GSTDTAP  > 气候变化
DOI10.1111/gcb.14749
Snowmelt and early to mid-growing season water availability augment tree growth during rapid warming in southern Asian boreal forests
Zhang, Xianliang1; 39;Orangeville, Loic2
2019-10-01
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
EISSN1365-2486
出版年2019
卷号25期号:10页码:3462-3471
文章类型Article
语种英语
国家Peoples R China; USA; Canada
英文摘要

Boreal forests are facing profound changes in their growth environment, including warming-induced water deficits, extended growing seasons, accelerated snowmelt, and permafrost thaw. The influence of warming on trees varies regionally, but in most boreal forests studied to date, tree growth has been found to be negatively affected by increasing temperatures. Here, we used a network of Pinus sylvestris tree-ring collections spanning a wide climate gradient the southern end of the boreal forest in Asia to assess their response to climate change for the period 1958-2014. Contrary to findings in other boreal regions, we found that previously negative effects of temperature on tree growth turned positive in the northern portion of the study network after the onset of rapid warming. Trees in the drier portion did not show this reversal in their climatic response during the period of rapid warming. Abundant water availability during the growing season, particularly in the early to mid-growing season (May-July), is key to the reversal of tree sensitivity to climate. Advancement in the onset of growth appears to allow trees to take advantage of snowmelt water, such that tree growth increases with increasing temperatures during the rapidly warming period. The region's monsoonal climate delivers limited precipitation during the early growing season, and thus snowmelt likely covers the water deficit so trees are less stressed from the onset of earlier growth. Our results indicate that the growth response of P. sylvestris to increasing temperatures strongly related to increased early season water availability. Hence, boreal forests with sufficient water available during crucial parts of the growing season might be more able to withstand or even increase growth during periods of rising temperatures. We suspect that other regions of the boreal forest may be affected by similar dynamics.


英文关键词boreal forest permafrost rapid warming Scots pine snowmelt tree rings
领域气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000486150200021
WOS关键词CLIMATE-CHANGE IMPACTS ; SUMMER TEMPERATURE ; SOIL-MOISTURE ; MORTALITY ; DROUGHT ; RING ; PERMAFROST ; INCREASE ; SENSITIVITY ; TRENDS
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
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/187381
专题气候变化
资源环境科学
作者单位1.Hebei Agr Univ, Coll Forestry, 289 Lingyusi St, Baoding 071001, Hebei, Peoples R China;
2.Shenyang Agr Univ, Coll Forestry, Tree Ring Lab, Shenyang, Liaoning, Peoples R China;
3.Harvard Univ, Harvard Forest, Petersham, MA USA;
4.Univ Washington, Biol Dept, Washington, DC USA;
5.Univ New Brunswick, Fac Forestry & Environm Management, Fredericton, NB, Canada;
6.Harvard Univ, Dept Organism & Evolutionary Biol, Petersham, MA USA;
7.No Arizona Univ, Sch Informat & Cyber Secur, Flagstaff, AZ 86011 USA;
8.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA;
9.China Meteorol Adm, China Meteorol Adm Training Ctr, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Xianliang,39;Orangeville, Loic. Snowmelt and early to mid-growing season water availability augment tree growth during rapid warming in southern Asian boreal forests[J]. GLOBAL CHANGE BIOLOGY,2019,25(10):3462-3471.
APA Zhang, Xianliang,&39;Orangeville, Loic.(2019).Snowmelt and early to mid-growing season water availability augment tree growth during rapid warming in southern Asian boreal forests.GLOBAL CHANGE BIOLOGY,25(10),3462-3471.
MLA Zhang, Xianliang,et al."Snowmelt and early to mid-growing season water availability augment tree growth during rapid warming in southern Asian boreal forests".GLOBAL CHANGE BIOLOGY 25.10(2019):3462-3471.
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