GSTDTAP  > 气候变化
DOI10.1088/1748-9326/aaa5b8
Contrasting shrub species respond to early summer temperatures leading to correspondence of shrub growth patterns
Weijers, Stef1; Pape, Roland1; Loeffler, Joerg1; Myers-Smith, Isla H.2
2018-03-01
发表期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2018
卷号13期号:3
文章类型Article
语种英语
国家Germany; Scotland
英文摘要

The Arctic-alpine biome is warming rapidly, resulting in a gradual replacement of low statured species by taller woody species in many tundra ecosystems. In northwest North America, the remotely sensed normalized difference vegetation index (NDVI), suggests an increase in productivity of the Arctic and alpine tundra and a decrease in productivity of boreal forests. However, the responses of contrasting shrub species growing at the same sites to climate drivers remain largely unexplored.


Here, we test growth, climate, and NDVI relationships of two contrasting species: the expanding tall deciduous shrub Salix pulchra and the circumarctic evergreen dwarf shrub Cassiope tetragona from an alpine tundra site in the Pika valley in the Kluane Region, southwest Yukon Territories, Canada.


We found that annual growth variability of both species at this site is strongly driven by early summer temperatures, despite their contrasting traits and habitats. Shrub growth chronologies for both species were correlated with the regional climate signal and showed spatial correspondence with interannual variation in NDVI in surrounding alpine and Arctic regions. Our results suggest that early summer warming represents a common driver of vegetation change for contrasting shrub species growing in different habitats in the same alpine environments.


英文关键词alpine browning greening NDVI productivity shrubs tundra
领域气候变化
收录类别SCI-E
WOS记录号WOS:000425649600001
WOS关键词CASSIOPE-TETRAGONA GROWTH ; CLIMATE-CHANGE ; DWARF-SHRUB ; RETROSPECTIVE ANALYSIS ; TUNDRA ECOSYSTEM ; SATELLITE DATA ; ARCTIC ALASKA ; EXPANSION ; COMMUNITY ; HETEROGENEITY
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/15038
专题气候变化
作者单位1.Univ Bonn, Dept Geog, Meckenheimer Allee 166, D-53115 Bonn, Germany;
2.Univ Edinburgh, Sch GeoSci, Kings Bldg,West Mains Rd, Edinburgh EH9 3FF, Midlothian, Scotland
推荐引用方式
GB/T 7714
Weijers, Stef,Pape, Roland,Loeffler, Joerg,et al. Contrasting shrub species respond to early summer temperatures leading to correspondence of shrub growth patterns[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(3).
APA Weijers, Stef,Pape, Roland,Loeffler, Joerg,&Myers-Smith, Isla H..(2018).Contrasting shrub species respond to early summer temperatures leading to correspondence of shrub growth patterns.ENVIRONMENTAL RESEARCH LETTERS,13(3).
MLA Weijers, Stef,et al."Contrasting shrub species respond to early summer temperatures leading to correspondence of shrub growth patterns".ENVIRONMENTAL RESEARCH LETTERS 13.3(2018).
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