aafc - mcgill university · • role of aafc in water ... • water quality protection •...
TRANSCRIPT
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AAFC and
H2O
Ian D CampbellDirector, Integrated Natural Resources
Agri-Environment Services BranchAgriculture and Agri-Food Canada
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AAFC and Water: Outline
• Role of AAFC in water• Irrigation and drainage engineering• Water quality protection• Irrigation agronomy• Climate change• International engagement
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Water Policy Pressures and Drivers• Consumer pressures: demand
for safe, sustainable food• Citizen pressures: demand for
environmental goods and services
• Environmental pressures: climate change is predicted to increase variability in water supply
• Demand pressures: water demand from other sectors is rising (e.g. municipal, industry)
Canadians value water more highly than all other national resources (including forests, oil & gas and agricultural land)- Feb. 2010 RBC/Unilever Poll
Nutrient-induced algal blooms in L. Winnipeg put a $100 million tourism industry and a $20 million commercial fishery at risk.
Drought is Canada’s “worst natural disaster”and cost $3.6 billion in losses for 2001-2002
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“Water” is not one issue
Quantity QualityMaintaining safe andsufficient water supplies forproduction and theenvironment in the context of:- changing natural availability (e.g. climate change)- changing demands(e.g. rising municipal demand)
Reducing flow of excess nutrients and contaminants into the environment and back into production• Excess nutrients• Pathogens • Sediment• Pesticides• Emerging contaminants (PPCPs, GMOs, nanoparticles)
(a) On-farm water supply(b) Integrated management of agricultural impacts on the watershed
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Activities on Water Policy• Water identified as high priority under Growing
Forward– Approach to water policy varies by province under flexible GF
approach• Past water supply activities
– Rural Water Development and National Water Supply Expansion Programs
• Agri-environmental stewardship programs– EFPs and BMPs (nutrient management, riparian buffers,
irrigation efficiency, etc.)• Science and research
– WEBs, Agri-Geomatics, NAHARP, FEMS, SAGES, EG&S
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Supply vs. Demand-Side OptionsD
EMA
ND
-SID
ESU
PPLY-SIDE
Dam-building
Well drilling
Irrigation expansion
Water pricing
WUE measures
Drought-tolerant crops
Storage
Drainage
We need to address all parts of this spectrum – but where should the balance be?
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Interlocking strategy
Integrating water quantity/quality and surface/ground water
(2) Pursue integrated management at the watershed level
(3) Address critical research and technology development areas
(1) Maximize on-farm water use and storage efficiency
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Irrigation and Drainage EngineeringServices provided:Project managementHydrological interpretation/analysisDevelopment/testing of monitoring tools
Flow measurement
Water sampling
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Irrigation and Drainage
Engineering
• Junction dam rebuilt 2009
• Area hit by torrential rains in 2010
• Flash floods wiped out part of Trans-Canada Highway
• Dam survived
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Investigation of Innovative and Environmentally Sustainable Surface Water Intake Screen Designs
Irrigation and Drainage Engineering
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Watershed Evaluation of BMPs:9 Cross-Canada ‘Living Laboratories’
Lower Little Bow
Thomas Brook
Souris RiverBlack Brook
Bras d’Henri
Pipestone Creek S. Tobacco Ck
Salmon RiverSalmon River
South Nation
L. Little Bow
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WEBs BMPs by Watershed
WEBs BMPs BC AB SK MB ON QC NB NS PEI
Cattle exclusion fencing (off-stream water)
Off-stream watering without fencing
Riparian vegetation management
Nutrient input / mgt (chem; manure)
Tillage / residue mgt
Crop rotations
Perennial cover
Reduced herbicide toxicity
Winter bale-grazing
Irrigation efficiency
Diversion terraces, grassed waterways
Surface runoff / tile drainage control
Buffer strips
Farmyard runoff management
Runoff retention pond
Wetland restoration
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Key Elements of WEBs
• WEBs tests BMP watershed-scale impacts
• Started 2004, widely acknowledged as a highly successful venture
• Not all results are as predicted from smaller-scale studies!
• Represents an era of close inter-agency and key interdisciplinary cooperation
• WEBs ‘living laboratories’ represent a cross section of agricultural landscapes
PEI
SK
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• Controlled Tile Drainage in the South Nation Watershed, ON
• Significantly reduced N & P loading in local surface waters and at the watershed outlet
• Economical: Yield increases pay for installation within 4-5 years (corn and soybeans).
• May require very little incentive, tech transfer, publicity, limited funding
• Now on S. Nation and Ontario provincial BMP lists
Win-win Example
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Water Quality and Food Safety
Research on reducing pathogens in irrigation storage reservoirs by aerating the reservoir and through various other treatments.
Also research on treatment of agricultural wastewater, particularly from cattle containment areas, to avoid source-water contamination.
Non-aerated
Aerated
Pathogens
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Water Quality and Food Safety
Reviewing Canadian guidelines for pathogens.
Most Agricultural water quality guidelines relate to productivity, however pathogen guideline relates directly to food safety (crops to be eaten raw)
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Red-Assiniboine ProjectObjectivesEvaluate the potential to
utilize watershed modeling to simulate the water quality impacts of a changing landscape with respect to:– Land use – BMP adoption levels– Municipal wastewater
treatment
Decision Support System
“On the ground”Action
Watershed Modeling
Ultimately, to guide integrated watershed resource management and agri-environmental programming and policy
Riparian buffer analysis in the La Salle River Watershed
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Irrigation agronomy
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Climate Change: Projected Moisture Deficit 2050 (CGCM1)
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Projected Drought Scenarios
(Bonsal, 2006)
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Climate Change Adaptation Roadmap13 Adaptation Workshops
Whitehorse
Vancouver
Calgary
Saskatoon Winnipeg –Regional
Windsor
TorontoOttawa –Federal Family
Québec Moncton
St. John’s
Winnipeg –Aboriginal
Ottawa –International
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International Activities
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EthiopiaMedium to long term food
security• Sustainable irrigation
development of land and water resources
• Surface water storage, diversion and conveyance works
• Groundwater storage• Efficient water use
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Global Research Alliance
• New Zealand-led initiative stemming from Copenhagen meeting
• 31 countries participating
• Focus on greenhouse gas mitigation in agriculture
• Canadian component emphasizes livestock, agro-forestry and irrigation