气候变化领域集成服务门户(CCPortal): Assessment of agricultural drought during crop-growing season in the Sudano

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DOI	10.1007/s11069-020-04475-x
	Assessment of agricultural drought during crop-growing season in the Sudano–Sahelian region of Cameroon
	Njouenwet I.; Vondou D.A.; Fita Dassou E.; Ayugi B.O.; Nouayou R.
发表日期	2021
ISSN	0921030X
起始页码	561
结束页码	577
卷号	106 期号:1
英文摘要	Drought is a recurrent phenomenon in the Sudano–Sahelian region of Cameroon. However, it has received very little attention, especially, on its impacts on the growing season of crops. To fill this gap, this study assessed the drought hazard using standardized precipitation index at a 3-month scale, and phenology of the main crops in 19 rainfall stations in the Sudano–Sahelian region of Cameroon for the period 1980–2012. The trend of drought was studied using the Mann-Kendall technique. The agricultural drought hazard was quantified based on its frequency and intensity. Results show that there is a significant trend toward a more humid crop-growing period in the northern and southeastern parts of the study area, but significant dry trends during the maize and peanut growing periods in the southwestern part of the study area. Drought occurrence rates are 7.09, 4.22, and 3.17% for the moderate, severe, and extreme, respectively. Areas featuring high and very high agricultural drought hazards are distributed in the far north, central, and the southeastern parts of the study domain. Furthermore, the Sahelian and Sudanian climatic conditions were found to be very high agricultural drought hazard zones, especially, where the maize and peanut grain crops are concerned. However, significant dry trends and very high agricultural drought hazard zones during the maize and peanut growing periods are catastrophic for agriculture and, therefore, food security. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.
关键词	Drought hazard Drought occurrence Growing period Phenology Sudano–Sahelian region
英文关键词	agricultural production; climate effect; drought; dry season; growing season; maize; phenology; precipitation (climatology); seasonal variation; trend analysis; Cameroon; Arachis hypogaea
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206459
作者单位	Laboratory of Environmental Modeling and Atmospheric Physics, Department of Physics, University of Yaounde 1, P.O. Box 812, Yaoundé, Cameroon; Laboratoire Mixte International “Dynamique des écosystèmes continentaux d’Afrique Centrale en contexte de changements globaux” (LMI DYCOFAC), “Institut de Recherche pour le Développement” (IRD, University of Yaoundé 1, IRGM), IRD P.O. Box 1857, Yaoundé, Cameroon; Department of Meteorology, Climatology, Hydrology and Pedology, The National Advanced School of Engineering, University of Maroua, P.O. Box 46, Maroua, Cameroon; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative innovation Centre of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Laboratory of Geophysics and Geoexploration, Department of Physics, University of Yaounde 1, Yaounde, Cameroon
推荐引用方式 GB/T 7714	Njouenwet I.,Vondou D.A.,Fita Dassou E.,等. Assessment of agricultural drought during crop-growing season in the Sudano–Sahelian region of Cameroon[J],2021,106(1).
APA	Njouenwet I.,Vondou D.A.,Fita Dassou E.,Ayugi B.O.,&Nouayou R..(2021).Assessment of agricultural drought during crop-growing season in the Sudano–Sahelian region of Cameroon.Natural Hazards,106(1).
MLA	Njouenwet I.,et al."Assessment of agricultural drought during crop-growing season in the Sudano–Sahelian region of Cameroon".Natural Hazards 106.1(2021).