The field, work for this investigation was carried out
in the summer of 1952, during this time soil samples and field
notes were made. Further soil samples were secured in the summer
of 1953, The area in which the yellow pine communities were studied
was in the Okanagan, Similkameen, Nicola and South Thompson
valleys as well as the southern Cariboo in the vicinity of Clinton,
The soil samples were air-dried, weighed and the gravel
fraction ( particles greater than 2 mm. in diameter) separated by
sieve. The gravel fraction was weighed and the percentage determined
for each sample. The mechanical analysis was done by means of
the Bouyoueos hydrometer Method, following the removal of organic
matter by hydrogen peroxide, and carbonates by treatment with
hydrochloric acid. The results of the mechanical analysis were expressed
in terms of percentages, by weight, of sand, silt and clay
on the basis of the soil sample with the gravel removed.
Using the textural classification of the United States
Department of Agriculture the results were expressed In terms of
sandy loam, loam, etc. for each plant community. The ranges in
soil texture for each plant community are:
Agropyron association - sandy loam to clay loam with extremes
of sand and clay.
Stipa subassociation - sandy loam.
Artemisia subassociation - clay loam.
Purshia association – generally sand, occasionally sandy loam.
Aristida subassociation- sand to sandy loam.
Rhus association - loamy sand with high percentage of gravel.
Arctostaphylos association - sandy loam or loamy sand to sand.
Arctostaphylos - Calamagrostis association - sand to sandy
Calamagrostis association - sandy clay loam to sandy loam.
Symphoricarpos association - sandy loam and sandy clay loam. / Science, Faculty of / Botany, Department of / Zoology, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/41747 |
| Date | January 1955 |
| Creators | Ogilvie, Robert Townley |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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