Global warming-related tree growth decline and mortality on the north-eastern Tibetan plateau
Global warming-related tree growth decline and mortality on the north-eastern Tibetan plateau
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全球变暖导致青藏高原东北部树木生长下降和死亡
DOI：
10.1007/s10584-015-1531-y
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发表时间：
2015
期刊：
影响因子：
4.8
通讯作者：
Hauck M
中科院分区：
文献类型：
--
作者：
Leuschner C;Dulamsuren C;Wagner B;Hauck M
半干旱森林在其生存的极限接近戈壁沙漠在亚洲内部可能是脆弱的变暖引起的干旱压力。然而，人们对全球变化型干旱对这些森林的影响知之甚少。本研究表明，与气候变暖相关的树木死亡率最近在高海拔半干旱的青海云杉（Picea crassifoliaKom）中发生。在青海云杉林北坡上沿8个海拔样带，在3个海拔高度（2600、2700、2800 m）的24个样地（20 m × 20 m）采集了树木年轮样本。有三种证据表明，由于全球变暖，(i)径向生长对降水和空气湿度的强烈依赖，（ii）树木年轮丢失的频率越来越高，以及（iii）近几十年来树木死亡率不断上升，这些森林正日益面临树木死亡率增加的风险。
Semi-arid forests at the limit of their existence close to the Gobi Desert in Inner Asia might be vulnerable to warming-induced drought stress. Yet, not much is known about the impact of global-change-type droughts on these forests. Here, we show that warming-related tree mortality is recently taking place in high-elevation semi-arid Qinghai spruce (Picea crassifoliaKom.) forests of the north-eastern margin of the Tibetan Plateau (Qilian Mountains). Tree-ring samples were collected from 24 Qinghai spruce forest plots (20 m × 20 m) at three elevations (2600, 2700, 2800 m) along eight elevation transects on north-facing slopes. Three lines of evidence suggest that these forests are increasingly at risk of increased tree mortality as a consequence of global warming, (i) a strong precipitation and air humidity dependence of radial growth, (ii) increasing frequency of missing tree rings, and (iii) a rising tree mortality rate in recent decades. The recent drought episode on the north-eastern Tibetan Plateau may represent a precursor of future global-change-type drought events in large parts of Inner Asia. Warming-related tree mortality of the semi-arid forests may be interpreted as early-warning signs for the densely populated artificial oases surrounding the Gobi Desert, which largely depend on river run-off from the mountain forests on the edge of the Tibetan Plateau.
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DOI：
10.1007/s11425-009-0213-5
发表时间：
2009-12
期刊：
Science in China Series A: Mathematics
影响因子：
--
作者：
P. Wong;Hiu-Fai Law;Philip P. W. Wong
通讯作者：
P. Wong;Hiu-Fai Law;Philip P. W. Wong
影响因子：
6.2
作者：
B. Poulter;N. Pederson;Hongyan Liu;Zaichun Zhu;R. D’Arrigo;P. Ciais;N. Davi;D. Frank;C. Leland
通讯作者：
B. Poulter;N. Pederson;Hongyan Liu;Zaichun Zhu;R. D’Arrigo;P. Ciais;N. Davi;D. Frank;C. Leland
祁连山（青藏高原东北部）半干旱青叶云杉林碳库
影响因子：
3.7
作者：
Li X;Dulamsuren C;Leuschner C;Hauck M
通讯作者：
Hauck M
影响因子：
11.6
作者：
M. Wilmking;G. Juday;V. Barber;Harold S. J. Zald
通讯作者：
M. Wilmking;G. Juday;V. Barber;Harold S. J. Zald
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Niu Yun
通讯作者：
Niu Yun