Climatic controls of Pinus pumila radial growth along an altitude gradient
文献类型：期刊论文
| 作者 | Yang, Jingwen; Cooper, David J.; Zhang, Xu; Song, Wenqi; Li, Zongshan; Zhang, Yuandong; Zhao, Huiying; Han, Shijie; Wang, Xiaochun |
| 刊名 | NEW FORESTS
 |
| 页码 | - |
| 关键词 | Shrub Radial growth Altitude Tree rings Basal area increment Climate warming |
| ISSN号 | 0169-4286 |
| 英文摘要 | Recent temperature rise caused by human activities has led to profound changes in the forest ecosystem. Shrubs play an important role in the boreal forest. However, it is not clear how shrub growth responds to climate change, especially whether there is a difference in the response of shrub at different altitudes to climate change. Here, we developed three ring-width chronologies of Pinus pumila along an altitudinal gradient in the Aokelidui Mountains, northeast China, then analyzed the relationship between the growth of P. pumila and climate at different altitudes. The results showed that the radial growth of P. pumila at low altitude had more prominent climate signals than those at medium and high altitude and was more sensitive to climate change. The chronological similarity was the highest in low and middle altitudes (72.5%, p < 0.01). Summer temperature had a significant negative effect on the growth of shrubs, and summer precipitation was conducive to the formation of wider rings at medium altitude. The warmer winter of the previous year favored P. pumila growth at low and medium altitudes but just the opposite at high altitudes. After rapid warming, the negative correlation between temperature and P. pumila growth in the growing season changed to a positive correlation at high altitude. On the contrary, the relationship between precipitation and P. pumila growth in the growing season changed from a positive to a negative correlation. We also found that the sensitivity of the growth of P. pumila to the Standardized Precipitation Evapotranspiration Index (SPEI) has gradually increased at medium-altitude since the 1980s. Therefore, in recent decades, the effect of moisture on the radial growth of shrub has become more and more important at medium altitudes. At the same time, the temperature rise was beneficial to the growth of P. pumila at low altitude. Our results suggest that the treeline advancement in this area is unlikely to occur in the near future since the shrub at high altitudes is not sensitive to climate warming. |
| WOS研究方向 | Forestry |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45434]  |
| 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.Northeast Forestry Univ, Key Lab Sustainable Forest Ecosyst Management, Minist Educ, Sch Forestry, Harbin 150040, Peoples R China 2.Colorado State Univ, Dept Forest & Rangeland Stewardship, Ft Collins, CO 80523 USA 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 4.Chinese Acad Forestry, Key Lab Forest Ecol & Environm, State Forestry Adm, Inst Forest Ecol Environm & Protect, Beijin 5.Heilongjiang Inst Meteorol Sci, Harbin 150030, Peoples R China 6.Henan Univ, Dept Life Sci, State Key Lab Cotton Biol, Kaifeng 475001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jingwen,Cooper, David J.,Zhang, Xu,et al. Climatic controls of Pinus pumila radial growth along an altitude gradient[J]. NEW FORESTS:-. |
| APA | Yang, Jingwen.,Cooper, David J..,Zhang, Xu.,Song, Wenqi.,Li, Zongshan.,...&Wang, Xiaochun. |
| MLA | Yang, Jingwen,et al."Climatic controls of Pinus pumila radial growth along an altitude gradient".NEW FORESTS |
入库方式： OAI收割
来源：生态环境研究中心
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