My research focuses on multi-scale effects of disturbance on ecosystem structure and function. In the past, I have investigated the influence of drought, permafrost thaw or warming on above and belowground plant dynamics, greenhouse gas fluxes and litter decomposition. I am also interested in regional to global-scale drivers of carbon sequestration. My toolkit draws from ecosystem ecology, biogeochemistry, plant ecology and systems thinking and I specialize in carbon-rich systems such as northern peatlands and permafrost features.
Doctor of Philosophy, McGill University (2016)
Master of Science, Villanova University (2010)
Bachelor of Science, York University (2007)
The landscape of soil carbon data: emerging questions, synergies and databases
Progress in Physical Geography
View details for DOI 10.1177/0309133319873309
- Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions BIOGEOSCIENCES 2018; 15 (17): 5287–5313
- Post-thaw variability in litter decomposition best explained by microtopography at an ice-rich permafrost peatland ARCTIC ANTARCTIC AND ALPINE RESEARCH 2018; 50 (1)
The Fate of Root Carbon in Soil: Data and Model
View details for DOI 10.1029/2018EO112593
Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter.
Global change biology
2018; 24 (2): e705–e718
Soil organic matter (SOM) supports the Earth's ability to sustain terrestrial ecosystems, provide food and fiber, and retains the largest pool of actively cycling carbon. Over 75% of the soil organic carbon (SOC) in the top meter of soil is directly affected by human land use. Large land areas have lost SOC as a result of land use practices, yet there are compensatory opportunities to enhance productivity and SOC storage in degraded lands through improved management practices. Large areas with and without intentional management are also being subjected to rapid changes in climate, making many SOC stocks vulnerable to losses by decomposition or disturbance. In order to quantify potential SOC losses or sequestration at field, regional, and global scales, measurements for detecting changes in SOC are needed. Such measurements and soil-management best practices should be based on well established and emerging scientific understanding of processes of C stabilization and destabilization over various timescales, soil types, and spatial scales. As newly engaged members of the International Soil Carbon Network, we have identified gaps in data, modeling, and communication that underscore the need for an open, shared network to frame and guide the study of SOM and SOC and their management for sustained production and climate regulation.
View details for PubMedID 28981192
- Temporal and Spatial Variation in Peatland Carbon Cycling and Implications for Interpreting Responses of an Ecosystem-Scale Warming Experiment SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 2017; 81 (6): 1668–88
- Biophysical drivers of seasonal variability in Sphagnum gross primary production in a northern temperate bog JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 2017; 122 (5): 1078–97
A New Platform for Managing Soil Carbon and Soil Health
View details for DOI 10.1029/2017EO080753
- Ecohydrological feedbacks in peatlands: an empirical test of the relationship among vegetation, microtopography and water table ECOHYDROLOGY 2016; 9 (7): 1346–57
- Environmental correlates of peatland carbon fluxes in a thawing landscape: do transitional thaw stages matter? BIOGEOSCIENCES 2015; 12 (10): 3119–30