干旱区生态环境知识资源中心(Arid): Temperature sensitivity of willow dwarf shrub growth from two distinct High Arctic sites

Arid

DOI	10.1007/s00484-018-1648-6
	Temperature sensitivity of willow dwarf shrub growth from two distinct High Arctic sites
	Buchwal, Agata 1; Weijers, Stef 2; Blok, Daan 3; Elberling, Bo 4
通讯作者	Buchwal, Agata ; Elberling, Bo
来源期刊	INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
ISSN	0020-7128
EISSN	1432-1254
出版年	2019
卷号	63 期号:2 页码:167-181
英文摘要	The High Arctic region has experienced marked climate fluctuations within the past decades strongly affecting tundra shrub growth. However, the spatial variability in dwarf shrub growth responses in this remote region remains largely unknown. This study characterizes temperature sensitivity of radial growth of two willow dwarf shrub species from two distinct High Arctic sites. The dwarf shrub Salix arctica from Northern Greenland (82 degrees N), which has a dry continental High Arctic climate, is linked with Salix polaris from central Svalbard (78 degrees N), which experiences a more oceanic High Arctic climate with relatively mild winters. We found similar positive and significant relationships between annual growth of both Salix dwarf shrub species and July-August air temperatures (1960-2010), despite different temperature regimes and shrub growth rates at the two sites. Also, Salix dwarf shrub growth was significantly negatively correlated with Arctic and North Atlantic Oscillation (AO/NAO) indices; S. arctica from Northern Greenland was negatively correlated with previous autumn (AO index) and current summer AO and NAO indices, and S. polaris with the summer NAO index. The results highlight the importance of both local and regional climatic drivers for dwarf willow shrub growth in harsh polar desert habitats and are a step in the direction of identifying and scaling changes in plant growth across the High Arctic.
英文关键词	Salix arctica (Pall ) Salix polaris (Wahlenb) Greenland Svalbard Climate sensitivity AO NAO index
类型	Article
语种	英语
国家	Poland ; Germany ; Sweden ; Denmark
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000459790300006
WOS关键词	NORTH-ATLANTIC OSCILLATION ; CASSIOPE-TETRAGONA ; SALIX-ARCTICA ; PLANT PHENOLOGY ; CLIMATE ; TUNDRA ; VEGETATION ; RECONSTRUCTIONS ; HETEROGENEITY ; VARIABILITY
WOS类目	Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology
WOS研究方向	Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216360
作者单位	1.Adam Mickiewicz Univ, Inst Geoecol & Geoinformat, B Krygowskiego 10, PL-61680 Poznan, Poland; 2.Univ Bonn, Dept Geog, Meckenheimer Allee 166, D-53115 Bonn, Germany; 3.Lund Univ, Dept Phys Geog & Ecosyst Sci, Solvegatan 12, S-22362 Lund, Sweden; 4.Univ Copenhagen, Ctr Permafrost CENPERM, Dept Geosci & Nat Resource Management, Oster Voldgade 10, DK-1350 Copenhagen K, Denmark
推荐引用方式 GB/T 7714	Buchwal, Agata,Weijers, Stef,Blok, Daan,et al. Temperature sensitivity of willow dwarf shrub growth from two distinct High Arctic sites[J],2019,63(2):167-181.
APA	Buchwal, Agata,Weijers, Stef,Blok, Daan,&Elberling, Bo.(2019).Temperature sensitivity of willow dwarf shrub growth from two distinct High Arctic sites.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,63(2),167-181.
MLA	Buchwal, Agata,et al."Temperature sensitivity of willow dwarf shrub growth from two distinct High Arctic sites".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 63.2(2019):167-181.