Table of Contents
2: Location, Borders, and Lakes
3: Geologic Structure and Landforms
6: Pre-historic and Early Historic Settlements
7: Survey Systems
8: Southern Hamlets, Villages, and Towns
9: Mennonite and Hutterite Settlements
10: First Nations Settlements
11: Northern Settlements
12: The Southern Cities
13: Mining and Oil Extraction
15: Industry / Manufacturing
16: Water Resources
17: Parks, Recreation, Sports
18: Transport and Communications: Past and Present
19: Legal Issues and Law Enforcement
Click for chapter introduction
The distribution of agricultural land in south and central Manitoba is easily mapped using small-scale images that provide an overview. At a larger scale the patterns produced by various stages of harvesting provide some of the most distinctive images of southern Manitoba. Old photos record obsolete techniques, and newer images demonstrate techniques used to cope with high evaporation rates and limited precipitation (field shelterbelts and irrigation). As with natural vegetation, so too with crops, colour infrared photos are useful in detecting crop types and diseases.
14.23: Irrigation Systems Near Douglas
Irrigation in Manitoba is not as prevalent as it is in Alberta and Saskatchewan because in the largest part of Agro-Manitoba, most of the time there is enough precipitation for the crops grown. However, in recent years with crop diversification irrigation has become more common, particularly on the Assiniboine Delta where there is a good assured ground water source. Here, potatoes are the crop most commonly gown under irrigation using mainly the center-pivot irrigation system.
Shown here is part of the Assiniboine Delta surface north of Shilo. The divided Trans-Canada Highway 1 crosses the centre of the area. A truck 2 and a car 3 can be seen proceeding west on the northern lane, and two trucks 4 and a car 5 can be seen proceeding east on the southern lane, a remarkably low density of traffic compared with a similar highway in southern Ontario. South of the highway is the CP railway line 6.
North of the Trans-Canada Highway are two centre-pivot systems; one covers most of a quarter section 7 and the other most of a half section 8. A ground water pump is located at the center, and a distribution pipe leads out from this—seen best in the case of the half section system 9. A result of these operations is a circular or semi-circular field shape. In another field southwest of the quarter section operation, a feed pipe can be seen 10 leading out from a ground water supply 11, but there is not a circular-shaped field.
The photograph was taken in the spring so crops will just have been planted. Consequently, many of the fields are the characteristic dark tone of bare fields. In several cases fields are very dark-toned where cultivation has occurred 12. In the case of the half section operation, the fields display five different tones and textures indicating different uses.
The settlement in the northwest is probably a Hutterite Colony 13 with barns, storage sheds, and residential buildings. In addition four farmsteads occur near the Trans-Canada Highway 14.
Figure 14.23: Irrigation Systems Near Douglas
Vertical air photograph: MB96001-252
Flight height: 7,000 feet a.s.l.; lens focal length: 152.098 mm
Scale: 1:12,000 (approx.)
Date: May 27, 1996
Location: Township 11; Range 16W1
Map sheets: 1:250,000 62G Brandon
1:50,000 62G/13 Brandon