干旱区生态环境知识资源中心(Arid): Interaction of age and elevation on xylogenesis in Juniperus przewalskii in a cold and arid region

Arid

DOI	10.1016/j.agrformet.2023.109480
	Interaction of age and elevation on xylogenesis in Juniperus przewalskii in a cold and arid region
	Zhang, Junzhou; Gou, Xiaohua; Rademacher, Tim; Wang, Lijuan; Li, Yulin; Sun, Qipeng; Wang, Fang; Cao, Zongying
通讯作者	Zhang, JZ ; Gou, XH
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2023
卷号	337
英文摘要	Exogenous factors (such as temperature and water availability) as well as endogenous factors (such as tree age) have effects on cambial phenology and intra-annual tree growt dynamics. However, how these factors interac-tively influence this physiological process remains unclear. Here, we compared biweekly cambial activity, timing and duration of xylogenesis in adult (< 250 yr) and old (> 400 yr) trees of Juniperus przewalskii Kom. along an altitudinal gradient on the northeastern Tibetan Plateau. We found that the onset of cell production was 10-11 days earlier in adult than in old trees, both at high and low elevations. However, the end of cell production was mainly correlated with water availability varying with elevation, regardless of age. In addition to earlier growth onset, adult trees were characterized by a longer growing season and higher growth rates, resulting in a higher number of xylem cells. We found that at relatively wet high elevations, tree age exerts a more dominant control on cell production, whereas at relatively dry low elevations, the effect of tree age on tree growth became weak or negligible. Our study demonstrates that age interacts with environmental constraints to determine intra-annual growth dynamics in this cold and arid region.
英文关键词	Altitude Cambial activity Drought Temperature Tibetan plateau Wood formation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001001494700001
WOS关键词	QILIAN JUNIPER ; ALTITUDINAL GRADIENT ; GROWING-SEASON ; RING-WIDTH ; GROWTH ; CLIMATE ; TEMPERATURE ; PHENOLOGY ; SIZE ; PRECIPITATION
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395005
推荐引用方式 GB/T 7714	Zhang, Junzhou,Gou, Xiaohua,Rademacher, Tim,et al. Interaction of age and elevation on xylogenesis in Juniperus przewalskii in a cold and arid region[J],2023,337.
APA	Zhang, Junzhou.,Gou, Xiaohua.,Rademacher, Tim.,Wang, Lijuan.,Li, Yulin.,...&Cao, Zongying.(2023).Interaction of age and elevation on xylogenesis in Juniperus przewalskii in a cold and arid region.AGRICULTURAL AND FOREST METEOROLOGY,337.
MLA	Zhang, Junzhou,et al."Interaction of age and elevation on xylogenesis in Juniperus przewalskii in a cold and arid region".AGRICULTURAL AND FOREST METEOROLOGY 337(2023).