【个人简介】

Matthew Hurteau is an ecologist who conducts fundamental and applied research on forests and fire. He is a professor of quantitative ecology at the University of New Mexico, where he uses observations, experiments, and models to better understand how the changing climate is altering forests and increasing forest flammability, and how forest management can mitigate the chance of extreme fire behavior.

【报告题目】

Increasing forest flammability results from a legacy of land-use and changing climate

【报告摘要】

Human intervention in and alteration of fire regimes has reshaped forest ecosystems, increasing biomass density and changing potential fire behavior in seasonally dry forests. More recently, changing climatic conditions are making forest biomass more available to burn because of increasing atmospheric water demand. The interaction of past land management and ongoing climate change has decreased forest resilience and we are now experiencing a substantial transition from live tree to dead tree biomass in many ecosystems around the world. This surplus biomass increases the risk of fire, which could reinforce vegetation type transition away from forests. Determining the limits to current management practices and identifying new options for managing these ecosystem changes is essential for increasing forest resilience to changing climatic conditions.

梁爽 

【个人简介】

梁爽，浙江大学特聘研究员。研究工作主要关注野火、台风等自然干扰过程对森林物种组成和生态系统碳过程的影响，以及生态系统管理策略在森林应对气候变化和干扰中的作用。

【报告题目】

气候-野火-植被的交互作用及其对森林生态系统的影响

【报告摘要】

野火是自然生态系统的固有过程。野火与气候、植被的交互作用影响着森林的景观结构、分布格局与生态系统功能。当前林火干扰受到气候变化和人为干预等全球变化因素的影响，在这一背景下，森林管理策略应致力于最大程度地保护森林的可持续性和树种多样性，通过增加森林的景观异质性，提高森林对野火的抵抗力和恢复力。我们利用森林干扰与演替模型模拟了森林的群落结构和功能对林火和气候变化共同作用的响应；探讨了森林管理策略对生态系统碳稳定性的影响。