干旱区生态环境知识资源中心(Arid): Trees at a Moderately Arid Site Were More Sensitive to Long-Term Drought

Arid

DOI	10.3390/f12050579
	Trees at a Moderately Arid Site Were More Sensitive to Long-Term Drought
	Wang, Bin; Yu, Pengtao; Yu, Yipeng; Wang, Yanhui; Zhang, Lei; Wan, Yanfang; Wang, Shunli; Liu, Xiande
通讯作者	Yu, PT (corresponding author), Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm, Natl Forestry & Grassland Adm, Beijing 100091, Peoples R China.
来源期刊	FORESTS
EISSN	1999-4907
出版年	2021
卷号	12 期号:5
英文摘要	Climate change has dramatically altered the frequency and intensity of droughts, thereby altering tree growth. Understanding whether tree growth in semiarid areas in response to long-term drought and the post-drought recovery rate of tree growth vary along moisture gradients is crucial for predicting future forest change. Here, we assessed the spatial variation in both the growth resistance of Qinghai spruce (Picea crassifolia Kom.) to long-term drought and its post-drought recovery using a stand-total sampling strategy along a moisture gradient that covered three sites (with an annual precipitation of 330.4, 394.2, and 515.9 mm for the western, middle, and eastern sites, respectively) with six plots. Resistance and recovery were evaluated by analyzing the tree growth trends during a long-term drought period (1980-2001) and the subsequent post-drought period (2001-2013), respectively. Our results indicate that the trees with the highest temporal stability were those at the wetter eastern site; specifically, during the long-term drought period, the trees at the wetter eastern site showed the highest resistance (-0.015) and the lowest recovery (0.002). The trees in moderately arid conditions were much more sensitive to climate change than those at the relatively arid western site, showing the lowest resistance (-0.050) and highest recovery (0.020). Climate change had the strongest impact on tree growth at the moderately arid site, contributing 60.6% to the tree growth decreasing trend during the long-term drought period and 65.4% to the tree recovery during the post-drought period, respectively. Climate change had a lower impact on tree growth at the wet and dry sites, contributing less than 50% to the tree growth trends at these sites. The results indicate that a trade-off relationship exists between resistance and recovery at the different sites; that is, the highly resistant trees at the wetter eastern site tend to have lower recovery, whereas the weakly resistant trees at the moderately arid site tend to have higher recovery. These results have implications for predicting tree growth in response to future climate change.
英文关键词	climate change long-term drought resistance recovery Qinghai spruce
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000653927300001
WOS关键词	QILIAN MOUNTAINS ; CLIMATE RESPONSE ; GROWTH DECLINE ; RESILIENCE ; FORESTS ; MORTALITY ; DRIVEN ; SIZE ; AGE
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368814
作者单位	[Wang, Bin; Yu, Pengtao; Yu, Yipeng; Wang, Yanhui; Wan, Yanfang] Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm, Natl Forestry & Grassland Adm, Beijing 100091, Peoples R China; [Zhang, Lei] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China; [Zhang, Lei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Shunli; Liu, Xiande] Acad Water Resource Conservat Forests Qilian Mt G, Zhangye 734000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bin,Yu, Pengtao,Yu, Yipeng,et al. Trees at a Moderately Arid Site Were More Sensitive to Long-Term Drought[J],2021,12(5).
APA	Wang, Bin.,Yu, Pengtao.,Yu, Yipeng.,Wang, Yanhui.,Zhang, Lei.,...&Liu, Xiande.(2021).Trees at a Moderately Arid Site Were More Sensitive to Long-Term Drought.FORESTS,12(5).
MLA	Wang, Bin,et al."Trees at a Moderately Arid Site Were More Sensitive to Long-Term Drought".FORESTS 12.5(2021).