Shifts in cultivar and planting date have regulated rice growth duration under climate warming in China since the early 1980s

doi:10.1073/pnas.1612460114

	Shifts in cultivar and planting date have regulated rice growth duration under climate warming in China since the early 1980s
	Hu, Xunyu 1; Huang, Yao1 ; Sun, Wenjuan ; Yu, Lingfei
	2017
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
卷号	247 页码:34-41
摘要	Climate warming accelerates crop development and shortens growth duration. The adoption of new cultivars and changes in planting date may either retard or amplify this acceleration. However, the extent to which the cultivar and planting date shifts have impacted rice growth duration under climate warming remains largely unknown. Using an up-to-date data series from 82 agro-meteorological stations in China where rice phenology was observed from 1981 to 2012, we quantified the impacts of climate warming, cultivar and planting date shifts on rice growth duration based on a degree-days calculation. The results indicate that climate warming shortened the growth duration length (GDL) between emergence and maturity at rates of 4.2 +/- 0.7 (mean +/- SE), 1.8 +/- 0.3 and 3.9 +/- 0.5days 10-yr(-1) for single, early and late rice. GDL shortening was more pronounced in the vegetative phase than in the reproductive phase for single and early rice, but it was opposite for late rice system. Cultivar shifts prolonged the GDL at rates of 6.1 +/- 1.0 and 1.7 +/- 0.6days 10-yr(-1) for single and early rice but induced GDL shortening of 4.1 +/- 1.6days 10-yr(-1) for late rice. The effect of planting date shifts (advanced or delayed) on GDL change was variable and depended on the rice cropping system. On average, climate warming accelerated crop development, with a relative contribution to GDL changes of -40% in single rice, -45% in early rice, and -35% in late rice. Cultivar shifts compensated for the GDL shortening induced by climate warming in single and early rice with the relative contribution of 58% and 44%, respectively, but accelerated crop development in late rice with a contribution of -37%. Nevertheless, the planting date at two-thirds of the late rice stations was significantly delayed, which retarded the acceleration by 29% in terms of GDL changes.
关键词	Rice Growth duration Climate warming Cultivar Planting date
学科领域	Science & Technology - Other Topics
DOI	10.1073/pnas.1612460114
收录类别	SCI
语种	英语
WOS关键词	GRAIN-YIELD ; RESPONSES ; TEMPERATURE ; DECADES ; CO2
WOS记录号	WOS:000395099500029
出版者	ELSEVIER SCIENCE BV
文献子类	Article
出版地	AMSTERDAM
EISSN	1873-2240
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41530533]
作者邮箱	huangyao@ibcas.ac.cn
作品OA属性	Green Published, Bronze
引用统计	被引频次：52[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22129
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hu, Xunyu,Huang, Yao,Sun, Wenjuan,et al. Shifts in cultivar and planting date have regulated rice growth duration under climate warming in China since the early 1980s[J]. AGRICULTURAL AND FOREST METEOROLOGY,2017,247:34-41.
APA	Hu, Xunyu,Huang, Yao,Sun, Wenjuan,&Yu, Lingfei.(2017).Shifts in cultivar and planting date have regulated rice growth duration under climate warming in China since the early 1980s.AGRICULTURAL AND FOREST METEOROLOGY,247,34-41.
MLA	Hu, Xunyu,et al."Shifts in cultivar and planting date have regulated rice growth duration under climate warming in China since the early 1980s".AGRICULTURAL AND FOREST METEOROLOGY 247(2017):34-41.

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