A5027797802- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Fire effects on ecosystems
- Tree-ring climate responses
- Climate variability and models
- Forest ecology and management
- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Remote Sensing in Agriculture
- Plant responses to elevated CO2
- Soil and Unsaturated Flow
- Air Quality Monitoring and Forecasting
- Atmospheric chemistry and aerosols
- Soil and Water Nutrient Dynamics
- Wind and Air Flow Studies
- Climate change and permafrost
- Vehicle emissions and performance
- Forest Management and Policy
- Remote Sensing and LiDAR Applications
- Plant Ecology and Soil Science
- Species Distribution and Climate Change
- Air Quality and Health Impacts
- Cryospheric studies and observations
- Coastal wetland ecosystem dynamics
- Horticultural and Viticultural Research
University of British Columbia
2013-2024
ORCID
2022
University of Kragujevac
2022
University of Northern British Columbia
2020
Thompson Rivers University
2020
Ministry of Forests
2020
Abstract Water vapour and CO 2 fluxes were measured using the eddy correlation method above below overstorey of a 21‐m tall aspen stand in boreal forest central Saskatchewan as part Boreal Ecosystem‐Atmosphere Study (BOREAS). Measurements made at 39.5‐m 4‐m heights 3‐dimensional sonic anemometers (Kaijo‐Denki Solent, respectively) closed‐path gas analysers (LI‐COR 6262) with 6‐m 4.7‐m long heated sampling tubing, respectively. Continuous measurements from early October to mid‐November 1993...
The energy balance components were measured throughout most of 1994 in and above a southern boreal aspen ( Populus tremuloides Michx.) forest (53.629°N 106.200°W) with hazelnut Corylus cornuta Marsh.) understory as part the Boreal Ecosystem‐Atmosphere Study. turbulent fluxes at both levels using eddy‐covariance technique. After rejection suspect data due to instationarity or inhomogeneity, occasional erratic behavior lack closure led recalculation sensible latent heat their ratio available...
A boreal deciduous forest in Saskatchewan, Canada, sequestered 144±65, 80±60, 116±35 and 290±50 g C m −2 y −1 1994, 1996, 1997 1998, respectively. The increased carbon sequestration was the result of a warmer spring earlier leaf emergence, which significantly ecosystem photosynthesis, but had little effect on respiration. high 1998 coincident with one strongest El Niño events this century, is considered significant unexpected benefit.
Abstract The carbon and water budgets of boreal temperate broadleaf forests are sensitive to interannual climatic variability likely respond climate change. This study analyses 9 years eddy‐covariance data from the Boreal Ecosystem Research Monitoring Sites (BERMS) Southern Old Aspen site in central Saskatchewan, Canada characterizes primary controls on evapotranspiration, net ecosystem production ( F NEP ), gross photosynthesis P ) respiration R ). period was dominated by two extremes:...
Abstract We analyzed 17 months (August 2005 to December 2006) of continuous measurements soil CO 2 efflux or respiration ( R S ) in an 18‐year‐old west‐coast temperate Douglas‐fir stand that experienced somewhat greater than normal summertime water deficit. For content at the 4 cm depth θ > 0.11 m 3 −3 (corresponding a matric potential −2 MPa), was positively correlated temperature T ). Below this value , however, largely decoupled from and evapotranspiration, ecosystem gross primary...
Arctic wetlands are known methane (CH
Abstract To evaluate the carbon budget of a boreal deciduous forest, we measured CO 2 fluxes using eddy covariance technique above an old aspen (OA) forest in Prince Albert National Park, Saskatchewan, Canada, 1994 and 1996 as part Boreal Ecosystem‐Atmosphere Study (BOREAS). We found that OA is strong sink sequestering 200 ± 30 130 g C m –2 y –1 1996, respectively. These measurements were 16–45% lower than inventory result mean increment was about 240 between 1919 1994, mainly due to...
The response of net ecosystem productivity (NEP) and evaporation in a boreal aspen (Populus tremuloides Michx.) forest black spruce (Picea mariana (Mill.) BSP) Canada was compared using newly developed realistic model surface-atmosphere exchanges carbon dioxide (CO 2 ), water vapor, energy as well eddy covariance flux measurements made over 6-year period (1994-1999). by incorporating process-based two-leaf (sunlit shaded) canopy conductance photosynthesis submodel the Canadian Land Surface...