Vegetation, Climate, Man - Holocene Variability in monsoonal Central Asia (HOLOCENE CV)

中亚季风区的植被、气候、人类 - 全新世变异性 (HOLOCENE CV)

• 批准号: 42307641
• 负责人: Professor Dr. Martin Claußen
• 金额: --
• 依托单位: Max-Planck-Institut für Meteorologie (MPI-M)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/42307641?language=en
• 关键词: Vegetation; Climate; Man; Holocene; Variability

The primary aim of our project is to understand the relationship of Holocene climate, vegetation and human societies in monsoonal Central Asia by comparing target-oriented climate model simulations with proxy derived vegetation and climate reconstructions. The reconstructed climate trend is qualitatively in good agreement with the climate modelling results. Nevertheless, both methods show no clear large-scale but rather a sub-regionally different climate trend, revealing asynchronous moisture changes in different sub-regions of monsoonal Central Asia. Climate modelling results show on a large scale a weak influence of vegetation changes on Holocene climate change, but regionally the vegetation feedback can be strong. Furthermore, we demonstrated that vegetation changes in monsoonal Asia have an effect on climate in North Africa and the Middle East suggesting strong teleconnections. In the next phase of this project we want to figure out, which mechanisms determine the differences in Holocene climate trend/variability in the sub-monsoon regions and how the climate and vegetation change in monsoonal Central Asia is affected by teleconnections.

我们的项目的主要目的是了解全新世气候，植被和人类社会在季风中亚地区的关系，通过比较面向目标的气候模式模拟与代理派生植被和气候重建。重建的气候趋势与气候模拟结果在质量上是一致的。然而，这两种方法没有显示出明显的大尺度，而是一个次区域不同的气候趋势，揭示了在季风中亚不同的次区域的异步水分变化。气候模拟结果表明，在大尺度上，植被变化对全新世气候变化的影响很弱，但在区域上，植被反馈可能很强。此外，我们还证明了季风亚洲的植被变化对北非和中东的气候有影响，这表明存在强烈的遥相关。在该项目的下一阶段，我们想弄清楚，哪些机制决定了亚季风地区全新世气候趋势/变率的差异，以及季风中亚的气候和植被变化如何受到遥相关的影响。