气候变化领域集成服务门户(CCPortal): Weakened maize phenological response to climate warming in China over 1981-2018 due to cultivar shifts

CCPortal

DOI	10.1016/j.accre.2022.08.007
	Weakened maize phenological response to climate warming in China over 1981-2018 due to cultivar shifts
	Luo, Yu-Chuan; Zhang, Zhao; Zhang, Liang-Liang; Zhang, Jing; Tao, Fu-Lu
发表日期	2022
ISSN	1674-9278
起始页码	710
结束页码	720
卷号	13 期号:5 页码:11
英文摘要	Assessing climate change impacts on crop phenology is essential for developing adaptation options. To better understand crop response and adaptation to climate change, there is an urgent need to investigate whether the impacts weakens and how crops responds to recent climate warming, as well as the roles of different drivers in crop phenology change. Here, we analyzed the spatiotemporal changes in maize phenology and the underlying mechanisms over 1981-2018 using up-to-date 6106 phenological observations at 327 agro-meteorological stations in China. We found that during 1981-2018 maize sowing and maturity dates were generally delayed by 0.6 and 1.2 d per decade, respectively, whereas heading date was advanced by 0.9 d per decade. Maize phenology was most negatively correlated with rising minimum temperature (night-time warming), followed by maximum (daytime) temperature, and least by mean temperature. The trends in maize phenology and the correlation between growth periods and temperature generally declined from 1981 to 1999 to 2000-2018 for both spring and summer maize, although climate warming during growth period did not slow down. The phenological response to temperature weakened mainly owing to agricultural managements, especially cultivar shifts. Climate change shortened growth period by 3.4 and 1.7 d per decade but cultivar shifts prolonged it by 4.5 and 2.1 d per decade for spring and summer maize, respectively. Our study highlights that maize phenology is more sensitive to night-time warming than daytime warming, and cultivar shifts far outweigh climate change. These findings foster the understanding of spatiotemporal dynamics of maize phenology and its drivers, which can benefit to develop effective climate change adaptation options for different regions.
英文关键词	Maize; Climate change; Phenology; Adaptation; Cultivars shift
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000874699900009
来源期刊	ADVANCES IN CLIMATE CHANGE RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273972
作者单位	Beijing Normal University; Beijing Normal University; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Natural Resources Institute Finland (Luke)
推荐引用方式 GB/T 7714	Luo, Yu-Chuan,Zhang, Zhao,Zhang, Liang-Liang,et al. Weakened maize phenological response to climate warming in China over 1981-2018 due to cultivar shifts[J],2022,13(5):11.
APA	Luo, Yu-Chuan,Zhang, Zhao,Zhang, Liang-Liang,Zhang, Jing,&Tao, Fu-Lu.(2022).Weakened maize phenological response to climate warming in China over 1981-2018 due to cultivar shifts.ADVANCES IN CLIMATE CHANGE RESEARCH,13(5),11.
MLA	Luo, Yu-Chuan,et al."Weakened maize phenological response to climate warming in China over 1981-2018 due to cultivar shifts".ADVANCES IN CLIMATE CHANGE RESEARCH 13.5(2022):11.