报告题目: |
全球变化科学紫荆论坛第250期:Linking disturbance research in landscape ecology to earth system science |
报告人: |
Jian Yang |
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University of Kentucky
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报告时间: |
2018-06-13 10:30 |
报告地点: |
清华地学系蒙民伟科技大楼南楼S818 |
主办单位: |
地球系统科学系 |
简介: |
Disturbance is major driver of terrestrial ecosystems across multiple scales. At a site scale, disturbance resets the clock of vegetation succession and creates multiple successional pathways through its interaction with site environmental conditions. At the global scale, disturbance helps to regulate global productivity and diversity. However, it is the at the landscape and regional scale that disturbance has been increasingly recognized as an indispensable process in shaping landscape structure and function. In this seminar, I will use three case studies that span from the US to China to illustrate the influence of disturbance on wildlife habitat and biodiversity, species distribution in response to climate change, and landscape heterogeneity and dynamics. Because disturbance process is inherently spatial and often covers large area, research of disturbance from the geoscience team has been mainly focusing on the detection and characterization of disturbance regimes with the modern geospatial technology. Here, I argue that it is the time to integrate ecological perspectives of disturbance with the physical geoscience to better understand the dynamic interactions of disturbance and land surface in a global change context, and identify key pathways for a sustainable human-earth system. |
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