DOI: 10.1111/gcb.13582
论文题名: Long-term forest resilience to climate change indicated by mortality, regeneration, and growth in semiarid southern Siberia
作者: Xu C. ; Liu H. ; Anenkhonov O.A. ; Korolyuk A.Y. ; Sandanov D.V. ; Balsanova L.D. ; Naidanov B.B. ; Wu X.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期: 6 起始页码: 2370
结束页码: 2382
语种: 英语
英文关键词: arid timberline
; arid tree line
; climate change
; forest resilience
; forest–steppe
; patch size
; southern Siberia
英文摘要: Several studies have documented that regional climate warming and the resulting increase in drought stress have triggered increased tree mortality in semiarid forests with unavoidable impacts on regional and global carbon sequestration. Although climate warming is projected to continue into the future, studies examining long-term resilience of semiarid forests against climate change are limited. In this study, long-term forest resilience was defined as the capacity of forest recruitment to compensate for losses from mortality. We observed an obvious change in long-term forest resilience along a local aridity gradient by reconstructing tree growth trend and disturbance history and investigating postdisturbance regeneration in semiarid forests in southern Siberia. In our study, with increased severity of local aridity, forests became vulnerable to drought stress, and regeneration first accelerated and then ceased. Radial growth of trees during 1900–2012 was also relatively stable on the moderately arid site. Furthermore, we found that smaller forest patches always have relatively weaker resilience under the same climatic conditions. Our results imply a relatively higher resilience in arid timberline forest patches than in continuous forests; however, further climate warming and increased drought could possibly cause the disappearance of small forest patches around the arid tree line. This study sheds light on climate change adaptation and provides insight into managing vulnerable semiarid forests. © 2016 John Wiley & Sons Ltd 资助项目: This research was granted by National Natural Science Foundation of China (NSFC 41325002 and 41530747).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60947
Appears in Collections: 影响、适应和脆弱性
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作者单位: College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing, China; Institute of General and Experimental Biology, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, Russian Federation; Central Siberian Botanical Garden, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation; College of Resources Science and Technology, Beijing Normal University, Beijing, China
Recommended Citation:
Xu C.,Liu H.,Anenkhonov O.A.,et al. Long-term forest resilience to climate change indicated by mortality, regeneration, and growth in semiarid southern Siberia[J]. Global Change Biology,2017-01-01,23(6)