de d\u00e9veloppement ?","display_name":"Le lac Tchad et N'Djam\u00e9na une relation porteuse de d\u00e9veloppement ?","publication_year":2009,"publication_date":"2009-04-20","ids":{"openalex":"https://openalex.org/W2129043105","mag":"2129043105"},"language":"fr","primary_location":{"id":"pmh:oai:agritrop.cirad.fr:557039","doi":null,"is_oa":true,"landing_page_url":"http://agritrop.cirad.fr/557039/","pdf_url":"http://agritrop.cirad.fr/557039/1/document_557039.pdf","source":{"id":"https://openalex.org/S4306402311","display_name":"Agritrop (Cirad)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I131077856","host_organization_name":"Centre de Coop\u00e9ration Internationale en Recherche Agronomique pour le D\u00e9veloppement","host_organization_lineage":["https://openalex.org/I131077856"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Savanes africaines en d\u00e9veloppement : innover pour durer. Actes du colloque, Garoua, Cameroun, 20-23 avril 2009","raw_type":"info:eu-repo/semantics/conferenceObject"},"volume":null,"type":"conference-paper","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://agritrop.cirad.fr/557039/1/document_557039.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5106185557","display_name":"G\u00e9raud Magrin","orcid":"https://orcid.org/0000-0003-3432-2721","observed_orcids":["https://orcid.org/0000-0003-3432-2721"]},"institutions":[{"id":"https://openalex.org/I4387153996","display_name":"Territoires, Environnement, T\u00e9l\u00e9d\u00e9tection et Information Spatiale","ror":"https://ror.org/0458hw939","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I131077856","https://openalex.org/I22248866","https://openalex.org/I277688954","https://openalex.org/I4210088668","https://openalex.org/I4387153996"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"G\u00e9raud Magrin","raw_affiliation_strings":["Territoires, Environnement, T\u00e9l\u00e9d\u00e9tection et Information Spatiale"],"raw_orcid":"https://orcid.org/0000-0003-3432-2721","affiliations":[{"raw_affiliation_string":"Territoires, Environnement, T\u00e9l\u00e9d\u00e9tection et Information Spatiale","institution_ids":["https://openalex.org/I4387153996"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043308103","display_name":"Fr\u00e9d\u00e9ric R\u00e9ounodji","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I117723502","display_name":"University of N'Djamena","ror":"https://ror.org/013gpqv08","country_code":"TD","type":"education","lineage":["https://openalex.org/I117723502"]}],"countries":["TD"],"is_corresponding":false,"raw_author_name":"Fr\u00e9d\u00e9ric R\u00e9ounodji","raw_affiliation_strings":["Universit\u00e9 de N'Djamena"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e9 de N'Djamena","institution_ids":["https://openalex.org/I117723502"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025841615","display_name":"Goltob Mbaye Ngaressem","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I117723502","display_name":"University of N'Djamena","ror":"https://ror.org/013gpqv08","country_code":"TD","type":"education","lineage":["https://openalex.org/I117723502"]}],"countries":["TD"],"is_corresponding":false,"raw_author_name":"Goltob Mbaye Ngaressem","raw_affiliation_strings":["Universit\u00e9 de N'Djamena"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e9 de N'Djamena","institution_ids":["https://openalex.org/I117723502"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025536108","display_name":"Audrey Mbagogo","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I112713213","display_name":"Universit\u00e9 Gaston Berger","ror":"https://ror.org/01jp0tk64","country_code":"SN","type":"education","lineage":["https://openalex.org/I112713213"]}],"countries":["SN"],"is_corresponding":false,"raw_author_name":"Audrey Mbagogo","raw_affiliation_strings":["Universit\u00e9 Gaston Berger de Saint-Louis, S\u00e9n\u00e9gal#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e9 Gaston Berger de Saint-Louis, S\u00e9n\u00e9gal#TAB#","institution_ids":["https://openalex.org/I112713213"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5067083839","display_name":"Mahamat Assouyouti","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4387153954","display_name":"Centre d'\u00c9tudes et de Recherches sur le D\u00e9veloppement International","ror":"https://ror.org/01hg13988","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I198244214","https://openalex.org/I2802818602","https://openalex.org/I4210090127","https://openalex.org/I4210131494","https://openalex.org/I4210166444","https://openalex.org/I4387153954"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Mahamat Assouyouti","raw_affiliation_strings":["Centre d'\u00c9tudes et de Recherches sur le D\u00e9veloppement International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre d'\u00c9tudes et de Recherches sur le D\u00e9veloppement International","institution_ids":["https://openalex.org/I4387153954"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.17396531,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":null,"issue":null,"first_page":"11 p.","last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11755","display_name":"Transboundary Water Resource Management","score":0.48410001397132874,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11755","display_name":"Transboundary Water Resource Management","score":0.48410001397132874,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13622","display_name":"Historical and Environmental Studies","score":0.17020000517368317,"subfield":{"id":"https://openalex.org/subfields/1202","display_name":"History"},"field":{"id":"https://openalex.org/fields/12","display_name":"Arts and Humanities"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13019","display_name":"African Studies and Geopolitics","score":0.1454000025987625,"subfield":{"id":"https://openalex.org/subfields/3314","display_name":"Anthropology"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/lake-chad","display_name":"Lake Chad","score":0.9319999814033508},{"id":"https://openalex.org/keywords/n-djamena","display_name":"N'Djamena","score":0.9890000224113464},{"id":"https://openalex.org/keywords/urban-rural-relations","display_name":"urban-rural relations","score":0.765999972820282},{"id":"https://openalex.org/keywords/regional-development","display_name":"regional development","score":0.7889999747276306},{"id":"https://openalex.org/keywords/sahel","display_name":"Sahel","score":0.5709999799728394},{"id":"https://openalex.org/keywords/fisheries","display_name":"fisheries","score":0.41499999165534973},{"id":"https://openalex.org/keywords/migration","display_name":"migration","score":0.33500000834465027},{"id":"https://openalex.org/keywords/road-infrastructure","display_name":"road infrastructure","score":0.6019999980926514},{"id":"https://openalex.org/keywords/agricultural-innovation","display_name":"agricultural innovation","score":0.7630000114440918},{"id":"https://openalex.org/keywords/state-crisis","display_name":"crisis of the state","score":0.49000000953674316},{"id":"https://openalex.org/keywords/land-use-conflicts","display_name":"land use conflicts","score":0.5709999799728394},{"id":"https://openalex.org/keywords/water-resources","display_name":"water resources","score":0.48100000619888306}],"concepts":[{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.6460073590278625},{"id":"https://openalex.org/C152382732","wikidata":"https://www.wikidata.org/wiki/Q468756","display_name":"Shore","level":2,"score":0.503945529460907},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.48415619134902954},{"id":"https://openalex.org/C29985473","wikidata":"https://www.wikidata.org/wiki/Q188460","display_name":"Natural resource","level":2,"score":0.4305487871170044},{"id":"https://openalex.org/C505870484","wikidata":"https://www.wikidata.org/wiki/Q180538","display_name":"Fishery","level":1,"score":0.25348472595214844},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.24759265780448914},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"pmh:oai:agritrop.cirad.fr:557039","doi":null,"is_oa":true,"landing_page_url":"http://agritrop.cirad.fr/557039/","pdf_url":"http://agritrop.cirad.fr/557039/1/document_557039.pdf","source":{"id":"https://openalex.org/S4306402311","display_name":"Agritrop (Cirad)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I131077856","host_organization_name":"Centre de Coop\u00e9ration Internationale en Recherche Agronomique pour le D\u00e9veloppement","host_organization_lineage":["https://openalex.org/I131077856"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Savanes africaines en d\u00e9veloppement : innover pour durer. Actes du colloque, Garoua, Cameroun, 20-23 avril 2009","raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"pmh:oai:HAL:cirad-00471340v2","doi":null,"is_oa":true,"landing_page_url":"https://hal.science/cirad-00471340","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4405252976","host_organization_name":"Centre pour la Communication Scientifique Directe","host_organization_lineage":["https://openalex.org/I4405252976"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Savanes africaines en d\u00e9veloppement : innover pour durer, Apr 2009, Garoua, Cameroun. 11 p","raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"mag:2129043105","doi":null,"is_oa":false,"landing_page_url":"https://hal.archives-ouvertes.fr/docs/00/47/43/35/PDF/109_magrin.pdf","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},{"id":"mag:3021480974","doi":null,"is_oa":false,"landing_page_url":"https://hal.archives-ouvertes.fr/cirad-00471340/","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:agritrop.cirad.fr:557039","doi":null,"is_oa":true,"landing_page_url":"http://agritrop.cirad.fr/557039/","pdf_url":"http://agritrop.cirad.fr/557039/1/document_557039.pdf","source":{"id":"https://openalex.org/S4306402311","display_name":"Agritrop (Cirad)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I131077856","host_organization_name":"Centre de Coop\u00e9ration Internationale en Recherche Agronomique pour le D\u00e9veloppement","host_organization_lineage":["https://openalex.org/I131077856"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Savanes africaines en d\u00e9veloppement : innover pour durer. Actes du colloque, Garoua, Cameroun, 20-23 avril 2009","raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/6","score":0.6618000268936157,"display_name":"Clean water and sanitation"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2129043105.pdf","grobid_xml":"https://content.openalex.org/works/W2129043105.grobid-xml"},"referenced_works_count":10,"referenced_works":["https://openalex.org/W73812929","https://openalex.org/W600067428","https://openalex.org/W927715097","https://openalex.org/W1602113440","https://openalex.org/W1975226066","https://openalex.org/W2000753309","https://openalex.org/W2143529378","https://openalex.org/W2791646952","https://openalex.org/W2804469935","https://openalex.org/W2905990379"],"related_works":["https://openalex.org/W7148420746","https://openalex.org/W7151915640","https://openalex.org/W2590012306","https://openalex.org/W4407005151","https://openalex.org/W4393981066","https://openalex.org/W1557215043","https://openalex.org/W4290189727","https://openalex.org/W2759237304","https://openalex.org/W6993238348","https://openalex.org/W4292587745"],"abstract_inverted_index":{"Les":[0,199],"s\u00e9cheresses":[1],"des":[2,24,37,109,143,154,167,223,229],"ann\u00e9es":[3,104,107,125,168],"1970-1980":[4],"et":[5,48,148,161,178,189,196,240],"le":[6,49,90,131,165],"r\u00e9chauffement":[7],"climatique":[8],"attirent":[9,142],"l'attention":[10],"m\u00e9diatique":[11],"sur":[12,236],"les":[13,66,99,124,139,150,174,237,241],"risques":[14],"de":[15,43,55,79,88,96,101,145,184,190,218,233],"disparition":[16],"du":[17,115,135],"lac":[18,50,91,116,136],"Tchad.":[19,51],"Alors":[20],"que":[21,129],"la":[22,35,59,84,127,159,162,216,227,234],"plupart":[23],"avis":[25],"scientifiques":[26],"contestent":[27],"cette":[28],"vision":[29],"pessimiste,":[30],"nous":[31,56],"proposons":[32],"ici":[33],"d'\u00e9tudier":[34],"dynamique":[36],"relations":[38],"entre":[39,176,245],"N'Djam\u00e9na,":[40],"capitale":[41],"sah\u00e9lienne":[42],"plus":[44],"d'un":[45],"million":[46],"d'habitants,":[47],"Il":[52],"s'agira":[53],"notamment":[54],"demander":[57],"si":[58],"demande":[60],"urbaine":[61],"constitue":[62],"une":[63,170],"menace":[64],"pour":[65],"ressources":[67,238],"naturelles":[68,239],"(eau,":[69],"poisson,":[70],"terres":[71],"cultivables,":[72],"p\u00e2turages)":[73],"ou":[74,203],"au":[75,113],"contraire":[76],"un":[77,207],"facteur":[78],"d\u00e9veloppement":[80],"r\u00e9gional.":[81],"Proche":[82],"par":[83,98,158],"distance":[85],"(une":[86],"centaine":[87],"kilom\u00e8tres),":[89],"est":[92],"rest\u00e9":[93],"longtemps":[94],"\u00e9loign\u00e9":[95],"N'Djam\u00e9na":[97,177],"difficult\u00e9s":[100],"circulation.":[102],"Des":[103],"1950":[105],"aux":[106],"1990,":[108,169],"am\u00e9nagements":[110],"agricoles":[111,188],"modernes":[112],"nord":[114],"peinent":[117],"\u00e0":[118],"l'int\u00e9grer":[119],"dans":[120],"l'orbite":[121],"ndjam\u00e9noise.":[122],"Durant":[123],"1980,":[126],"crise":[128,217],"traverse":[130],"Tchad":[132],"accro\u00eet":[133],"l'attractivit\u00e9":[134],"-":[137,201,205],"dont":[138,149],"eaux":[140],"poissonneuses":[141],"p\u00eacheurs":[144],"toutes":[146],"origines,":[147],"rives":[151,180],"m\u00e9ridionales":[152,181],"fixent":[153],"populations":[155,185],"sah\u00e9liennes":[156],"chass\u00e9es":[157],"guerre":[160],"s\u00e9cheresse.":[163],"Depuis":[164],"milieu":[166],"route":[171],"goudronn\u00e9e":[172],"dynamise":[173],"liens":[175],"ces":[179,210],":":[182],"l'afflux":[183],"s'accompagne":[186],"d'innovations":[187],"flux":[191],"commerciaux":[192],"importants":[193],"(c\u00e9r\u00e9ales,":[194],"fruits":[195],"l\u00e9gumes,":[197],"poissons).":[198],"encadrements":[200],"\u00e9tatiques":[202],"non":[204],"ont":[206],"moment":[208],"accompagn\u00e9":[209],"dynamiques.":[211],"Leur":[212],"r\u00f4le":[213],"actuel":[214],"exprime":[215],"l'Etat":[219],"tchadien.":[220],"Cependant,":[221],"l'efficacit\u00e9":[222],"r\u00e9gulations":[224],"traditionnelles":[225],"explique":[226],"raret\u00e9":[228],"conflits,":[230],"malgr\u00e9":[231],"l'augmentation":[232],"pression":[235],"conflits":[242],"d'usages":[243],"latents":[244],"activit\u00e9s":[246],"(agriculture,":[247],"\u00e9levage).":[248]},"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2016-06-24T00:00:00"}