干旱区生态环境知识资源中心(Arid): Drivers of phenology shifts and their effect on productivity in northern grassland of China during 1984-2017-evidence from long-term observational data

Arid

DOI	10.1007/s00484-020-02046-0
	Drivers of phenology shifts and their effect on productivity in northern grassland of China during 1984-2017-evidence from long-term observational data
	Xu, Lingling; Zhang, Xianzhou; Wang, Yongli; Fu, Yang; Yan, Hao; Qian, Shuan; Cheng, Lu
通讯作者	Xu, LL
来源期刊	INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
ISSN	0020-7128
EISSN	1432-1254
英文摘要	Plant phenology under changing climate is a critical factor controlling terrestrial vegetation productivity. However, large uncertainties exist due to different data sources and phenological parameter extraction methods. In this study, we took advantage of a suite of long-term field observational data in northern grassland of China to investigate the drivers of phenological shifts and their effect on the maximum aboveground net primary productivity (ANPP(max)) across four representative grassland types during 1984-2017. Results showed that drivers of phenological events (i.e., start (SOS), end (EOS), and length (GSL) of the growing season) with warming influence dramatically differed among grassland types, indicating that the synergistic effect of temperature and precipitation should be highlighted. For temperate desert steppe and alpine meadow, GSL of dominant species was both significantly lengthened with temperature rising with averaged 0.94 days year(-1) (P < 0.001) and 1.15 days year(-1) (P < 0.001), respectively, while for typical temperate grassland, GSL was considerably shortened by an average of 0.58 days year(-1) (P < 0.01) as a result of water deficit caused by sharp warming and precipitation decreasing in summer and autumn. For most grassland types in our study, both SOS and GSL were significantly correlated with ANPP(max) under different precipitation gradients with SOS advanced and GSL extended leading to higher ANPP(max). Only the typical temperate grassland presents a relatively poor correlation between phenological events and productivity. Furthermore, compared with GSL, ANPP(max) was more sensitive to the advancement of SOS for every 1-day phenological change. However, the effect of EOS on ANPP(max) across the four grassland types was much weaker and unstable. There were spatial response differences between ANPP(max) and phenological transition events, with the temperate meadow grassland tending to be more sensitive compared with three other grassland types.
英文关键词	Phenology Maximum aboveground net primary productivity (ANPP(max)) Grassland Observational data
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000591118900002
WOS关键词	GROWING-SEASON ; SPRING PHENOLOGY ; CLIMATE-CHANGE ; VEGETATION INDEX ; CARBON SEQUESTRATION ; ATMOSPHERIC CO2 ; TREE PHENOLOGY ; VARIABILITY ; FOREST ; IMPACTS
WOS类目	Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology
WOS研究方向	Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328517
作者单位	[Xu, Lingling; Yan, Hao; Qian, Shuan; Cheng, Lu] Natl Meteorol Ctr, Beijing 100081, Peoples R China; [Zhang, Xianzhou] Chinese Acad Sci, Inst Geog Sci & Resources Res, Beijing 100101, Peoples R China; [Wang, Yongli] Ecol & Agrometeorol Ctr Inner Mongolia Autonomous, Hohhot 010051, Peoples R China; [Fu, Yang] Qinghai Inst Meteorol Sci, Xining 810001, Peoples R China
推荐引用方式 GB/T 7714	Xu, Lingling,Zhang, Xianzhou,Wang, Yongli,et al. Drivers of phenology shifts and their effect on productivity in northern grassland of China during 1984-2017-evidence from long-term observational data[J].
APA	Xu, Lingling.,Zhang, Xianzhou.,Wang, Yongli.,Fu, Yang.,Yan, Hao.,...&Cheng, Lu.
MLA	Xu, Lingling,et al."Drivers of phenology shifts and their effect on productivity in northern grassland of China during 1984-2017-evidence from long-term observational data".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY