Identifying climate risk causing maize (Zea mays L.) yield fluctuation by time-series data

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	Identifying climate risk causing maize (Zea mays L.) yield fluctuation by time-series data
	Ji, Yuhe ; Zhou, Guangsheng ; Wang, Lixia ; Wang, Shudong ; Li, Zongshan
刊名	NATURAL HAZARDS
	2019-04
卷号	96 期号:3 页码:1213-1222
关键词	Climate risk Grain crop Maize yield High temperature Precipitation Trend base line method
ISSN号	0921-030X
英文摘要	A long time series in crop yield is usually expressed as a long-term trend and a short-term fluctuation due to agricultural technological advance and climatic anomaly. The real climate risk is related to the short-term fluctuation in crop yield. In the paper, the climate risk of maize yield response to long-term climate variables is tested with the long time series (1961-2015) by a trend base line method. The long time series of maize yield is divided into short-term fluctuating meteorological yield and long-term trend yield. The long time series of climate variables are also divided into fluctuating variables and trend variables. After that, Pearson correlation analysis between fluctuating maize yield and fluctuating climate variables is used to identify risk factor causing maize yield fluctuation. Our results reveal that the main risk factors are night-time precipitation and extreme high temperature in growing season. Comparing climate risks in maize-producing provinces, much more climate risks are identified in some regions such as Liaoning province. The results provide useful information for reducing maize yield loss under climatic change.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42742]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China 3.Minist Ecol & Environm Peoples Republ China, Satellite Environm Ctr, Beijing 100094, Peoples R China 4.Chinese Acad Meteorol Sci, State Key Lab Severe Weather LASW, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Ji, Yuhe,Zhou, Guangsheng,Wang, Lixia,et al. Identifying climate risk causing maize (Zea mays L.) yield fluctuation by time-series data[J]. NATURAL HAZARDS,2019,96(3):1213-1222.
APA	Ji, Yuhe,Zhou, Guangsheng,Wang, Lixia,Wang, Shudong,&Li, Zongshan.(2019).Identifying climate risk causing maize (Zea mays L.) yield fluctuation by time-series data.NATURAL HAZARDS,96(3),1213-1222.
MLA	Ji, Yuhe,et al."Identifying climate risk causing maize (Zea mays L.) yield fluctuation by time-series data".NATURAL HAZARDS 96.3(2019):1213-1222.