DOI: 10.2166/wcc.2015.044
论文题名: Trend analysis in climatic variables and impacts on rice yield in Nigeria
作者: Akinbile C.O. ; Akinlade G.M. ; Abolude A.T.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2015
卷: 6, 期: 3 起始页码: 534
结束页码: 543
语种: 英语
英文关键词: Nigeria
; Rice yield
; Trend analysis
; Weather parameters
英文摘要: The effects of changes in meteorological parameters on rice yield variations were considered. Weather parameters, temperature (T), rainfall (R), relative humidity (RH) and solar radiation (SR), and rice yield variation for Ibadan were analyzed. Meteorological parameters were obtained from the International Institute for Tropical Agriculture while rice yield data were obtained from the Africa Rice Centre both in Nigeria for three decades (1980-2010). Trends analysis of past and recent variations using the weather parameters obtained showed trends of variability of each parameter with respect to rice yield. Mann-Kendall trend and Sen's slope tests were performed on the respective meteorological variables while correlation, multiple regression and variability index (VI) were also computed for these parameters. Results showed that T, RH and rice yield were negative and decreased significantly (P < 0.001) while R and SR showed statistically non-significant increasing trends in the last three decades. R and T decreased at the rate of 3% per year and 0.03% per decade, respectively. Results of annual VI showed that decreases observed in RH, SR and rice yield were rather recent. T, SR and R were found to have the most significant effect on rice yield of all the meteorological parameters considered. © IWA Publishing 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67662
Appears in Collections: 气候减缓与适应
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作者单位: Department of Agricultural and Environmental Engineering, Federal University of Technology, Akure, Nigeria
Recommended Citation:
Akinbile C.O.,Akinlade G.M.,Abolude A.T.. Trend analysis in climatic variables and impacts on rice yield in Nigeria[J]. Journal of Water and Climate Change,2015-01-01,6(3)