Guide to the geology of Elk Island National Park: the origin of its hills and other scenery

Lang, A H

doi:10.4095/119895

Cited by 4 publications

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“…Elk Island National Park (EINP) is located on Hwy #16, 37 km east of the eastern limit of the city of Edmonton at 53°37'N, 112°53'W (Figure l) in the center of a physiographic region known as the Alberta Plain (Lang 1974), On the Alberta Plain are several hills, known as the Beaver Hills, that rise above the level of the surrounding landscape. The bedrock in this area is sedimentary, consisting of non-marine sandstones, siltstones, and mudstones (Emerson 1977).…”

Section: Study Areamentioning

confidence: 99%

“…The bedrock in this area is sedimentary, consisting of non-marine sandstones, siltstones, and mudstones (Emerson 1977). Surface materials are composed of glacial tills formed from a hummocky stagnant ice moraine (Lang 1974), giving the area a rugged topography characterized by knobs, kettles, till hummocks, and till ridges (Scace and Associates Ltd. 1976). Prairie mounds are a distinctive feature of the dead-ice moraine, and within the Beaver Hills, these mounds are circular with a basal diameter of about 91 m and a rim that rises 5 m above the surrounding land.…”

Section: Study Areamentioning

confidence: 99%

“…A thin layer of lacustrine material can usually be found in the center of prairie mounds (Emerson 1977). Glaciofluvial meltwater streams and glaciolacustrine sediments indicate that the Beaver Hills experienced a greater supply of surface water during de-glaciation than at present (Lang 1974, Crown 1977, Emerson 1977.…”

Section: Study Areamentioning

confidence: 99%

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The wetlands of Elk Island National Park: Vegetation classification, water chemistry, and hydrotopographic relationships

Nicholson

1995

Wetlands

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The wetlands of Elk Island National Park, located in central Alberta, are characterized by their vegetation and relationships between vegetation, surface water chemistry, and hydrotopographic parameters. Thirteen marsh, swamp, fen, and bog communities are described on the basis of TWlNSPAN and the Canadian Wetland Classification System. Species distribution in Elk Island is related to surface water cation gradients of corrected conductivity, pH, calcium, magnesium, and sodium. Hydrotopographic features such as water level, hummock height, elevation of the site, and the number of inlet and outlet streams are of secondary importance. Nutrient levels (nitrogen and phosphorus) in surface waters are less significant. Significant correlations were not obtained between vegetation and surface water nitrate levels or peat depth. Marshes, swamps, and moderate-rich fens at Elk Island are circumneutral in pH and rich in calcium, magnesium, and sodium. Poor fens and bogs are acidic, with lower amounts of mineral cations. The ionic gradient at Elk Island is related to fluctuating water tables and water source (ombrogenous vs. minerogenous). Hydrotopography influences the water chemistry. At Elk Island, marshes and swamps are low elevational wetlands and have the highest number of inlet and outlet streams; fens are found at intermediate elevations with fewer inlet and outlet streams; and bogs are found at the highest elevations with the fewest number of inlet and outlet streams.

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Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

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The wetlands of Elk Island National Park: Vegetation classification, water chemistry, and hydrotopographic relationships

Nicholson

1995

Wetlands

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“…Research was conducted in Riding Mountain National Park, Manitoba, Canada (Figure 1). The park occupies an area of 2,978 km 2 (1,148 mi 2 ) in western Canada, 225 km northwest from Winnipeg (50.6580uN, 99.9721uW) and consists of large areas of rolling upland (550 to 640 m [1,804 to 2,099 ft]) underlain by glacial tills (Lang 1974). The region is characterized by mean annual precipitation of 450 to 500 mm and a growing season of 168 to 173 d; mean temperatures range between 218 C (0 F) in January and 18 C (64 F) in July (Leeson et al 2005).…”

Section: Methodsmentioning

confidence: 99%

Landscape Disturbances Impact Affect the Distribution and Abundance of Exotic Grasses in Northern Fescue Prairies

Gifford¹,

Otfinowski²

2013

Invasive plant sci. manag.

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The presence of landscape disturbances increases the establishment of exotic plants inside natural areas. Here, we examine the effect of human disturbances to prairie landscapes on the distribution and abundance of Kentucky bluegrass and smooth brome, exotic grasses that threaten the integrity of prairie ecosystems throughout the northern Great Plains. Using plant inventory data from Riding Mountain National Park in Manitoba, Canada, we investigated how roads, trails, and the intensity of historic livestock grazing affect the distribution and abundance of exotic grasses. On the basis of our results, both Kentucky bluegrass and smooth brome were more abundant in areas closer to roads. Kentucky bluegrass was also more abundant in areas farther from trails and those historically grazed by cattle. Our research demonstrates that the effect of landscape disturbances on exotic grasses varies between species and suggests that patterns of invasion may reflect different introduction histories. Given our findings, conserving the integrity of northern fescue prairies should account for human disturbances of landscapes and their effects on the proliferation of exotic plants into areas of native prairie.

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Wetland development at Elk Island National Park, Alberta, Canada

Nicholson

Vitt

1994

J Paleolimnol

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Guide to the geology of Elk Island National Park: the origin of its hills and other scenery

Cited by 4 publications

References 0 publications

The wetlands of Elk Island National Park: Vegetation classification, water chemistry, and hydrotopographic relationships

The wetlands of Elk Island National Park: Vegetation classification, water chemistry, and hydrotopographic relationships

Landscape Disturbances Impact Affect the Distribution and Abundance of Exotic Grasses in Northern Fescue Prairies

Wetland development at Elk Island National Park, Alberta, Canada

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