Legacy effects of spring phenology on vegetation growth under preseason meteorological drought in the Northern Hemisphere

doi:10.1016/j.agrformet.2021.108630

	Legacy effects of spring phenology on vegetation growth under preseason meteorological drought in the Northern Hemisphere
	Zeng, Zhaoqi 2,3; Wu, Wenxiang 2,4; Ge, Quansheng 2; Li, Zhaolei 5,6; Wang, Xiaoyue 2; Zhou, Yang 2; Zhang, Zhengtao 7,8; Li, Yamei 3,9; Huang, Han 2,3; Liu, Guangxu 10
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2021-11-15
卷号	310 页码:13
关键词	Preseason meteorological drought Spring phenology Coupling effects Vegetation growth Northern Hemisphere
ISSN号	0168-1923
DOI	10.1016/j.agrformet.2021.108630
通讯作者	Wu, Wenxiang(wuwx@igsnrr.ac.cn) ; Penuelas, Josep(Josep.Penuelas@uab.cat)
英文摘要	Revealing the physiological mechanisms and the implications of changes in spring phenology is crucial for understanding ecosystem productivity and functioning. Previous studies reported an increased vegetation growth associated with warming-induced earlier spring phenology, which can in turn make feedback to the climate systems and increase summer drought. The effects of preseason drought on spring phenology, especially their combined implications for vegetation growth, however, remain largely unknown. We first used four standard methods to extract dates for the start of spring phenology (SOS) from Normalized Difference Vegetation Index (NDVI3g) data across extratropical ecosystems in the Northern Hemisphere (>30 degrees N) during 1982-2015, then calculated the sensitivity of SOS to preseason meteorological drought (preseason drought) using the Standardized Precipitation-Evapotranspiration Index (SPEI), and finally analyzed the coupling legacy effects of preseason drought and advanced SOS on seasonal vegetation growth across biomes. Our findings indicated that between 1982 and 2015 (1) SOS was positively correlated with preseason SPEI in 68.5% of pixels, 33.3% of which were significantly correlated (p < 0.05); the dominant timescales of preseason SPEI (preseason length) were 1 and 6 accumulated months. Mean SOS under extreme preseason drought also advanced in each biome. (2) Interestingly, SOS, rather than preseason drought or other climatic factors, had a dominant but opposite effect on spring (positively correlated) and summer (negatively correlated) vegetation growth. Most (86.4%) areas with increased spring growth were in regions with an earlier SOS, even under extreme preseason drought, but the combined effects of preseason drought and an earlier SOS greatly decreased summer vegetation growth in all biomes. Our results demonstrated that the preseason droughts during 1982-2015 had not yet reached the point beyond which they could overwhelm the role of warming in advancing spring phenology in most regions, but the earlier SOS induced by warming could exacerbate the effects of preseason drought and eventually have profound negative effects on vegetation growth in the middle and later stages of the growing season. This synthesis will advance our current understanding of mechanisms underlying atmosphere-biosphere feedbacks, and benefit biogeochemical models in simulating vegetation growth.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040101] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040304] ; Spanish Government grant[PID2019-110521GB-I00] ; Catalan Government grant[SGR 2017-1005]
WOS关键词	CLIMATE EXTREMES ; RESPONSES ; IMPACTS ; SHIFTS ; PRODUCTIVITY ; TEMPERATURE ; SENSITIVITY ; ECOSYSTEMS ; ONSET
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000698753900016
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Spanish Government grant ; Catalan Government grant
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/165640]
专题	中国科学院地理科学与资源研究所
通讯作者	Wu, Wenxiang; Penuelas, Josep
作者单位	1.CSIC, Global Ecol Unit CREAF CSIC UAB, Bellaterra 08193, Catalonia, Spain 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Dept Environm & Resources, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 5.Southwest Univ, Coll Resources & Environm, Chongqing 400715, Peoples R China 6.Southwest Univ, Acad Agr Sci, Chongqing 400715, Peoples R China 7.Beijing Normal Univ, Acad Disaster Reduct & Emergency Management, Fac Geog Sci, Minist Emergency Management, Beijing 100875, Peoples R China 8.Beijing Normal Univ, Minist Educ, Fac Geog Sci, Beijing 100875, Peoples R China 9.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 10.Gannan Normal Univ, Sch Geog & Environm Engn, Ganzhou 341000, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Zhaoqi,Wu, Wenxiang,Ge, Quansheng,et al. Legacy effects of spring phenology on vegetation growth under preseason meteorological drought in the Northern Hemisphere[J]. AGRICULTURAL AND FOREST METEOROLOGY,2021,310:13.
APA	Zeng, Zhaoqi.,Wu, Wenxiang.,Ge, Quansheng.,Li, Zhaolei.,Wang, Xiaoyue.,...&Penuelas, Josep.(2021).Legacy effects of spring phenology on vegetation growth under preseason meteorological drought in the Northern Hemisphere.AGRICULTURAL AND FOREST METEOROLOGY,310,13.
MLA	Zeng, Zhaoqi,et al."Legacy effects of spring phenology on vegetation growth under preseason meteorological drought in the Northern Hemisphere".AGRICULTURAL AND FOREST METEOROLOGY 310(2021):13.