尼日利亚西南部极端少旱季显著年生长季早期和晚期的降雨特征评估

IF 0.9 Q3 GEOGRAPHY

African Geographical Review Pub Date : 2022-03-27 DOI:10.1080/19376812.2022.2054437

A. O. Adeyefa

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引用次数: 1

摘要

本研究利用39年的日总降雨量，评估了尼日利亚西南部极端少旱季(LDS)显著年的早生季(EGS)和晚生季(LGS)降雨特征。1982年、1997年、2000年、2017年等16年LDS降水量(Abeokuta);1994(贝宁);1987年和2008年(Ikeja);1989年、1995年、2006年、2018年(伊洛林);1988年、1997年和2007年(伊巴丹);1995年和2017年(Ondo)显著(α = 0.05(上尾和下尾)，临界值Z = 1.645)。虽然13年是积极的，但只有3年是消极的。LDS降雨量的增加减少了EGS和LGS的长度，从而扭曲了农业上重要的降雨特征的时间。

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Assessment of rainfall characteristics of the early and late growing seasons during significant years of extreme little dry season in southwestern Nigeria

ABSTRACT The study assessed rainfall characteristics of early growing season (EGS) and late growing season (LGS) during significant years of extreme little dry season (LDS) in southwestern Nigeria using 39 years’ daily rainfall totals. LDS’s rainfall of 16 years including 1982, 1997, 2000, and 2017 (Abeokuta); 1994 (Benin); 1987 and 2008 (Ikeja); 1989, 1995, 2006, and 2018 (Ilorin); 1988, 1997, and 2007 (Ibadan); and 1995 and 2017 (Ondo) were significant (α = 0.05 (upper and lower tailed) with the critical value Z = 1.645). While 13 years were positively significant, only 3 were negative. Increased LDS’s rainfall has reduced the EGS and LGS’s lengths, consequently distorting the timing of agriculturally important rainfall characteristics.

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来源期刊

African Geographical Review GEOGRAPHY-

CiteScore

3.90

自引率

5.90%

发文量