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DOI	10.2166/wcc.2018.064
	Spatiotemporal trend analysis of rainfall and temperature; and its implications for crop production
	Worku T.; Khare D.; Tripathi S.K.
发表日期	2019
ISSN	20402244
起始页码	799
结束页码	814
卷号	10 期号:4
英文摘要	Global warming is a significant global environmental problem in the 21st century. The problem is high in developing countries, particularly sub-Saharan countries in which the majority of the population live on rainfed agriculture. The present study aimed to undertake spatiotemporal analysis of seasonal and annual rainfall and temperature and its implications. The MK test, Sen’s slope and precipitation concentration index (PCI) were applied. Finally, Pearson correlation analysis between climatic variables and crop production was analysed. The Mann–Kendall test results showed that the annual and seasonal rainfall trend was highly variable. The minimum and maximum temperatures have increased by 0.8 and 1.1∘ C/year, respectively. Based on PCI results, rainfall during the summer and spring seasons is moderately distributed as compared to annual and winter season rainfall. Based on these observations, the rainfall pattern and distribution of the area could be classified as irregular and erratic distribution. Results of correlation analysis between monthly and seasonal rainfall with crop production were insufficient to conclude the impact of rainfall and temperature on crop production. In view of this, the incidence of food shortage is a common occurrence. Therefore, depending on the historical trend of rainfall variability and prolonged temperature increase, appropriate coping and adaptation strategies need to be encouraged. © IWA Publishing 2019.
英文关键词	Climatic variables; Correlation analysis; Kendal; Mann; PCI; Sen’s slope; Trend analysis
语种	英语
scopus关键词	Correlation methods; Crops; Cultivation; Developing countries; Global warming; Climatic variables; Correlation analysis; Kendal; Mann; Trend analysis; Rain; annual variation; correlation; crop production; precipitation intensity; seasonal variation; spatiotemporal analysis; trend analysis; Sub-Saharan Africa
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147969
作者单位	Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, Roorkee, UA 247667, India
推荐引用方式 GB/T 7714	Worku T.,Khare D.,Tripathi S.K.. Spatiotemporal trend analysis of rainfall and temperature; and its implications for crop production[J],2019,10(4).
APA	Worku T.,Khare D.,&Tripathi S.K..(2019).Spatiotemporal trend analysis of rainfall and temperature; and its implications for crop production.Journal of Water and Climate Change,10(4).
MLA	Worku T.,et al."Spatiotemporal trend analysis of rainfall and temperature; and its implications for crop production".Journal of Water and Climate Change 10.4(2019).