干旱区生态环境知识资源中心(Arid): Extended xylogenesis and stem biomass production inJuniperus przewalskiiKom. during extreme late-season climatic events

Arid

DOI	10.1007/s13595-020-01008-1
	Extended xylogenesis and stem biomass production inJuniperus przewalskiiKom. during extreme late-season climatic events
	Zhang, Junzhou; Alexander, M. Ross; Gou, Xiaohua; Deslauriers, Annie; Fonti, Patrick; Zhang, Fen; Pederson, Neil
通讯作者	Gou, XH
来源期刊	ANNALS OF FOREST SCIENCE
ISSN	1286-4560
EISSN	1297-966X
出版年	2020
卷号	77 期号:4
英文摘要	Key message Late-season extreme climatic events induced variations in wood density and extended growth for more than a month in 2016 inJuniperus przewalskiiKom. growing on the Northeastern Tibetan Plateau, suggesting extraordinary growth resilience of the species in response to short extreme events over the cold and arid region. Context Monitoring xylem formation (xylogenesis) during extreme meteorological events helps assessing climate change impacts on tree growth. Aims For better insight into tree-growth responses, here we compare the intra-annual formation of annual ring with and without intra-annual density fluctuation inJ. przewalskiiin a cold and arid environment on the Northeastern Tibetan Plateau. Methods Cambial phenology and xylogenesis observations of five mature trees during the 2016 intra-annual density fluctuation growth ring and the five-preceding year (2011-2015) were used for comparison. The frequency of population level occurrence of intra-annual density fluctuation in 2016 was examined on additional 50 randomly selected trees. Results The return of precipitation in conjunction with warm temperatures after summer drought promoted the growth resumption in 64% of our study trees, resulting in the observed intra-annual density fluctuation. These trees experienced a growing season 1 month longer than trees without intra-annual density fluctuation. The extended growth period resulted in a 17% increase in stem biomass in trees that experienced intra-annual density fluctuation. Conclusion Our results highlight the extraordinary resilience ofJ. przewalskiitrees in response to extreme climatic events in the cold and dry conditions of the Tibetan Plateau.
英文关键词	Climate change Drought False rings Resilience Xylogenesis
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000577641500001
WOS关键词	INTRAANNUAL DENSITY-FLUCTUATIONS ; TREE-RING WIDTH ; FALSE RINGS ; PINUS-SYLVESTRIS ; GROWTH ; FOREST ; CARBON ; WATER ; WOOD ; L.
WOS类目	Forestry
WOS研究方向	Forestry
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326770
作者单位	[Zhang, Junzhou; Gou, Xiaohua; Zhang, Fen] Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; [Zhang, Junzhou; Alexander, M. Ross; Pederson, Neil] Harvard Univ, Harvard Forest, 324 North Main St, Petersham, MA 01366 USA; [Zhang, Junzhou; Gou, Xiaohua; Zhang, Fen] Gansu Liancheng Forest Ecosyst Field Observat & R, Lanzhou 730333, Peoples R China; [Deslauriers, Annie] Univ Quebec Chicoutimi, Dept Sci Fondamentales, 555 Blvd Univ, Chicoutimi, PQ G7H 2B1, Canada; [Fonti, Patrick] WSL Swiss Fed Res Inst, Landscape Dynam, Birmensdorf, Switzerland
推荐引用方式 GB/T 7714	Zhang, Junzhou,Alexander, M. Ross,Gou, Xiaohua,et al. Extended xylogenesis and stem biomass production inJuniperus przewalskiiKom. during extreme late-season climatic events[J]. 兰州大学,2020,77(4).
APA	Zhang, Junzhou.,Alexander, M. Ross.,Gou, Xiaohua.,Deslauriers, Annie.,Fonti, Patrick.,...&Pederson, Neil.(2020).Extended xylogenesis and stem biomass production inJuniperus przewalskiiKom. during extreme late-season climatic events.ANNALS OF FOREST SCIENCE,77(4).
MLA	Zhang, Junzhou,et al."Extended xylogenesis and stem biomass production inJuniperus przewalskiiKom. during extreme late-season climatic events".ANNALS OF FOREST SCIENCE 77.4(2020).