{"title":"Water availability in a Nigerian sub-catchment of River Niger and its implications for food security","authors":"R. Obateru, O. Ogunkoya, D. D. Ajayi","doi":"10.1080/19376812.2021.2003832","DOIUrl":null,"url":null,"abstract":"ABSTRACT This study aims at assessing runoff characteristics and water availability between 1955 and 2019 in the Nigerian sub-catchment of River Niger upstream of Baro, central Nigeria, and the implication for food security in the nation. The discharge regime of the sub-catchment is characterized by single peak, which occurs in September. The sub-catchment’s runoff coefficient ranged between 23% and 32% for the period 1955−1970; 9% and 22% for 1971–1990; 45% and 55% for 1994–1999; and 15–33% for 2000–2019. The study observed a decline in river flow and water availability due to climate variability. This indicates impending problems of water crises and food insecurity.","PeriodicalId":44819,"journal":{"name":"African Geographical Review","volume":"42 1","pages":"157 - 169"},"PeriodicalIF":0.9000,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"African Geographical Review","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/19376812.2021.2003832","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOGRAPHY","Score":null,"Total":0}
引用次数: 2
Abstract
ABSTRACT This study aims at assessing runoff characteristics and water availability between 1955 and 2019 in the Nigerian sub-catchment of River Niger upstream of Baro, central Nigeria, and the implication for food security in the nation. The discharge regime of the sub-catchment is characterized by single peak, which occurs in September. The sub-catchment’s runoff coefficient ranged between 23% and 32% for the period 1955−1970; 9% and 22% for 1971–1990; 45% and 55% for 1994–1999; and 15–33% for 2000–2019. The study observed a decline in river flow and water availability due to climate variability. This indicates impending problems of water crises and food insecurity.
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