globalchange  > 气候变化与战略
DOI: 10.1007/s11069-020-04475-x
论文题名:
Assessment of agricultural drought during crop-growing season in the Sudano–Sahelian region of Cameroon
作者: Njouenwet I.; Vondou D.A.; Fita Dassou E.; Ayugi B.O.; Nouayou R.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 106, 期:1
起始页码: 561
结束页码: 577
语种: 英语
中文关键词: 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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169258
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Njouenwet I.,Vondou D.A.,Fita Dassou E.,et al. Assessment of agricultural drought during crop-growing season in the Sudano–Sahelian region of Cameroon[J]. Natural Hazards,2021-01-01,106(1)
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