Trees at a Moderately Arid Site Were More Sensitive to Long-Term Drought
文献类型：期刊论文
| 作者 | Wang, Bin; Yu, Pengtao; Yu, Yipeng; Wang, Yanhui; Zhang, Lei ; Wan, Yanfang; Wang, Shunli; Liu, Xiande
|
| 刊名 | FORESTS
 |
| 出版日期 | 2021-05 |
| 卷号 | 12期号:5页码:- |
| 关键词 | climate change long-term drought resistance recovery Qinghai spruce |
| 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. |
| WOS研究方向 | Forestry |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45597]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm, Natl Forestry & Grassland Adm, Beijing 100091, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.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]. FORESTS,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):-. |
入库方式： OAI收割
来源：生态环境研究中心
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