Presentation on theme: "Impacts of Agriculture on Water quality in Canada Presentation to the Tri-Lateral Symposium Banff, Alberta, October 23-25, 2003 Richard Butts Science Director."— Presentation transcript:
Impacts of Agriculture on Water quality in Canada Presentation to the Tri-Lateral Symposium Banff, Alberta, October 23-25, 2003 Richard Butts Science Director
Worlds Water Total worlds water 1.3 x 106 km3 But,97.5 % salt water Fresh water 2.5 % 70% fresh water frozen Freshwater in lakes, rivers, groundwater very important!
Canada is a water rich country! Annually Can. Rivers discharge 7 % of worlds renewable freshwater supply. 1/4 of population depend on groundwater Great Lakes contain 18% of worlds fresh lake water (But its not always in the right place).
Canadian Rivers MacKenzie(in the east) and St. Lawrence (in the west) among worlds largest: 13, 17 (drainage area) 1, Amazon; 2, Congo 5, 16 (length) 1, Nile: 2, Mississippi 14, 15 (avg. ann. disharge) 1, Amazon; 2, Ganges
Plant Hardiness Zones
EC & AAFC Workshop on Impact of Agriculture on Environment – Halifax Aug., 2003 What are the major impactors on our Environment?
EC & AAFC Workshop on Impact of Agriculture on Environment – Halifax Aug., 2003 Criteria for Prioritization of Contaminants Degree of Concern APF Priority Ecosystem Health Gaps Feasibility
Priorities by substance/Issue Topic Category PesticidesH PhosphorusH NitratesH Greenhouse gasesM Soil erosionM PathogensM Habitat loss (degradation)M Heavy metalsM Ammonia (air) M EDS (antibiotics etc.)M Water conservation M Sediment loading in water M OdorsL Alien invasive speciesL
Topic Category Water Quality P in surface waterH Pathogens from livestockH PesticidesH Nitrogen in drinking waterM Nitrogen in waterM Endocrine disruptersM AntibioticsM Heavy metalsM SedimentsM SaltL
Environment Health National Program: Nutrients and Water Research Richard Butts Science Director
S&T Needs: Nutrients and Water Problems addressed: Adverse impacts of agriculture on the environment inefficient fertilizer use and loss of N and P to the environment toxic substance and contaminant accumulation in the environment pathogen movement from farm operations to municipal water Opportunities : Develop Best Management Practices to optimize production systems while minimizing adverse environmental effects. safe and efficient use of fertilizers and pesticides to preserve and improve soil and water quality
National Science Theme: Nutrients and Water 178FTE (46.5 RES; 20 Non-RES Prof) Current delivery Research projects carried out at 18 Centres across Canada, in 138 projects and 70 industry matching initiatives Current Centres of concentrated effort: Organic Residue: Lennoxville, Charlottetown Water: Fredericton, Ottawa Nutrients: Ste Foy, Lethbridge Pesticides:Lethbridge
Alignment of Science Theme: Water and Nutrients: Reducing risk from Intensive Livestock Operations Enteric bacteria, EDS, Ammonia loss reduction, Soil phosphorus Better understanding of soil processes; short and long-term Soil Carbon and Nitrogen dynamics, Long-term monitoring sites and capacity Development of Decision Support Systems (DSS) Refinement of soil and water testing procedures for nutrient recommendations and environmental assessment ; Scaling-up to landscape levels; Selection of more beneficial manure management practices
Science Theme Outcomes: Water and Nutrients: Enhanced understanding of nutrient cycling dynamics in soil Better nutrient cycling models Identification and assessment of nutrient conserving management practices and superior BMPs Safe and efficient management of manures and other organic amendments Best utilization of animal manures and other organic residues for maximum profit and minimum Human health and environmental impact Technologies to reduce odor, conserve nutrients and protect water resources from pathogens
Science Theme Outcomes: Water and Nutrients: Safe and efficient use of inorganic and organic fertilizer products Diagnostic tools for assessing nutrient and toxic element availability to crops and for predicting fertilizer application Nutrient management technologies and products to: improve synchrony between nutrient supply and nutrient uptake by crops; reduce nitrogen and phosphorous loss to the environment; decreased toxic substance accumulation in the environment; reduce phytoavailability of heavy metals Capacity to predict the response to nutrient management practices based on agro-ecologic and - climatic factors such as climate change
Science Theme Outcomes: Water and Nutrients: Impacts of agriculture-food production systems on water resources Quantified impacts of current agri-food production systems on water quality and quantity. Identified biological impacts of current agri-food production systems on water quality and quantity Beneficial (agricultural) management practices to preserve/improve water resources Development and quantification of BMPs that improve/ optimize water quality and quantity. Identified chemical/ biological impacts of best management practices on water quality and quantity
Science Theme Outcomes: Water and Nutrients: Large scale spatial and temporal trends in water resources as affected by agriculture Diagnostic tools for monitoring and assessing water quality and quantity Establishment of select, large -scale monitoring sites, representative of dominant agricultural production systems and agro-climactic environments across Canada. Determination of the magnitude and direction of water quality and quantity trends More effective use of plant-microbe interactions for nutrient management Improved microbial inoculants for more effective use of applied and residual nutrients Enhanced soil microbial activities which improve crop production and conserve the soil environment
Agriculture chemicals in Groundwater: Problem definition and restoration options Potato Research Centre Presentation to the Tri-Lateral Symposium Banff, Alberta, October 23-25, 2003 Richard Butts Science Director