文章信息:Zhang, X., Liu, H., Manzanedo, R. D., Maxwell, J. T., D'Orangeville, L., Du, M., & Rademacher, T. (2026). Hydraulic traits govern opposing range shifts of montane trees under warming. Nature Climate Change. https://doi.org/10.1038/s41558-026-02726-6
整理人:徐嘉苗,2025级硕士研究生
整理时间:2026年8月22日
Abstract: Montane tree species are undergoing accelerated elevational range shifts in response to climate warming, yet the mechanisms driving interspecific variation remain elusive. Here we show that hydraulic traits predict opposing biogeographic responses of montane trees to warming and drought. By integrating hemispheric-scale dendrochronological records from 45 species (121,743 individuals), global observations of elevational range shifts from 102 species and hydraulic trait data for 11 functional attributes, we demonstrate that climate-sensitive species tended to rapidly track warming into higher elevations, whereas taxa resistant to these stresses were poised to have expanded downslope. In addition, elevational dependencies in drought sensitivity changed over time for nearly one-third of the species, revealing dynamic reorganization of climate–growth relationships across mountain gradients. These findings establish leaf- and stem-level hydraulic traits as a fundamental predictor of range dynamics, providing a mechanistic basis for forecasting the reorganization of montane forests under continued climate change.
摘要:山地树种对气候变暖的响应正经历着海拔梯度的加速变化,但驱动种间变异的机制仍不清楚。在这里,我们表明水力性状预测了山地树木对增温和干旱的相反生物地理响应。通过整合来自45个物种( 121743个体 )的半球尺度的树轮年代学记录、102个物种海拔范围的全球观测和11个功能属性的水力性状数据,我们证明了气候敏感物种倾向于将增温迅速跟踪到更高的海拔,而对这些压力具有抵抗力的分类群则倾向于向下坡扩展。 此外,近三分之一的物种干旱敏感性的海拔依赖性随时间而变化,揭示了气候-生长关系在山地梯度上的动态重组。这些发现将叶和茎水平的水力性状确立为范围动态的基本预测因子,为预测持续气候变化下山地森林的重组提供了机制基础。
1. 研究背景
2. 研究意义
3. 研究方法
4. 主要结论
5. 研究展望
6. 研究主要图表

01 将水力性状与物种在升温和干旱下的海拔范围变化联系起来的机制框架

02 气候-生长关系的物种特异性海拔趋势( 1951 - 1990年)

03 水力性状对海拔气候敏感性的影响( 1951 - 1990年)

04 树木水力性状驱动的树木沿海拔迁移
05 树木水力性状与树种沿海拔迁移的关系
原文链接:https://www.nature.com/articles/s41558-026-02726-6
原文转引:https://mp.weixin.qq.com/s/N9IpwP6H7YffnY3b7K3laA