社区的热化在陆地植物系,土地使用类型和高度之间存在差异
Thomas Kiebacher1,2, Markus Meier3, Tabea Kipfer4
1Department of Botany, Stuttgart State Museum of Natural History, Rosenstein 1, 70191, Stuttgart, Germany. thomas.kiebacher@smns-bw.de.
Scientific reports
|July 14, 2023
概括
植物比血管植物表现出更快的变暖反应,社区转向适应更温暖的物种. 这种热化因息地和海拔而异,突出显示了气候变化对植物生活的影响多样化.
科学领域:
- 生态生态学 生态生态学
- 气候变化生物学 气候变化生物学
- 植物科学 植物科学
背景情况:
- 植物对生态系统服务至关重要,如碳储存,但与血管植物相比,它们对气候变暖的反应知之甚少.
- 植物和血管植物之间的基本生态生理差异表明气候变化下不同的社区变化动态.
研究的目的:
- 为了比较分析植物和血管植物群落沿着高度梯度的热化.
- 研究植物系,土地使用类型,生命策略和高度之间热化如何不同.
主要方法:
- 在瑞士 (2001-2021) 分析了1146个跨越3000米海拔梯度的永久地块.
- 使用物种平均温度指标值的变化估计热化.
- 观察到的热化速率与基于同热移的预期速率的比较.
主要成果:
- 植物群体的热化程度是血管植物群体的2.1倍.
- 热性化是由热性/介质性物种的增加驱动的,而不是适应寒冷的物种的丧失,这表明社区的填充.
- 管理的草原表现出比森林更高的热化,高海拔社区接近预期的变暖速度.
结论:
- 植物更高的响应能力与它们的聚水和分散能力有关.
- 森林由于微气候缓冲而表现出较低的热化.
- 气候变暖的影响在植物群体,土地使用类型和海拔上是异质的.
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