Manitoba displays a large range of vegetation types that are arranged with a climatically determined north/south zonation. Grass-covered areas in the south give way to parkland and forested areas further north and eventually to shrub tundra in the extreme northeast.

In southern and west central Manitoba, agriculture, grazing, forestry and urban development have drastically altered the natural vegetation, but vast areas in the north and northeast are in near pristine state. Vegetation that often obscures the earth’s surface is clearly shown on air photos; particularly useful are colour infrared images that can detect stressed areas. Wetlands cover about 40 percent of Manitoba and do not conform to the climatically determined zonal distribution of vegetation. They occur in all parts of the province and provide distinctive ground cover well shown on air photos.

Individual animals are too small to appear on all except very large-scale images. However, some animals (e.g. beaver) profoundly affect drainage systems.

5.25: Ribbed Fen East of Warren Landing, North End of Lake Winnipeg

Ribbed fen with slightly elevated ridges of vegetation 1 at right angles to the direction of water movement occupies much of the centre of the photo. Ground water flowing to the west coalesces into drainage channels 2 that become Oscar Creek 3 that in turn drains into the upper reaches of the Nelson River (off the photo).

Figure 5.25: Ribbed Fen East of Warren Landing, North End of Lake Winnipeg

Figure 5.25

Vertical air photograph: A13398-184

Flight height: 16,700 feet a.s.l.; lens focal length: 151.65 mm

Scale: 1:32,000 (approx.)

Date: July 8, 1952

Location: Township 55; Range 3 WI

Map sheets: 1:250,000 63H Norway House

1:50,000 63H/12 and 63G/9 Warren Landing

	Rural Development Institute 270 18th Street Brandon, Manitoba, Canada R7A 6A9			Brandon University 270 18th Street Brandon, Manitoba, Canada R7A 6A9