气候变化领域集成服务门户(CCPortal): Age-related growth responses of birch to warming along an elevational gradient on Changbai Mountain

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DOI	10.1007/s10342-021-01438-0
	Age-related growth responses of birch to warming along an elevational gradient on Changbai Mountain
	Qi, Xi; Fang, Keyan; Du, Haibo; He, Jianan; He, Hongshi; Wu, Zhengfang
通讯作者	Du, HB ; Wu, ZF (通讯作者)
发表日期	2022
ISSN	1612-4669
EISSN	1612-4677
起始页码	293
结束页码	305
卷号	141 期号:2
英文摘要	Accelerated tree growth in the alpine treeline ecotone (ATE) has been linked to the recent rapid climate warming. However, the role of tree age and elevation in the growth response of trees to climate change remains unclear. Here, we developed basal area increment chronologies of Betula ermanii from the closed forest belt (CFB) at lower elevation to the ATE of Changbai Mountain with three tree age classes (young: 0-60 years, middle-aged: 60-120 years, and old: > 120 years). In ATE, all age classes of B. ermanii have been experiencing dramatic growth acceleration since 1981. Young trees, with higher temperature sensitivity, exhibited the most prominent warming-induced growth enhancement relative to middle and old-aged trees. In CFB, young and middle-aged trees exhibited similar sensitivity to the temperature increase during the warm period relative to the cold period, with strikingly accelerated growth enhancement trends. In contrast, old trees did not show any significant growth trend. Moreover, young trees in ATE showed significantly (p < 0.01) higher growth rates than those in CFB, whereas middle-aged trees in ATE showed significantly (p < 0.05) lower growth rates than those in CFB. Our results reveal that the response of tree growth to climate change varies with tree age and elevation. Therefore, these factors should be considered to avoid overestimation or underestimation of tree growth trends and bias in estimating potential forest production.
关键词	TREE-RING GROWTH CLIMATE-CHANGE BETULA-ERMANII ALPINE TREELINE ALTITUDINAL GRADIENTS PINUS-SYLVESTRIS GROWING-SEASON NORWAY SPRUCE FOREST STANDS WHITE SPRUCE
英文关键词	Tree growth; Climate change; Changbai Mountain; Age effect; Elevational gradient
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000743837200001
来源期刊	EUROPEAN JOURNAL OF FOREST RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260696
推荐引用方式 GB/T 7714	Qi, Xi,Fang, Keyan,Du, Haibo,et al. Age-related growth responses of birch to warming along an elevational gradient on Changbai Mountain[J]. 中国科学院青藏高原研究所,2022,141(2).
APA	Qi, Xi,Fang, Keyan,Du, Haibo,He, Jianan,He, Hongshi,&Wu, Zhengfang.(2022).Age-related growth responses of birch to warming along an elevational gradient on Changbai Mountain.EUROPEAN JOURNAL OF FOREST RESEARCH,141(2).
MLA	Qi, Xi,et al."Age-related growth responses of birch to warming along an elevational gradient on Changbai Mountain".EUROPEAN JOURNAL OF FOREST RESEARCH 141.2(2022).