Isolated Trees in Two Tibetan Plateau Treelines Reveal Growth Plasticity to Harsh Conditions of the Little Ice Age

doi:10.3390/f13091371

	Isolated Trees in Two Tibetan Plateau Treelines Reveal Growth Plasticity to Harsh Conditions of the Little Ice Age
	Zheng, Jiacheng 1; Lyu, Lixin ; Zhang, Qibin
	2022
发表期刊	FORESTS
卷号	13 期号:9
摘要	Trees greater than 150 years old growing in the current treelines were most likely isolated tree outposts above previous treelines of the Little Ice Age (LIA). An intuitive question is, how did these isolated trees grow at such a high elevation in the cold environment? Here, we tackle this question using tree-ring width data of the Northern Hemisphere's highest treelines at 4900 m a.s.l. (Basu) and 4680 m a.s.l. (Langkazi) on the Tibetan Plateau. The results showed that an age-related exponential growth trend did not exist in most of the ring-width sequences of the sampled trees. The values of ring widths in the isolated trees had a similar pattern of probability distribution during and after the LIA. The coefficients of variation in ring widths of the isolated trees were significantly greater than those of the non-isolated trees in their common growth period. Synchronicity of annual change in radial growth among trees varied in time. These results indicated that the isolated trees in the LIA developed an adaptive ability to slow down radial growth rate and modulate growth synchronicity among individuals in cold stressful environments. Our study highlights growth plasticity in isolated trees above treelines for coping with harsh conditions in the LIA.
关键词	the little ice age treeline radial growth isolated trees non-isolated trees climate change Tibetan Plateau
学科领域	Forestry
DOI	10.3390/f13091371
收录类别	SCI
语种	英语
WOS关键词	CLIMATE-CHANGE ; LIFE-SPAN ; FOREST ; PINE ; ESTABLISHMENT ; CONIFERS ; RATES ; LIMIT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000859437900001
出版者	MDPI
文献子类	Article
出版地	BASEL
EISSN	1999-4907
资助机构	National Natural Science Foundation of China [31870460]
作者邮箱	qbzhang@ibcas.ac.cn
作品OA属性	gold
引用统计
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28703
专题	植被与环境变化国家重点实验室
作者单位	1.Chinses Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Jiacheng,Lyu, Lixin,Zhang, Qibin. Isolated Trees in Two Tibetan Plateau Treelines Reveal Growth Plasticity to Harsh Conditions of the Little Ice Age[J]. FORESTS,2022,13(9).
APA	Zheng, Jiacheng,Lyu, Lixin,&Zhang, Qibin.(2022).Isolated Trees in Two Tibetan Plateau Treelines Reveal Growth Plasticity to Harsh Conditions of the Little Ice Age.FORESTS,13(9).
MLA	Zheng, Jiacheng,et al."Isolated Trees in Two Tibetan Plateau Treelines Reveal Growth Plasticity to Harsh Conditions of the Little Ice Age".FORESTS 13.9(2022).

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