Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China

To improve our understanding of how climate change is impacting forest ecosystems in the semi-arid regions of northwestern China, we developed a ring-width chronology for Betula albosinensis growing in the eastern Qilian mountains. We assessed recent radial growth trends and the response of radial g...

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Autores principales:	Xiaoya Yan, Qian Li, Yang Deng, Linlin Gao, Xiaohua Gou
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Winter warming Betula albosinensis Tree-ring eastern Qilian mountains Radial growth reduction Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/275e3219fbe84f409ee2ebd2fc7ef12c
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spelling	oai:doaj.org-article:275e3219fbe84f409ee2ebd2fc7ef12c2021-12-01T04:30:40ZWarming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China1470-160X10.1016/j.ecolind.2020.106956https://doaj.org/article/275e3219fbe84f409ee2ebd2fc7ef12c2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20308955https://doaj.org/toc/1470-160XTo improve our understanding of how climate change is impacting forest ecosystems in the semi-arid regions of northwestern China, we developed a ring-width chronology for Betula albosinensis growing in the eastern Qilian mountains. We assessed recent radial growth trends and the response of radial growth to climatic factors. The ring width chronology and the basal area increment (BAI) indicate that radial growth of Betula albosinensis has decreased since 1986 CE. Our results show that radial growth is negatively correlated with winter temperature, but that correlations between tree growth and monthly scPDSI from previous June to current September are not significant. Thus, the radial growth of Betula albosinensis from the eastern Qilian Mountains is mainly limited by winter temperature, not by moisture. Winter temperature may affect growth in several ways; for example, higher winter temperatures can increase metabolic stress and lead to earlier bud break, thereby increasing the risk of spring frost damage. In the context of future climate warming, our findings indicate that it is essential to assess growth responses of different tree species growing in arid and semi-arid areas to better predict changes in forest dynamics and carbon cycling.Xiaoya YanQian LiYang DengLinlin GaoXiaohua GouElsevierarticleWinter warmingBetula albosinensisTree-ringeastern Qilian mountainsRadial growth reductionEcologyQH540-549.5ENEcological Indicators, Vol 120, Iss , Pp 106956- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Winter warming Betula albosinensis Tree-ring eastern Qilian mountains Radial growth reduction Ecology QH540-549.5
spellingShingle	Winter warming Betula albosinensis Tree-ring eastern Qilian mountains Radial growth reduction Ecology QH540-549.5 Xiaoya Yan Qian Li Yang Deng Linlin Gao Xiaohua Gou Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China
description	To improve our understanding of how climate change is impacting forest ecosystems in the semi-arid regions of northwestern China, we developed a ring-width chronology for Betula albosinensis growing in the eastern Qilian mountains. We assessed recent radial growth trends and the response of radial growth to climatic factors. The ring width chronology and the basal area increment (BAI) indicate that radial growth of Betula albosinensis has decreased since 1986 CE. Our results show that radial growth is negatively correlated with winter temperature, but that correlations between tree growth and monthly scPDSI from previous June to current September are not significant. Thus, the radial growth of Betula albosinensis from the eastern Qilian Mountains is mainly limited by winter temperature, not by moisture. Winter temperature may affect growth in several ways; for example, higher winter temperatures can increase metabolic stress and lead to earlier bud break, thereby increasing the risk of spring frost damage. In the context of future climate warming, our findings indicate that it is essential to assess growth responses of different tree species growing in arid and semi-arid areas to better predict changes in forest dynamics and carbon cycling.
format	article
author	Xiaoya Yan Qian Li Yang Deng Linlin Gao Xiaohua Gou
author_facet	Xiaoya Yan Qian Li Yang Deng Linlin Gao Xiaohua Gou
author_sort	Xiaoya Yan
title	Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China
title_short	Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China
title_full	Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China
title_fullStr	Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China
title_full_unstemmed	Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China
title_sort	warming-induced radial growth reduction in betula albosinensis, eastern qilian mountains, china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/275e3219fbe84f409ee2ebd2fc7ef12c
work_keys_str_mv	AT xiaoyayan warminginducedradialgrowthreductioninbetulaalbosinensiseasternqilianmountainschina AT qianli warminginducedradialgrowthreductioninbetulaalbosinensiseasternqilianmountainschina AT yangdeng warminginducedradialgrowthreductioninbetulaalbosinensiseasternqilianmountainschina AT linlingao warminginducedradialgrowthreductioninbetulaalbosinensiseasternqilianmountainschina AT xiaohuagou warminginducedradialgrowthreductioninbetulaalbosinensiseasternqilianmountainschina
_version_	1718405832368979968

Warming-induced radial growth reduction in Betula albosinensis, eastern Qilian Mountains, China

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