Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa7989 |
Shrub growth and expansion in the Arctic tundra: an assessment of controlling factors using an evidence-based approach | |
Martin, Andrew C.1; Jeffers, Elizabeth S.1; Petrokofsky, Gillian1; Myers-Smith, Isla2; Macias-Fauria, Marc3 | |
2017-08-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Scotland |
英文摘要 | Woody shrubs have increased in biomass and expanded into new areas throughout the PanArctic tundra biome in recent decades, which has been linked to a biome-wide observed increase in productivity. Experimental, observational, and socio-ecological research suggests that air temperature-and to a lesser degree precipitation-trends have been the predominant drivers of this change. However, a progressive decoupling of these drivers from Arctic vegetation productivity has been reported, and since 2010, vegetation productivity has also been declining. We created a protocol to (a) identify the suite of controls that may be operating on shrub growth and expansion, and (b) characterise the evidence base for controls on Arctic shrub growth and expansion. We found evidence for a suite of 23 proximal controls that operate directly on shrub growth and expansion; the evidence base focused predominantly on just four controls (air temperature, soil moisture, herbivory, and snow dynamics). 65% of evidence was generated in the warmest tundra climes, while 24% was from only one of 28 floristic sectors. Temporal limitations beyond 10 years existed for most controls, while the use of space-for-time approaches was high, with 14% of the evidence derived via experimental approaches. The findings suggest the current evidence base is not sufficiently robust or comprehensive at present to answer key questions of Pan-Arctic shrub change. We suggest future directions that could strengthen the evidence, and lead to an understanding of the key mechanisms driving changes in Arctic shrub environments. |
英文关键词 | arctic shrub systematic approach shrub growth shrub expansion global change |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407467300002 |
WOS关键词 | POLLEN ACCUMULATION RATES ; CLIMATE-CHANGE ; GLOBAL ASSESSMENT ; VEGETATION CHANGE ; SIBERIAN TUNDRA ; ECOSYSTEMS ; RESPONSES ; ALASKA ; TEMPERATURE ; BIOME |
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/34256 |
专题 | 气候变化 |
作者单位 | 1.Univ Oxford, Dept Zool, Oxford Long Term Ecol Lab, Oxford OX1 3PS, England; 2.Univ Edinburgh, Sch Geosci, Edinburgh EH9 3JN, Midlothian, Scotland; 3.Univ Oxford, Sch Geog & Environm, Oxford OX1 3QY, England |
推荐引用方式 GB/T 7714 | Martin, Andrew C.,Jeffers, Elizabeth S.,Petrokofsky, Gillian,et al. Shrub growth and expansion in the Arctic tundra: an assessment of controlling factors using an evidence-based approach[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(8). |
APA | Martin, Andrew C.,Jeffers, Elizabeth S.,Petrokofsky, Gillian,Myers-Smith, Isla,&Macias-Fauria, Marc.(2017).Shrub growth and expansion in the Arctic tundra: an assessment of controlling factors using an evidence-based approach.ENVIRONMENTAL RESEARCH LETTERS,12(8). |
MLA | Martin, Andrew C.,et al."Shrub growth and expansion in the Arctic tundra: an assessment of controlling factors using an evidence-based approach".ENVIRONMENTAL RESEARCH LETTERS 12.8(2017). |
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