Regions: Dehcho Region
Tags: physical sciences, active layer, permafrost, climate change, meteorology, peatlands, boreal forests, precipitation
Principal Investigator: | Sonnentag, Oliver (32) |
Licence Number: | 15816 |
Organization: | Université de Montréal |
Licensed Year(s): |
2022
2021
2019
2017
2016
2015
2014
2013
2013
|
Issued: | Jan 13, 2016 |
Objective(s): To determine the net effect of permafrost thawing-induced biophysical and biogeochemical feedbacks to the climate system and how do these two types of feedback differ between the discontinuous and continuous permafrost zones.
Project Description: This project will address the following questions: 1) What is the net effect of permafrost thawing-induced biophysical and biogeochemical feedbacks to the climate system? 2) How do these two types of feedback differ between the discontinuous and continuous permafrost zones? 3) Is the reported decrease (increase) in net CO2 (CH4) exchange based on plot- (<1m2) and ecosystem-scale (~1km2) flux measurements made over mostly tundra sites in the continuous permafrost zone generalizable to boreal forest and peatland ecosystems with discontinuous and continuous permafrost? 4) Do the net ecosystem CO2 and CH4 exchanges of boreal forest and peatland ecosystems in different permafrost zones respond differently to higher/lower precipitation inputs than, for example, thawing/growing season lengths? Data will be collected from two existing micrometeorological towers, one at Havikpak Creek and one at Trail Valley Creek. At eac... Show more