报告题目：Long term drivers of aboveground-belowground linkages and ecosystem functioning
主讲人：David Wardle 院士
主持人：阎恩荣 教授
讲座时间：11月11日 9:30am
讲座地点：闵行校区资环楼352
主办单位：华东师范大学 生态与环境科学学院
报告人简介：
David Wardle，西班牙皇家科学院院士，欧洲科学院院士，现任瑞典于默奥大学生态学教授。长期致力于研究地上-地下群落间相互联系，以及这些联系如何驱动陆地生态系统功能。研究内容主要包括：岛屿生物多样性和生态系统功能、入侵动植物群落及其生态效应；跨演替、退化和海拔梯度的生态系统变化等。已发表学术论文近400篇，其中30余篇发表于Science
和Nature上，出版专著2部，论文被引量超过11万次。其学术贡献荣获美国生态学会“惠特克杰出生态学家奖”、Journal of Ecology
“杰出生态学家奖”等多项重要荣誉。
报告内容简介：
All terrestrial ecosystems consist of communities of aboveground and belowground
organisms, which interact over short timescales, but which both drive and respond
to ecosystem processes over much longer time scales that greatly exceed the
duration of experiments and observations. Here I illustrate these linkages across
contrasting time scales using three ‘real world’ examples. The first
demonstrates, for a group of lake islands in northern Sweden that we have been
studying for the past three decades, that fire disturbance is a powerful driver of
plant-microbe associations which in turn drive ecosystem carbon storage over
centuries to millennia. The second involves ecosystem ‘retrogression’, which is
the process through which nutrient availability and thus ecosystem processes
decline over millenial time scales as due to both abiotic and biotic factors. The
third explores how elevation and thus temperature impact plant N:P stoichiometry
and ecosystem functioning for mountains around the world which have developed
over geological timescales. These examples each highlight that understanding
aboveground-belowground linkages offer insights about ecosystem drivers,
including those that operate over lengthy timescales such as climate and geology,
as well as those that are relevant to understanding the impacts of human-driven
global change.