干旱区生态环境知识资源中心(Arid): Enhanced growth resistance but no decline in growth resilience under long-term extreme droughts

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DOI	10.1111/gcb.17038
	Enhanced growth resistance but no decline in growth resilience under long-term extreme droughts
	Wang, Xiaona; Xu, Taoran; Xu, Chenxi; Liu, Hongyan; Chen, Zhenju; Li, Zongshan; Li, Ximeng; Wu, Xiuchen
通讯作者	Wu, XC
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2024
卷号	30 期号:1
英文摘要	The frequency, intensity, and duration of extreme droughts, with devastating impacts on tree growth and survival, have increased with climate change over the past decades. Assessing growth resistance and resilience to drought is a crucial prerequisite for understanding the responses of forest functioning to drought events. However, the responses of growth resistance and resilience to extreme droughts with different durations across different climatic zones remain unclear. Here, we investigated the spatiotemporal patterns in growth resistance and resilience in response to extreme droughts with different durations during 1901-2015, relying on tree-ring chronologies from 2389 forest stands over the mid- and high-latitudinal Northern Hemisphere, species-specific plant functional traits, and diverse climatic factors. The findings revealed that growth resistance and resilience under 1-year droughts were higher in humid regions than in arid regions. Significant higher growth resistance was observed under 2-year droughts than under 1-year droughts in both arid and humid regions, while growth resilience did not show a significant difference. Temporally, tree growth became less resistant and resilient to 1-year droughts in 1980-2015 than in 1901-1979 in both arid and humid regions. As drought duration lengthened, the predominant impacts of climatic factors on growth resistance and resilience weakened and instead foliar economic traits, plant hydraulic traits, and soil properties became much more important in both climatic regions; in addition, such trends were also observed temporally. Finally, we found that most of the Earth system models (ESMs) used in this study overestimated growth resistance and underestimated growth resilience under both 1-year and 2-year droughts. A comprehensive ecophysiological understanding of tree growth responses to longer and intensified drought events is urgently needed, and a specific emphasis should be placed on improving the performance of ESMs.
英文关键词	drought duration Earth system model extreme drought resilience resistance tree-ring chronologies
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001108330800001
WOS关键词	ECOSYSTEM STABILITY ; NITROGEN ADDITION ; INCREASED PRECIPITATION ; TEMPORAL STABILITY ; ROOT PRODUCTION ; WATER ; DIVERSITY ; PRODUCTIVITY ; BIODIVERSITY ; RESPONSES
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403978
推荐引用方式 GB/T 7714	Wang, Xiaona,Xu, Taoran,Xu, Chenxi,et al. Enhanced growth resistance but no decline in growth resilience under long-term extreme droughts[J],2024,30(1).
APA	Wang, Xiaona.,Xu, Taoran.,Xu, Chenxi.,Liu, Hongyan.,Chen, Zhenju.,...&Wu, Xiuchen.(2024).Enhanced growth resistance but no decline in growth resilience under long-term extreme droughts.GLOBAL CHANGE BIOLOGY,30(1).
MLA	Wang, Xiaona,et al."Enhanced growth resistance but no decline in growth resilience under long-term extreme droughts".GLOBAL CHANGE BIOLOGY 30.1(2024).