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英文文献：Sensitivity of Crop Yield to Extreme Weather in Nigeria-尼日利亚农作物产量对极端天气的敏感性
英文文献作者：Ajetomobi, Joshua Olusegun
英文文献摘要：
This study analyzed how extreme weather conditions affect the mean and variability of the yields of 11 staple crops in Nigeria. The research involved the use of a pooled panel data of 36 states and the federal capital territory over the period of 1991-2012. The framework for analysis consisted of the production risk model developed by Just and Pope for yield estimation. Unit root tests and Maximum Likelihood Estimation techniques were used to obtain reliable estimates of the model’s parameters. The results showed that the mean and variance of the yield of all the staple crops were diversely influenced by extreme weather events.
该研究分析了极端天气条件如何影响尼日利亚11种主要作物的平均产量和产量变化。这项研究使用了1991-2012年间36个州和联邦首都地区的联合面板数据。分析框架由Just和Pope开发的产量估计生产风险模型组成。采用单位根检验和极大似然估计技术对模型参数进行了可靠估计。结果表明，极端天气事件对各主要农作物产量的均值和方差有不同程度的影响。
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