在气候变化中,ENSO扩大了全球植被弹性变异性
Wei Zhou1, Changjia Li2,3, Haicheng Zhang4
1College of Resources and Environment, Huazhong Agricultural University, Wuhan, China.
Nature communications
|December 4, 2025
概括
厄尔尼诺-南方振荡 (ENSO) 显著影响全球植被弹性,影响了超过一半的植被土地. 未来的气候变化可能会扩大这些ENSO驱动的影响,特别是在西伯利亚和北美.
科学领域:
- 生态生态学 生态生态学
- 气候科学 气候科学
- 遥感 遥感 遥感 遥感
背景情况:
- 植被的弹性对生态系统功能和碳汇至关重要.
- 厄尔尼诺-南方振荡 (ENSO) 影响全球天气和植被动态,但其对弹性的影响尚不清楚.
研究的目的:
- 评估全球植被对气候变化的弹性,重点关注ENSO的影响.
- 分析当前 (1981-2018) 和未来 (2015-2100) 的植被弹性.
- 调查ENSO和植被弹性之间的远程连接.
主要方法:
- 全球叶面积指数 (LAI) 时间序列的Lag-1自相关性分析.
- 全球评估植被弹性对ENSO的敏感性.
- 通过大气同步和局部气候异常来分析ENSO的影响.
主要成果:
- 在全球53%的植被面积上,ENSO显著影响了植被的弹性.
- 冲击路径包括大规模大气同步 (15%),ENSO驱动的局部气候异常 (51%),以及两者 (34%).
- 未来的预测表明,ENSO驱动的气候异常影响将扩大7-10%,影响东西伯利亚和北美北部等新地区.
结论:
- 恩索是影响全球植被弹性的一个主要因素.
- 气候变化可能会改变ENSO对植被的影响的空间范围和途径.
- 调查结果为有针对性的生态系统恢复和气候适应性治理策略提供信息.
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