Soil respiration (Rs) has been usually measured during daylight hours using manual chambers. This approach assumes that measurements made during a typical time interval (e.g., 9 to 11 am) represent… More
Water‐limited ecosystems occupy nearly 30% of the Earth, but arguably, the controls on their ecosystem processes remain largely uncertain. We analyzed six site years of eddy covariance measurements of evapotranspiration… More
Soil CO2 efflux is the primary source of CO2 emissions from terrestrial ecosystems to the atmosphere. The rates of this flux vary in time and space producing hot moments (sudden… More
Similar nonsteady-state automated chamber systems were used to measure and partition soil CO2 efflux in contrasting deciduous (trembling aspen) and coniferous (black spruce and jack pine) stands located within 100km… More
Automated measurements of the net forestfloor CO2 exchange (NFFE) were made in a mature (130yearold) boreal black spruce forest over an 8year period (2002–2009) with the objectives of (1) quantifying… More
Factors controlling the seasonal and interannual variability of net ecosystem productivity (FNEP), gross ecosystem photosynthesis (Pg), ecosystem respiration (Re) and evapotranspiration (E) of a mature boreal black spruce forest in… More