GSTDTAP  > 气候变化
DOI10.1016/j.foreco.2019.117458
Sunshine as culprit: It induces early spring physiological drought in dark coniferous (Pinus sibirica and Abies sibirica) alpine alpine forest
Zhirnova, Dina F.1; Babushkina, Elena A.1; Belokopytova, Liliana, V1; Yurin, Denis O.2; Vaganov, Eugene A.2,3
2019-10-01
发表期刊FOREST ECOLOGY AND MANAGEMENT
ISSN0378-1127
EISSN1872-7042
出版年2019
卷号449
文章类型Article
语种英语
国家Russia
英文摘要

Trees comprising high mountain forests have different requirements for site conditions (such as the water supply), thus current climate warming leads to varying reactions of upper forest boundaries depending on the site conditions and ecophysiological features of species. Positive reactions to an increasing heat supply during vegetative season may be hindered for drought-sensitive species by a water deficit in a cold environment, particularly during late winter or early spring.


We investigated the radial growth of dark coniferous forest species Siberian stone pine (Pinus sibirica Du Tour) and Siberian fir (Abies sibirica Ledeb.) growing on slopes of different orientation (south-west, east, and north) near the upper forest boundary in an area undergoing fast climate warming: the Western Sayan Mountains (South Siberia, Russia), near a massive water reservoir. Correlations of tree-ring width chronologies with moving 21-day temperature series were used to more precisely determine the timing of temperature influence; an analysis of extreme and optimal years and multifactor regression modeling were applied to assess the most favorable/unfavorable thermal conditions in the study area and to estimate the tree growth reaction to the current climatic trends, respectively.


Despite relatively low variation in growth (standard deviation < 0.2), a significant common climatic signal in tree-ring width was found at all sampling sites. On the shaded northern slopes, P. sibirica is only mildly limited by summer temperatures and has a low similarity (correlations and synchronicity of extreme/optimal years) with other sites. Conversely, the growth of A. sibirica and P. sibirica on two sunlit slopes is similar (r = 0.44-0.81) and has a common pattern of regulation by temperatures before (r = - 0.17...80.40; April 3 - May 4 on average) and more significantly during vegetative season (r = 0.31...0.44; May 17 - August 27 on average). We hypothesize that both species, being drought-sensitive, undergo water stress in the early spring, and exposition of previous years' needles to severe temperature variation may lead to partial defoliation and xylem embolism, thus suppressing growth. The patterns of climatic response and species distribution on slopes indicate that A. sibirica is more sensitive to this physiological drought and needs gentler slopes than P. sibirica.


Temperature increase in the study area during the last decades have occured about five times faster in the early spring (being enhanced by the reservoir) than in summer. This combination of spring and summer warming leads to an increase in P. sibirica radial growth on the northern slope and the stable growth of both species on sunlit slopes, i.e. providing a tentatively optimistic assessment of the dark coniferous forests' near future in the region.


英文关键词Dark conifers Radial growth Mountain forest Climate change Physiological drought
领域气候变化
收录类别SCI-E
WOS记录号WOS:000484647700013
WOS关键词WESTERN SAYAN MOUNTAINS ; RADIAL GROWTH ; CLIMATE-CHANGE ; ALTITUDINAL GRADIENT ; TIANSHAN MOUNTAINS ; PICEA-CRASSIFOLIA ; AIR-TEMPERATURE ; SIBERIAN SPRUCE ; NORWAY SPRUCE ; RESPONSES
WOS类目Forestry
WOS研究方向Forestry
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/187343
专题气候变化
作者单位1.Siberian Fed Univ, Khakass Tech Inst, 27 Shcheankina, Abakan 655017, Russia;
2.Siberian Fed Univ, 79 Svobodny, Krasnoyarsk 660041, Russia;
3.Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, 50-28 Akad Gorodok, Krasnoyarsk 660036, Russia
推荐引用方式
GB/T 7714
Zhirnova, Dina F.,Babushkina, Elena A.,Belokopytova, Liliana, V,et al. Sunshine as culprit: It induces early spring physiological drought in dark coniferous (Pinus sibirica and Abies sibirica) alpine alpine forest[J]. FOREST ECOLOGY AND MANAGEMENT,2019,449.
APA Zhirnova, Dina F.,Babushkina, Elena A.,Belokopytova, Liliana, V,Yurin, Denis O.,&Vaganov, Eugene A..(2019).Sunshine as culprit: It induces early spring physiological drought in dark coniferous (Pinus sibirica and Abies sibirica) alpine alpine forest.FOREST ECOLOGY AND MANAGEMENT,449.
MLA Zhirnova, Dina F.,et al."Sunshine as culprit: It induces early spring physiological drought in dark coniferous (Pinus sibirica and Abies sibirica) alpine alpine forest".FOREST ECOLOGY AND MANAGEMENT 449(2019).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhirnova, Dina F.]的文章
[Babushkina, Elena A.]的文章
[Belokopytova, Liliana, V]的文章
百度学术
百度学术中相似的文章
[Zhirnova, Dina F.]的文章
[Babushkina, Elena A.]的文章
[Belokopytova, Liliana, V]的文章
必应学术
必应学术中相似的文章
[Zhirnova, Dina F.]的文章
[Babushkina, Elena A.]的文章
[Belokopytova, Liliana, V]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。