No. Japan International Ministry of Cooperation Agency Agricultural Development Study on Sahel Oasis Development In the Republic of Niger Final Report - First volume : The action plan - November 2009 Japan International Research Center for Agricultural Sciences (JIRCAS) ＲＤＤ ＪＲ 09-069 Study on Sahel Oases development In the Republic of Niger Study Area Equator LEGEND Border Regional limit Study area National road Regional capital Tahoua Agadez Niamey (Region) (Niamey (Capital)) Diffa Niger River Zinder Isohyet 200mm Isohyets 500mm km Maradi Tillabery Dosso 0 200 100 200 300 400 500 Region Total Part of the Niamey Tillabery Tahoua Dosso Maradi Indicator Niger study area 2 P Surface area（kmP ）* 255 97,251 113,371 33,844 41,796 1.,67,000 22.6％ Cultivated surface area in ha (main 16,300 1,074,100 922,000 833,600 994,300 5,151,400 74.5％ cereals) ** Population * 707,951 1, 889,515 1.972,729 1, 505,864 2.235,748 11, 060,291 69.7％ Main ethnic group Zarma Zarma Haoussa Zarma Haoussa e F F Sources：*Definite results of the general census of population and housing (RGP/H-2001) (1 P e bruary 2005), **Statistics document Edition 1996-2000 (July 2003) i 66 reservoirs concerned by the study Légende : Chef lieu de Région Sites concernés par le plan d’action (36 ouvrages) Sites des projets pilotes (4 ouvrages) Sites non concernés par le plan d’action et les projets pilotes i i Boukari Kouara Fonéko Karta Fanakakoira Agadez Gaigorou Hamagorou Molia Tondibia Gorou Gadiyaw Edouk Bonkor Kongou Gorou Changnassou Akoukou Jaja Tarwada Mari Kandoum Bougiri Sanam Guidan Bado Koygolo Bouki Edir Wantajé Bokologi Tahoua Magagi Rogo Soura Oubandoma Roura Tillabéry Zinder Aboka Bourdi II Faréy Gorou 3 Bourdi I Maradi Diffa Niamey Zongon Roukouroum Faréy Gorou 2 Dosso Balidey Gourgoutoulou Sorey Kogardeye Rafin Wada Milli Koré Béchémi Bakassomouba Danja Kanembakaché Bartchawel Koumchi Soco Niger Béri Béri Rouda Goumanday Dan Gado Aval CRD Iyataoua Tchantchergou Kalgo Malan Kadi Karazomé Goumar Tounga Maïkomsa Tchidafawa Km Djebou Gambéwa Gaya Toulmey Koiré Kobeday 0 100 200 300 400 500 Tchankargui Loufari Koira Tanda .