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Past the climate optimum: Recruitment is declining at the world's highest juniper shrublines on the Tibetan Plateau
Lu, XM (Lu, Xiaoming)1,2; Liang, EY (Liang, Eryuan)1,3; Wang, YF (Wang, Yafeng)4; Babst, F (Babst, Flurin)5,6,7; Leavitt, SW (Leavitt, Steven W.)7; Camarero, JJ (Julio Camarero, J.)8
Source PublicationECOLOGY
2019
Volume100Issue:2Pages:e02557
DOI10.1002/ecy.2557
Abstract

Alpine biomes are climate change hotspots, and treeline dynamics in particular have received much attention as visible evidence of climate-induced shifts in species distributions. Comparatively little is known, however, about the effects of climate change on alpine shrubline dynamics. Here, we reconstruct decadally resolved shrub recruitment history (age structure) through the combination of field surveys and dendroecology methods at the world's highest juniper (Juniperus pingii var. wilsonii) shrublines on the south-central Tibetan Plateau. A total of 1,899 shrubs were surveyed at 12 plots located in four regions along an east-to-west declining precipitation gradient. We detected synchronous recruitment with 9 out of 12 plots showing a gradual increase from 1600 to 1900, a peak at 1900-1940, and a subsequent decrease from the 1930s onward. Shrub recruitment was significantly and positively correlated with reconstructed summer temperature from 1600 to 1940, whereas it was negatively associated with temperature in recent decades (1930-2000). Recruitment was also positively correlated with precipitation, except in the 1780-1830 period, when a trend toward wetter climate conditions began. Warming-induced drought limitation has likely reduced the recruitment potential of alpine juniper shrubs in recent decades. Ongoing warming without a simultaneous increase in precipitation is expected to further impair recruitment at the world's highest juniper shrublines and alter the dynamics and competitive balance between woody plant species throughout these alpine biomes.

Subject AreaEnvironmental Sciences
WOS IDWOS:000457618800011
Language英语
Indexed BySCI
KeywordTree-line Seedling Establishment Rocky-mountains Plant Community Alpine Treeline Dynamics Tundra Forest Regeneration Temperature
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEcology
Cooperation Status国际
ISSN0012-9658
Department高寒生态与人类适应
URL查看原文
PublisherWILEY
SubtypeArticle
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9413
Collection图书馆
Corresponding AuthorLiang, EY (Liang, Eryuan)
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing 100101, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
4.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Jiangsu, Peoples R China;
5.Swiss Fed Res Inst WSL, Dendro Sci Grp, Forest Dynam Unit, Zurcherstr 111, CH-8903 Birmensdorf, Switzerland;
6.Polish Acad Sci, W Szafer Inst Bot, Dept Ecol, Ul Lubicz 46, PL-31512 Krakow, Poland;
7.Univ Arizona, Lab Tree Ring Res, 1215 East Lowell St, Tucson, AZ 85721 USA;
8.CSIC, IPE, Ave Montanana 1005, Zaragoza 50059, Spain.
Recommended Citation
GB/T 7714
Lu, XM ,Liang, EY ,Wang, YF ,et al. Past the climate optimum: Recruitment is declining at the world's highest juniper shrublines on the Tibetan Plateau[J]. ECOLOGY,2019,100(2):e02557.
APA Lu, XM ,Liang, EY ,Wang, YF ,Babst, F ,Leavitt, SW ,&Camarero, JJ .(2019).Past the climate optimum: Recruitment is declining at the world's highest juniper shrublines on the Tibetan Plateau.ECOLOGY,100(2),e02557.
MLA Lu, XM ,et al."Past the climate optimum: Recruitment is declining at the world's highest juniper shrublines on the Tibetan Plateau".ECOLOGY 100.2(2019):e02557.
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