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High-altitude tree growth responses to climate change across the Hindu Kush Himalaya
Zheng, Lili1,2; Gaire, Narayan Prasad3,4; Shi, Peili1,2
2021-10-01
Source PublicationJOURNAL OF PLANT ECOLOGY
ISSN1752-9921
Volume14Issue:5Pages:829-842
Corresponding AuthorShi, Peili(shipl@igsurr.ac.cn)
AbstractAims Rapid warming at high altitudes may lead to a higher sensitivity in tree growth to temperature. The key factors constraining tree radial growth and to what extent regional tree growth has suffered from climatic changes are unclear. Methods Tree-ring width data were collected from 73 sites across the Hindu Kush Himalaya (HKH), including three dominant genera (Abies, Juniperus and Picea) at high altitudes over 3000 m. Dynamic time warping was introduced to develop subregional chronologies by considering the synchrony of annual tree growth among different sites. We quantified the contribution of the climate variables, and analyzed the spatiotemporal variation of the growth-climate relationship. Important Findings The site chronologies were grouped into three clusters, corresponding to the three distinct bioclimatic zones, i.e. the western HKH, central-eastern HKH and southeastern Tibetan Plateau (TP). Tree growth was positively correlated to winter and spring precipitation in the drier western HKH, and to winter temperature and spring precipitation in the humid southeastern TP. Tree growth was markedly constrained by the minimum temperature, especially in winter, with its importance increasing from the west toward the east. As shown by moving correlation analysis, the signal of winter temperature in tree growth was weakened in the western and central-eastern HKH, while it was enhanced in the southeastern TP following rapid warming since the 1980s. Our results highlight that continuous warming may cause forest recession due to warming-induced moisture deficit in the western HKH, but forest expansion in the southeastern TP.
Keywordtree ring high-altitude forests key climate factors tree growth-climate relationships growth trends climate sensitivity
DOI10.1093/jpe/rtab035
WOS KeywordWESTERN NEPAL HIMALAYA ; TEMPERATURE RECONSTRUCTION ; TIBETAN PLATEAU ; YELLOW-CEDAR ; WINTER PRECIPITATION ; ABIES-SPECTABILIS ; RING WIDTHS ; DROUGHT ; FOREST ; MOISTURE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China ; ICIMOD Joint Research Project[41661144045]
Funding OrganizationNational Natural Science Foundation of China ; ICIMOD Joint Research Project
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS SubjectPlant Sciences ; Ecology ; Forestry
WOS IDWOS:000661486200008
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/164177
Collection中国科学院地理科学与资源研究所
Corresponding AuthorShi, Peili
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
3.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
4.Tribhuvan Univ, Cent Dept Environm Sci, Kathmandu, Nepal
Recommended Citation
GB/T 7714
Zheng, Lili,Gaire, Narayan Prasad,Shi, Peili. High-altitude tree growth responses to climate change across the Hindu Kush Himalaya[J]. JOURNAL OF PLANT ECOLOGY,2021,14(5):829-842.
APA Zheng, Lili,Gaire, Narayan Prasad,&Shi, Peili.(2021).High-altitude tree growth responses to climate change across the Hindu Kush Himalaya.JOURNAL OF PLANT ECOLOGY,14(5),829-842.
MLA Zheng, Lili,et al."High-altitude tree growth responses to climate change across the Hindu Kush Himalaya".JOURNAL OF PLANT ECOLOGY 14.5(2021):829-842.
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