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IMCIN - Irrigation Management Climate Information Network

The content of the IMCIN site is intended to provide the irrigation industry in Alberta with up-to-date information on Irrigated Crop Water Use and Decision Support Tools to help irrigators make on farm water management decisions.

Whether you are an irrigation water user, water manager or affiliated in some other way with irrigated crop production, the IMCIN Web Page will keep you up to date with current data, heat units and provide crop water use information and a forecast for crop water requirements (IRRI-Cast) throughout the major irrigated areas of southern Alberta.

It is through the cooperation of Agriculture and Agri-Food Canada, Environment Canada, Alberta Environment, and Agriculture and Rural Development that the information on the IMCIN site is made possible.



Water Used for Irrigation

Irrigation for agriculture is the largest user of water in Alberta, accounting for 60 to 65 per cent of all water consumed on average. In 2007, irrigation - including small, private irrigators - accounted for nearly 43 per cent of allocated surface water, or more than 4.1 billion cubic metres. It represents almost 73 per cent of all water allocated in the South Saskatchewan River Basin.Thirteen organized irrigation districts collectively represent the largest amount of water allocated for a specific purpose in Alberta at over 3.5 billion cubic metres. The four largest districts account for 83 per cent of total diversions, with two more accounting for an additional 12 per cent. Seven remaining small districts account for the other five per cent.

Nearly all uses of water result in some water that is not returned back to the ecosystem from which it was derived. With irrigation, the majority of water applied to crops is taken up by plants for growth, or evaporates into the atmosphere. Additionally, a small amount of water is never used for irrigation itself; however, it is required to maintain the minimum depth of water in canals and reservoirs in order to transport irrigation water through the system. Therefore, some of this water ends up as return flow back into other creeks and/or rivers, though seepage and evaporation losses in canals and reservoirs can occur.

In much of southern Alberta, there is not enough rainfall and moisture to naturally sustain agricultural crops. However, there is abundant sunshine and heat that can contribute to growing many different crops if water were not a limiting factor. Early in the settlement of Alberta, it was recognized that agriculture would not be successful in the southern region without an abundant and assured supply of water to irrigate fields. Irrigation Districts were organized and granted water licenses to divert large quantities of water from the tributaries of the South Saskatchewan River, primarily the Oldman (St. Mary, Waterton and Belly) and Bow Rivers.

What does the indicator show?

Water requirements for irrigation vary from year to year. In general, the greatest factor driving demand for water is the weather, although the type of crops grown also influences demand.

This indicator depicts the reported amount of water diverted over time by Irrigation Districts.

Trend: Generally stable with large year-to-year variability

Irrigation diversions are driven by the relationship between supply and demand during wetter and drier years. For example, demand for irrigation water will be highest when it is a relatively hot and dry year. However, these years are typically when the available supply of water tends to be less. In wetter years, more water is generally available to divert, but crops may not need as much irrigation. The balance between supply and demand can be partially addressed by planning what crops to plant according to wetter or drier years. Growing fewer water-intensive crops in drier years will help conserve water and reduce the need for increased irrigation diversions.

Note that total allocations permitted are higher than amounts historically diverted. Allocations do not guarantee water supply; rather, they guarantee the right to take water if sufficient water is available.

 

 

Alberta Agriculture and Farm Water

Alberta Agriculture and Rural Development have an impressive list of data sources and insights on rural water and well water management and conservation, water use and testing. Click here...to learn more.


They also have a good list of data sources and insights on rural Groundwater, Water Protection, Stream Monitoring, Water Treatment, and Watersheds. Click here...to learn more.


Finally, Alberta Agriculture and Rural Development have a list of insights on rural Water Analysis & Treatment, Dugouts & Dams, Livestock Needs, Rural Water Systems, Water Wells & Springs. Click here...to learn more.



Alberta's Irrigation System

The distribution of the irrigation area in Alberta primarily involves the 13 irrigation districts in southern Alberta (approximately 525,000 hectares), but also includes the "private irrigation" of more than 100,000 hectares of irrigated land as far north as the Peace River country.

Although agricultural production under intensive irrigation is not unique to Alberta, the irrigated area within the province represents 65% of all of the total irrigation area across Canada. With more than 8,000 kilometres of conveyance works and more than 50 water storage reservoirs devoted to managing a finite water resource, based around irrigated agriculture, Alberta is the capital of irrigation in Canada.

Across the more than 625,000 hectares of irrigated land in the province, irrigation producers are able to grow a great diversity of crops, many of which can only be successfully produced under the longer and warmer growing season of the irrigated area, but a region where naturally-available moisture for crop growth is generally less than half that required and very erratic in its distribution. With more than 40 different types of crops being grown, irrigation water users can have the flexibility needed to sustain viable farm enterprises, even during times with market swings in commodity prices. However, having that market flexibility does not come to the producer without a significant investment in irrigation equipment and other agricultural production systems.

Irrigation in Alberta is unquestionably a significant part of the agricultural landscape, occurring on less than 6% of the cultivated land base in the province, but contributing more than 19% of the gross primary agricultural production.

In Alberta, irrigation (district and private) accounts for 96 percent of total water allocations for the agricultural sector, while allocations for stockwatering, feedlots and registration together make up the remaining 4 percent. As of 2005, registrations and licences allow withdrawals of up to 4,307,429 dam3, and this accounts for 45.3 percent of total water allocations in Alberta. However, irrigation licences in the SSRB account for 75% of the total volume of all South Sask. River Basin (SSRB) allocations.

Specific irrigation usage is as follows:
  • 20% of the allocations from the Red Deer
  • 76% of the allocations from the Bow River
  • 87% of the allocations from the Oldman River
  • 18% of the allocations from the Medicine Hat portion of the South Saskatchewan River
  • Click here...to view a map of Alberta's 13 Irrigation Districts.
  • Click here...for a copy of Alberta's Irrigation Districts Act.
  • Click here...for a copy of a presentation on Alberta's Irrigation Districts (Red Deer River Watershed Alliance General Meeting 2007).
  • Click here...for a copy of the 2008 Alberta Irrigation Information Booklet (Alberta Agriculture and Rural Development, Water Resource Branch).

There are 13 Irrigation Districts in Alberta:

The publication "Irrigation in Alberta" provides an overview of irrigation development in the province, from the late 1800s through to its emergence into the 21st century.
Irrigation in Alberta" is published by the Technology & Innovation Branch of Alberta Agriculture and Food.


Here are some additional insights on irrigation in Alberta:
  • Irrigation development in Alberta totals in excess of 1.6 million acres and represents two-thirds of all irrigation development in Canada. About 1.3 million acres are located in the 13 organized irrigation districts and about 300,000 acres in private irrigation developments.

  • Irrigation contributes almost 20 percent of the province’s gross agricultural production on about 5 percent of Alberta’s cultivated land. It is estimated that the direct and indirect impact of irrigation is worth about $5 billion to the Alberta economy.

  • The irrigation water distribution and management infrastructure supports the water needs of about 42,000 people in 50 municipalities, and 12 major industrial users.

  • More than 87,000 acres of wetland habitat have been created or enhanced by irrigation development in southern Alberta.

  • Irrigation district infrastructure has a 2003 replacement value of $2.5 billion dollars. Within the irrigation districts, there are 38 individual off-stream reservoirs, with live storage capacity ranging from a few hundred to 260,000 acre-feet. Combined, the live storage capacity of these reservoirs is nearly 1 million acre-feet.

  • The Irrigation Rehabilitation Program, initiated in 1968 has improved over 50 percent of the more than 7,600 kilometres of irrigation district conveyance works. To date, the combined rehabilitation contribution of the Alberta Government and Irrigation District water users totals approximately $665 million.