Chapter 4: Climate
Only a few aspects of an area’s climate show up on remotely sensed images, for example, the distribution of snowfall. However, air photos do show several of the effects of, and responses to, climate such as the construction of shelterbelts to protect against the wind.
4.5: Field Shelterbelts North of Lyleton
During the 1930’s drought, soil erosion was severe in this dry flat area in the extreme southwest of
From the earliest days of agriculture in the area, shelterbelts were built around farm buildings 2. A new strategy in response to the drought was the planting of field shelterbelts in north/south 3 or east/west 4 lines with trees brought from the tree farm at Indian Head in Saskatchewan. Farmers were also given grants for small-scale water projects such as the construction of dugouts 5 and small dams 6 to capture spring runoff. Gainsborough Creek 7, that flows west to join the Souris River (off the photo), is intermittent in this area and more a series of ponds 8—probably dam-created for water supply—rather than a continuous river. As is usual, roads follow section lines 9, and in two cases they are relatively newly constructed 10.
Figure 4.5: Field Shelterbelts North of Lyleton
Vertical air photograph: A16274-88
Flight height: 10,500 feet a.s.l.; lens focal length: 152.63 mm
Date: July 29, 1958
Scale: 1:17,600 (approx.)
Location: Townships 1 and 2; Range 28 WI
Map sheets: 1:250,000 62F Virden
1:50,000 62F/3 Gainsborough