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- 5Renewable Resources, Department of
- 5Renewable Resources, Department of/Journal Articles (Renewable Resources)
- 2Biological Sciences, Department of
- 2Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 1Roy Berg Kinsella Research Ranch
- 1Roy Berg Kinsella Research Ranch/Journal Articles (Kinsella Ranch)
Carbon and energy exchange by a black spruce – moss ecosystem under changing climate: testing the mathematical model ecosys with data from the BOREAS experimentDownload
There is some uncertainty whether net ecosystem productivity (NEP) of boreal black spruce forests is positive or negative under current climates and how NEP would change under hypothesized changes in future climates. The mathematical model ecosys was used to examine NEP of a boreal black spruce...
Changes in net ecosystem productivity and greenhouse gas exchange with fertilization of Douglas fir: Mathematical modeling in ecosysDownload
Abstract: The application of nitrogen fertilizers to Douglas fir forests is known to raise net ecosystem productivity (NEP), but also N(2)O emissions, the CO(2) equivalent of which may offset gains in NEP when accounting for net greenhouse gas (GHG) exchange. However, total changes in NEP and...
Controls on carbon and energy exchange by a black spruce–moss ecosystem: Testing the mathematical model Ecosys with data from the BOREAS ExperimentDownload
Stomatal limitations to mass and energy exchange over boreal black spruce forests may be caused by low needle N concentrations that limit CO(2) fixation rates. These low concentrations may be caused by low N uptake rates from cold boreal soils with high soil C:N ratios and by low N deposition...
Diurnal and annual exchanges of mass and energy between an aspen-hazelnut forest and the atmosphere: testing the mathematical model ecosys with data from the BOREAS experimentDownload
There is much uncertainty about the net carbon (C) exchange of boreal forest ecosystems, although this exchange may be an important part of global C dynamics. To resolve this uncertainty, net C exchange has been measured at several sites in the boreal forest of Canada as part of the Boreal...
Mechanisms of Aluminum Tolerance in Triticum aestivum L. (Wheat). I. Differential pH Induced by Winter Cultivars in Nutrient Solutions.Download
Twenty winter cultivars of Triticum aestivom L. (wheat) were grown in solution culture with and without aluminum (A1) (74 gM, 2.0 mg L-') for 14 days. Exposure to s increased root growth of the most tolerant cultivar, while both root and shoot growth were depressed in all other cultivars. On the...
Mechanisms of Aluminum Tolerance in Triticum aestivum L. (Wheat). II. Differential pH Induced by Spring Cultivars in Nutrient Solutions.Download
Twenty spring cultivars of Traticum aestivum L. (wheat) were grown in solution culture with and without aluminum (A1) (74 gM, 2.0 mg L-l) for 14 days. Root growth and shoot growth were depressed in all cultivars grown with A1; however, symptoms of A1 toxicity were most evident on roots. Based on...
Abstract:  The ecosys model was applied to examine the effects of peatland hydrology on soil respiration and ecosystem respiration at Mer Bleue peatland, Ontario, Canada. It was hypothesized that a decrease in near-surface microbial respiration in peat hummocks resulting from water table (WT)...
Interactions among the foraging behaviours of co-occurring animal species can impact population and community dynamics; the consequences of interactions between plant and animal foraging behaviours have received less attention. In North American forests, invasions by European earthworms have led...