10月30日：Plant traits, litter fates and decomposition rates

主 讲 人：Hans Cornelissen 教授

主 持 人：阎恩荣 教授

开始时间：2017-10-30（周一）下午15:00

讲座地址：闵行校区资环楼148报告厅

主办单位：生态与环境科学学院 科技处

报告人简介：

Hans Cornelissen教授就职于荷兰阿姆斯特丹自由大学(Vrije University Amsterdam)地球与生命科学学院。他的研究兴趣集中于植物性状(plant traits)对全球生态系统功能的影响，通过植物物种的性状差异来理解生态系统碳与营养循环过程，并揭示全球变化通过改变植被组成进而带来的生态学后果。Cornelissen教授的研究结果发表在Nature、Ecology Letters、Ecology、New Phytologist、Global Change Biology、Journal of Ecology、Functional Ecology等国际著名生态学专业刊物上，总引用率超过25000次，第一作者单篇引用率2050次，H指数为67。同时，Cornelissen教授与中国、美国、英国、德国、日本、法国、瑞典、澳大利亚、西班牙、新西兰、阿根廷、俄罗斯与巴西等众多国家的研究团队进行了植物性状与生态系统功能的研究合作，推动该方向的国际联网研究。

报告摘要：

Functional traits of plants tell us a lot about the functioning of different plant species and their role in ecosystems. Defining functional traits as ‘Response Traits’ and ‘Effect Traits’ may help us to predict effects of environmental changes on ecosystem functions via changes in species composition. Response traits are the traits that improve the fitness of a plant species, for instance rooting depth for accessing water in deeper soil layers. Effect traits are traits that inform us about the effect that different species have on their environment, for instance the quality of their dead leaves (litter) determines litter decomposition rates in the soil. I will explain how the relationships between variation in response traits and effect traits of the main species in an ecosystem can help us to predict the response of important ecosystem processes and functions to environmental changes. In the second part of my talk I will give examples of important effect traits and how to study and measure them to better understand the role of plant species composition for soil stability, fire and decomposition in different ecosystems.