Ecohydrology

拟议的加拿大生态水文学研究教席将通过了解干旱和野火的严重程度如何影响泥炭地生态系统功能和弹性，制定一个国际知名的水和生态系统科学综合研究计划。将进行基于现场测量的实验操作，以确定干扰严重程度如何影响：i)生态水文反馈的标志和强度，以及ii)干扰后植被恢复和二氧化碳交换。实地研究的结果将与苔藓功能特征的参数化和基于物理的碳水模型相结合，以评估在什么条件下干旱和/或野火导致泥炭地生态系统制度转变，以及潜在的灾难性生态系统崩溃和碳损失。

The proposed Canada Research Chair in Ecohydrology will develop an internationally renowned integrative water and ecosystem science research program by understanding how drought and wildfire severity affect peatland ecosystem function and resilience. Field-based measurements experimental manipulations will be done to determine how disturbance severity affects: i) the sign and strength of ecohydrological feedbacks, and ii) post-disturbance vegetation recovery and CO2 exchange. The results from field-based research will be coupled with parameterizations of moss functional traits and a physically-based carbon-water model to assess under what conditions drought and/or wildfire drive peatland ecosystem regime shifts and potential catastrophic ecosystem collapse and carbon loss.