A5077075484- Soil Carbon and Nitrogen Dynamics
- Agroforestry and silvopastoral systems
- Peatlands and Wetlands Ecology
- Agronomic Practices and Intercropping Systems
- Soil and Water Nutrient Dynamics
- Bioenergy crop production and management
- Fire effects on ecosystems
- Atmospheric and Environmental Gas Dynamics
- Soil Management and Crop Yield
- Hydrology and Watershed Management Studies
- Legume Nitrogen Fixing Symbiosis
- Clay minerals and soil interactions
- Agriculture Sustainability and Environmental Impact
- Methane Hydrates and Related Phenomena
- Plant nutrient uptake and metabolism
- Agriculture and Rural Development Research
- Climate change and permafrost
- Indigenous Studies and Ecology
- Climate change impacts on agriculture
- Forest Biomass Utilization and Management
- Soil and Unsaturated Flow
- Conservation, Biodiversity, and Resource Management
- Coal Properties and Utilization
- Hydrology and Sediment Transport Processes
- Soil erosion and sediment transport
University of Waterloo
2016-2025
University of Guelph
2000-2001
Agriculture in the boreal and Arctic regions is perceived as marginal, low intensity inadequate to satisfy needs of local communities, but another perspective that northern agriculture has untapped potential increase supply food even contribute global system. Policies across jurisdictions target expansion intensification agriculture, contextualized for diverse social settings market foci north. However, rapid pace climate change means traditional methods adapting cropping systems developing...
Knowledge of soil nitrous oxide (N2O) and carbon dioxide (CO2) fluxes in unfertilized perennial bioenergy crops on marginally productive cropland is crucial to understanding their climate mitigation benefits through reduced greenhouse gas (GHG) emissions. The static chamber method was used quantify compare N2O CO2 miscanthus (Miscanthus giganteus L.), switchgrass (Panicum virgatum willow (Salix miyabeana L.) a successional site over two growing seasons. Mean ranged from –0.02 0.09 µg N2O-N...
Abstract The Argentine Pampa is one of the major global regions for production maize ( Zea mays L.) and soybean Glycine max L. [Merr.]), but intense management practices have led to soil degradation amplified greenhouse‐gas (GHG) emissions. This paper presents preliminary data on effect maize‐soybean intercrops compared with sole crops short‐term emission rates CO 2 N O its relationship moisture or temperature over two field seasons. Soil organic carbon (SOC) concentrations were...
Despite progress in understanding microbial biogeography of surface soils, few studies have investigated depth-dependent distributions terrestrial microorganisms subsoils. We leveraged high-throughput sequencing 16S rRNA genes obtained from soils collected the rare Charitable Research Reserve (Cambridge, ON, Canada) to assess influence depth on bacterial communities across various land-use types. Although were strongly influenced by all sites, magnitude this was variable and demonstrated...
Knowledge of freeze-thaw-induced carbon (C) and nitrogen (N) cycling concomitant nitrous oxide (N2O) dioxide (CO2) emissions in perennial bioenergy crops is crucial to understanding the contribution these mitigating climate change through reduced greenhouse gas (GHG) emissions. In this study, a 49-day laboratory incubation experiment was conducted compare impact freeze-thaw cycles on N2O CO2 different [miscanthus (Miscanthus giganteus L.), switchgrass (Panicum virgatum willow (Salix...
ABSTRACT Understanding carbon (C) storage in different soil‐sized fractions of perennial bioenergy crops enhances our knowledge how these contribute to long‐term soil organic (SOC) storage, with positive implications for mitigating climate change through C sequestration. However, the extent which remains unclear. Hence, this study investigated SOC contents under Miscanthus ( × giganteus L.), willow Salix miyabeana switchgrass Panicum virgatum and a successional site. We also quantified...
Aboriginal people in Canada experience disproportionately high rates of diet-related illnesses, such as obesity and diabetes. Food insecurity has been identified a contributing factor to these illnesses along with loss traditional lifestyle. Current food systems within northern subarctic arctic regions rely heavily on imported foods that are expensive (when available), environmentally unsustainable. A warming climate present challenges, but also offers the opportunity for local agricultural...
Biochar, a carbon (C)-rich material produced by the pyrolysis of organic residues, is frequently used as soil amendment to enhance fertility and improve properties in tropical climates. However, temperate agriculture, impact biochar on plant productivity remains uncertain. The objective this review give an overview challenges opportunities using soils. Among various challenges, type feedstock conditions during produces biochars with different chemical physical properties, resulting...
Abstract Litterfall from riparian vegetation is a major source of nutrients for stream invertebrates. However, replacement forests with agricultural crops may result in reduced litter quantity and quality therefore severely affect trophic structure. inputs their associated N flux were measured 1996 1997 at Washington Creek, an agriculturally degraded southern Ontario, Canada. varied significantly ( p < 0.05) among three treatment areas, varying tree densities (3.14, 2.43, 2.17 trees m −2...
The Pampa comprises the most productive land in Argentina, but widespread adoption of sole cropping has drastically reduced soil organic carbon (SOC) stocks. This paper presents baseline data on effects maize‐legume inter‐crops compared with maize and soyabean crops SOC nitrogen (N) stocks, gross turnover, microbial biomass (SMB), matter light fraction (LF) partitioning (C) derived from C 3 ‐ 4 into SOC, LF SMB. For characteristics, only C:N ratio was significantly different (0–120 cm)...
Biobased residues derived from organic urban waste materials can be processed to produce soil amendments that enhance fertility and carbon sequestration. However, the extent of sequestration by biobased depends on interaction between their physicochemical properties, climate, agroecosystem management practices. Our objective was predict how different (compost, anaerobic digestate, or biosolids), compared nitrogen fertilizer, affect stocks under continuous cropping crop rotation in Ontario,...
Knowing short-term gains and losses of soil organic carbon (SOC) is crucial for understanding the role different land management practices in climate change mitigation. This study evaluated flow (C) from two differently configured intercrops [1:2 (one row maize rows soybean); 2:3 (two three soybean)] compared to a soybean sole crop as result residue addition. Addition or residues significantly increased (p < 0.05) SOC, light fraction (LF-C), microbial biomass (SMB). Soil C native sources was...