Flooding and Flood Risk Reduction in Nigeria: Cardinal Gaps

Nkwunonwo Uc, W. Malcolm, Baily Brian
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引用次数: 53

Abstract

This study reflects on critical issue relating to flooding in Nigeria such as causes, impacts and remedies. Flooding which arguably has been more damaging for Nigeria has worsened recently due to a number of possible factors including rapid population growth, urbanization, poor urban planning and climate change especially in increased frequency and intensity of rainfall. Attempts to tackle the hazard in Nigeria appear to be limited by lack of flood data and other remote causes which are yet to be identified. In view of this background, the present study reviews the widespread flooding in Nigeria and efforts to tackle it. Over the period 1985 to 2014, flooding in Nigeria has affected more than 11 million lives with a total of 1100 deaths and property damage exceeding US$17 billion. Lagos state has experienced most of the floods while more frequent floods are recorded in Niger, Adamawa, Oyo, Kano and Jigawa states possibly due to the influence of rivers Niger, Benue, Ogun and Hadeja. It is argued that more robust and scientific approaches to flood risk reduction such as: flood modeling and vulnerability assessment are lacking. To align the focus of flood risk reduction in Nigeria with the objectives of such a task in more developed countries (such as the United States, United Kingdom and the Netherlands) which is among three fundamental issues to be addressed in Nigeria, the present study makes pivotal recommendations.
尼日利亚的洪水和洪水风险减少:主要差距
这项研究反映了与尼日利亚洪水有关的关键问题,如原因、影响和补救措施。由于人口快速增长、城市化、糟糕的城市规划和气候变化,特别是降雨频率和强度的增加,洪水可以说对尼日利亚的破坏性更大,最近又恶化了。由于缺乏洪水数据和其他尚未确定的远程原因,尼日利亚解决这一危害的努力似乎受到限制。鉴于这一背景,本研究回顾了尼日利亚广泛的洪水以及为解决这一问题所做的努力。1985年至2014年期间,尼日利亚的洪水影响了1100多万人的生命,造成1100人死亡,财产损失超过170亿美元。拉各斯州经历了大部分洪水,而尼日尔、阿达马瓦、奥约、卡诺和吉加瓦州的洪水记录更为频繁,这可能是由于尼日尔河、贝努埃河、奥贡河和哈德加河的影响。作者认为,目前还缺乏更可靠、更科学的方法来降低洪水风险,如洪水建模和脆弱性评估。为了使尼日利亚减少洪水风险的重点与更发达国家(如美国、英国和荷兰)的这类任务的目标保持一致,这是尼日利亚需要解决的三个基本问题之一,本研究提出了关键建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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