The Climate, Native Vegetation, and Soils of Some Grasslands at Different Elevations in British Columbia

Ryswyk, A. L. van; McLean, A.; Marchand, Lilian

doi:10.4141/cjps66-005

Cited by 48 publications

(42 citation statements)

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“…Based on the predominant A horizon colours, the Carmacks and Kluane pedons are Dark Brown Chernozems, and the Stikine pedon is a Brown Chernozem. Ah horizon organic C concentrations are within the range reported for Brown and Dark Brown Chernozems in the central (Valentine et al 1987) and southern interior (Van Ryswyk et al 1966;Fenger 1982) of British Columbia. For the Carmacks pedon, the Ah1 horizon organic C concentration is comparable with those of grassland A horizons elsewhere in the Carmacks area (Strickland et al 2005).…”

Section: Discussionsupporting

confidence: 52%

Topographically controlled grassland soils in the Boreal Cordillera ecozone, northwestern Canada

Sanborn¹

2010

Can. J. Soil. Sci.

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Properties and ecological relationships of grassland soils were examined at three widely separated sites (Stikine River Valley, British Columbia, and Carmacks and Kluane Lake, Yukon) in the Boreal Cordillera ecozone of northwestern Canada. At these latitudes (58 to 62°N), grasslands are largely restricted to south-facing aspects, and usually occur as islands within the boreal forest. The grayish and yellowish brown, base-rich, Ah horizons had a thickness-weighted mean organic carbon concentration of 19.5 g kg-1. Ah horizons exhibited a range of microstructures similar to that documented in grassland soils in the southern Cordillera and Great Plains, ranging from spongy to massive in the young loess-derived Kluane Lake pedon to well-developed crumb microstructure in the finer-textured Stikine pedon. These pedons met the morphological and chemical criteria, and likely the soil climate requirements, for the Dark Brown and Brown great groups of the Chernozemic order of the Canadian System of Soil Classification (3rd ed.). Key words: Grassland, Boreal Cordillera, Chernozem, soil micromorphology, soil genesis, soil classification

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Section: Discussionsupporting

confidence: 52%

Topographically controlled grassland soils in the Boreal Cordillera ecozone, northwestern Canada

Sanborn¹

2010

Can. J. Soil. Sci.

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“…over a distance of approximately 10 km. Elevation influences precipitation, ranging from 250 mm/year at lower elevations to 350 mm/year at upper elevations, which has established a gradient of plant productivity (van Ryswyk et al 1966 Grasslands in LDB park are grazed by cattle from April to November on a rest and rotation schedule at an Animal Unit Measurement of approximately one cow per hectare. Pastures grazed in the spring one year have been rested the second year, grazed in the fall the third year, and rested the fourth year on an ongoing cycle over the past four decades.…”

Section: Study Areamentioning

confidence: 99%

Effects of Cattle on the Abundance and Composition of Carabid Beetles in Temperate Grasslands

Bassett

Fraser

2014

JAS

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Grasslands are of vital importance to the ranching industry. Cattle grazing can alter the structure and composition of the plant community, and may indirectly affect insect communities. We investigated the effects of cattle grazing and site productivity on carabid beetle abundance, dried weight (biomass), species richness and diversity. We used pitfall traps to capture beetles in three sessions in 2008 in Lac Du Bois Provincial Park, British Columbia (B.C.), Canada. To test for main and interacting effects of elevation and grazing, carabid beetles were quantified by trap for abundance, dried weight (biomass), species richness and Shannon's diversity. We found that elevation (a proxy of site productivity) was the most important predictor of carabid parameters, with lower elevation (low site productivity) having lower abundance, biomass, species richness and diversity compared to upper elevation (high site productivity). Although there was no main effect caused by grazing, there was a reduction in carabid biomass and diversity at grazed upper elevation sites compared to ungrazed upper elevation sites, suggesting that site productivity and plant structure affects carabid communities. Cattle management of natural grasslands benefits by considering biodiversity of all biota, including invertebrates. Carabid species diversity can be maximized by restricting grazing at high site productivity where plant biomass and litter is high.

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“…The gradient of moisture effectiveness found across elevations also has an effect on a number of soil physical and chemical properties. Some differences in soil properties with increasing elevation include increased cation exchange capacity (CEC), increased potassium (K), calcium (Ca), and magnesium (Mg), increased organic carbon, decreased C/N ratios, and decreased soil bulk density (Van Ryswyk et al 1966).…”

Section: Physiography Climate and Soilsmentioning

confidence: 99%

“…Other common species include P. Secunda, E. nauseosa, A. frigida (Meidinger and Pojar 1991). Van Ryswyk et al (1966) described these changes in vegetation zones as abrupt, and found that they were related to sharp differences in the ratio of precipitation to temperature.…”

Section: Ecologymentioning

confidence: 99%

Nitrogen inputs by biological soil crusts in grasslands of interior British Columbia.

Caputa¹

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The Climate, Native Vegetation, and Soils of Some Grasslands at Different Elevations in British Columbia

Cited by 48 publications

References 0 publications

Topographically controlled grassland soils in the Boreal Cordillera ecozone, northwestern Canada

Topographically controlled grassland soils in the Boreal Cordillera ecozone, northwestern Canada

Effects of Cattle on the Abundance and Composition of Carabid Beetles in Temperate Grasslands

Nitrogen inputs by biological soil crusts in grasslands of interior British Columbia.

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