Dausayin Hadejia-Nguru da ke jihar Yobe a arewacin Najeriya, waɗanda suka haɗa da tafkin Nguru, na da muhimmanci a fannin muhalli da tattalin arziki. Suna fuskantar barazanar raguwar ruwan sama a cikin 'yan shekarun nan, karuwar yawan jama'a da aikin gina madatsun ruwa. Dausayin yana cikin yankin Yobe-Komadugu na tafkin Chadi . An kafa su ne inda kogunan Hadejia da Jama’are. Kogin Yobe ne ya ratsa su, wanda ya ratsa gabas zuwa tafkin Chadi . Sun kwanta tsakanin Savanna na Sudan a kudu da kuma mafi bushewar Sahel a arewa. Wasu daga cikin ƙasashen suna fama da ambaliyar ruwa na dindindin, yayin da wasu sassan kuma suna ambaliya ne kawai a lokacin damina (watan Agusta da Satumba). Ruwan sama na shekara yana tsakanin 200-600 mm, a lokacin ƙarshen Mayu-Satumba. A wani lokaci dausayin na iya rufe har zuwa 3,000 km2 . Tsakanin Shekara ta 1964 da shekara ta 1971 sama da 2,000 kilomita 2 sun yi ambaliya. By 1983 kasa da 900 kilomita 2 sun yi ambaliya, kuma kasa da 300 kilomita 2 sun yi ambaliyar ruwa a shekarar fari ta 1984.