气候变化领域集成服务门户(CCPortal): Topography and age mediate the growth responses of Smith fir to climate warming in the southeastern Tibetan Plateau

CCPortal

DOI	10.1007/s00484-016-1148-5
	Topography and age mediate the growth responses of Smith fir to climate warming in the southeastern Tibetan Plateau
	Liu, B.; Wang, Y.; Zhu, H.; Liang, E.; Camarero, J. J.
通讯作者	Liang, E (通讯作者)
发表日期	2016
ISSN	0020-7128
EISSN	1432-1254
起始页码	1577
结束页码	1587
卷号	60 期号:10
英文摘要	The Tibetan Plateau holds some of the world's highest undisturbed natural treelines and timberlines. Such extreme environments constitute potentially valuable monitoring sites of the effects of climate warming on high-elevation forests. Here, we analyze a network of 21 Smith fir forests situated in the Sygera Mountains, southeastern Tibetan Plateau, using tree-ring width (TRW) and basal area increment (BAI) chronologies. Sampled sites encompassed a wide elevation gradient, from 3600 to 4400 m, including some treeline sites and diverse aspects and tree ages. In comparison with TRW series, BAI series better capture the long-term warming signal. Previous November and current April and summer temperatures are the dominant climatic factors controlling Smith fir radial growth. The mean inter-series correlations of TRW increased upwards, but the forest limit presented the highest potential to reconstruct past temperature variability. Moreover, the growth responses of young trees were less stable than those of trees older than 100 years. Climate warming is accelerating radial growth of Smith fir forest subjected to mesic conditions. Collectively, these findings confirm that the effects of site elevation and tree age should be considered when quantifying climate-growth relationships. The type of tree-ring data (BAI vs. TRW) is also relevant since BAI indices seem to be a better climatic proxy of low-frequency temperature signals than TRW indices. Therefore, site (e.g., elevation) and tree (e.g., age) features should be considered to properly evaluate the effects of climate warming on growth of high-elevation forests.
关键词	TREE-RING GROWTH SABINA-PRZEWALSKII PICEA-CRASSIFOLIA QILIAN MOUNTAINS BOREAL FOREST RADIAL GROWTH VARIABILITY SENSITIVITY TIMBERLINE CHRONOLOGIES
英文关键词	Basal area increment; Dendroecology; Tree-ring; Southeastern Tibetan Plateau; Topography; Tree age
语种	英语
WOS研究方向	Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology
WOS类目	Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology
WOS记录号	WOS:000385142400012
来源期刊	INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
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/258789
推荐引用方式 GB/T 7714	Liu, B.,Wang, Y.,Zhu, H.,et al. Topography and age mediate the growth responses of Smith fir to climate warming in the southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,60(10).
APA	Liu, B.,Wang, Y.,Zhu, H.,Liang, E.,&Camarero, J. J..(2016).Topography and age mediate the growth responses of Smith fir to climate warming in the southeastern Tibetan Plateau.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,60(10).
MLA	Liu, B.,et al."Topography and age mediate the growth responses of Smith fir to climate warming in the southeastern Tibetan Plateau".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 60.10(2016).