What is it?

Irrigation is the method in which a controlled amount of water is supplied to plants at regular intervals for agriculture. It is used to assist in the growing of agricultural crops, maintenance of landscapes, and the re-vegetation of disturbed soils in dry areas or during periods of inadequate rainfall.
Irrigation has a long and significant history in the economy of the Bow River Basin, with the Western and Eastern irrigation districts dating back to the 1930s and 40s, and the Bow River Irrigation District since 1950. Agricultural production in Alberta is a significant part of the total Canadian agricultural production, much of which is facilitated by irrigation. 

How does irrigation impact water quality in the Bow River Basin?

High-volume water users, including irrigation districts, divert water away from the mainstem of the river. This changes the volume of water in the river, which impacts the capacity of the river to dilute and/or assimilate substances (e.g., sediment, contaminants, nutrients). To read more about dilution and water quality click here
Increased salt concentrations can be caused by seepage from irrigation canals and return flows from irrigated lands. High salinity can increase water treatment costs, corrode plumbing and reduce crop yields. Contaminated groundwater from percolation of irrigation water or seepage from irrigation systems can both recharge and negatively impact water quality of rivers.  For example, the Colorado River receives 454 000 kg of salt annually.
Elevated concentrations of selenium in irrigation drainage water are linked to waterfowl deaths, deformities and reproductive failures.

What can we do about it?

The irrigation systems in Alberta are continually being updated to be more efficient with water use; improved efficiency of individual farm and ranch irrigation systems can also reduce water demand and runoff.
Much of the water demand in irrigation is determined by the weather and by the type of crop that is being grown. For the most part we cannot change the weather, but acting to limit climate change may help improve water quality and quantity in the long run.

Where can I find more information?

Sources

Thygesen, L. (2002, March 4). A primer on water quality: impact of crop production practices on water quality. Alberta Agriculture and Forestry. http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/wat3348  
Photograph of WaterPortal Board Member Ross Douglas

Ross Douglas

Board Member

Ross has extensive executive experience in Operations, Governance, Information Technology and Strategy at the board and senior management level including Mancal Corporation, Mancal Energy, Highridge Exploration and Atlantis Resources. He has worked in Oil and Gas, Coal, Commercial Real Estate, Portfolio Management, Recreation, Retail and Water and Wastewater Treatment. His experience is also geographically diverse having overseen operations in Canada, the United States, United Kingdom and Northern Ireland. Additionally, he has been on the board of companies with operations in Argentina, Azerbaijan, Barbados, Kazakhstan, and Russia. He has served on numerous Public, Private and Not for Profit Boards across a number of industries.

Ross has been active on several industry Boards and committees including the Canadian Association of Petroleum Producers (CAPP) and The Schulich School of Engineering Industry Advisory Council at the Schulich School of Engineering.

Photograph of WaterPortal Board Member Brian Mergelas

Brian Mergelas, PhD, ICD.D

Board Member

Brian is a seasoned Cleantech entrepreneur with a proven history of successfully bringing complex water technologies to the market.   With over 25 years of experience, he has led various organizations to achieve significant milestones in the industry. 

Having started as the founding CEO of the Pressure Pipe Inspection Company (PPIC) and later taking the helm at the Water Technology Acceleration Project (WaterTAP), Brian’s entrepreneurial spirit has been instrumental in driving innovation and growth within the sector. 

He is an active investor in the cleantech sector and has served on many boards including the Ontario Clean Water Agency. 

Actively engaged in industry associations like AWWA, WEF, IWA, and ASCE, Brian enjoys collaborating with fellow professionals to promote advancements in the field. 

Brian holds an undergraduate degree and a PhD in Physics from Queen’s University, which has provided him with a solid technical foundation.   As a member of the Institute of Corporate Directors, he brings valuable insights to corporate governance.