SOILS WITH PLACIC HORIZONS ON THE WEST COAST OF VANCOUVER ISLAND, BRITISH COLUMBIA

1971 ◽  
Vol 51 (3) ◽  
pp. 439-448 ◽  
Author(s):  
L. M. LAVKULICH ◽  
S. BHOOJEDHUR ◽  
C. A. ROWLES

Thin indurated horizons (placic) were found in coarse textured deposits in the humid west coastal region of Vancouver Island in British Columbia. Four soils representing the range of pan development were studied. The soils were classified as Placic Ferro-Humic, Mini Humo-Ferric, Placic Humo-Ferric, and Gleyed Placic Mini Ferro-Humic Podzols. The soils supported a rather luxuriant vegetative association, with one site exhibiting a bog type of vegetative cover. It was found that the indurated horizons were of two types, namely, those that had high amounts of Fe and those that seemed to concentrate Al. The role of organic matter in the formation of placic horizons is still obscure, although organic matter concentrations were largest in indurated horizons of high aluminum content. The kind of pan should be considered in classifying these soils, as existing criteria do not distinguish between different kinds of pans. In addition, the relatively large amounts of oxalate-extractable Fe and Al to depths up to 300 cm require further study.

1963 ◽  
Vol 20 (4) ◽  
pp. 939-967 ◽  
Author(s):  
Robert K. Lane

Oceanographic data collected in a line of stations extending seaward of the west coast of Vancouver Island, British Columbia, were reviewed and analyzed. On the basis of these data and the large-scale meteorological processes of wind, insolation, and precipitation, the characteristic structure of temperature and salinity in the coastal region was denned in five temporal stages throughout the year. These stages are presented as vertical sections along the line with characteristic ranges of values to be found in each of the structural elements.


1996 ◽  
Vol 11 (4) ◽  
pp. 922-927 ◽  
Author(s):  
G. A. Pozarnsky ◽  
A. V. McCormick

Using a prehydrolysis technique, transparent gels with very high aluminum content can be achieved with the use of isopropanol. Here 13C, 27Al, 29Si and 17O NMR at various stages of preparation show that when the aluminum added exceeds the number that silanols can fully protect, the excess aluminum alkoxide groups readily undergo transesterification with isopropanol. The aluminum isopropoxide (Al–OPri) groups thus formed are shown to be sufficiently stable that attack by water is impeded, thus allowing the remaining silicon alkoxide groups to hydrolyze and condense to form a homogeneous gel.


1987 ◽  
Vol 67 (4) ◽  
pp. 795-810 ◽  
Author(s):  
G. A. SINGLETON ◽  
L. M. LAVKULICH

A soil chronosequence near Cox Bay, on the west coast of Vancouver Island, British Columbia was investigated. Soils in the sequence have developed on sandy beach deposits, which are advancing toward the ocean at a rate of 0.26 m per year. Dendrochronology and geomorphology established surface ages ranging from 127 to 550 yr for seven selected pedons across these deposits. With soil age, there was progressive deepening and differentiation of genetic horizons, resulting in soil classification that ranged from an Orthic Dystric Brunisol at the youngest site (site 1) to an Orthic Humo Ferric Podzol at the oldest site (site 7). Organic matter increased from a maximum value for mineral horizons of 1.1% in the Bm of site 1 to 4.7% in the Ae of site 7. Oxalate-extractable Al in the uppermost B horizons of the soils increased from 0.12% at site 1 to 0.30% at site 6. Available Mg and K from the lowermost horizons sampled decreased from 35 and 25 mg kg−1 to 4 and 5 mg kg−1, respectively, when moving from sites 1 to 6. Accumulations of organic matter, Fe and Al, and losses of available Mg were plotted against soil age and yielded chronofunctions with exponential solutions. Key words: Soil chronosequence, soil genesis, Podzol development, chronofunctions


2013 ◽  
Vol 66 (3) ◽  
Author(s):  
Rebeca Fernández Rodríguez

AbstractNootka is an historical fur-trading centre in Yuquot, on the west coast of Vancouver Island, British Columbia, Canada. In 1788, the Spanish king Charles III sent an expedition to Nootka commanded by Ignacio Arteaga (1731-1783). A year later, Spain established a military post, San Lorenzo de Nutka, at Yuquot in 1789 which existed until 1795. The missionaries who arrived with the sailors were urged to learn the vernacular languages in order to evangelize. In chapter 5 of the


1966 ◽  
Vol 44 (5) ◽  
pp. 839-849 ◽  
Author(s):  
C. Berkeley

Twenty-five species of Polychaeta recently collected off the coast of British Columbia are discussed. Most were taken in waters of considerable depth off the west coast of Vancouver Island. Sixteen are new to British Columbia. Most of these are known from farther south on the west coast of North America, but some from much shallower depths than those from which they are now recorded; two of them are new to the northeast Pacific; one is a new subspecies. The other nine have been previously known from British Columbia, but they are now recorded from much greater depths than hitherto, or in new geographical locations.


2018 ◽  
Vol 34 (2) ◽  
pp. 143-158 ◽  
Author(s):  
Chloe Humphreys ◽  
Sean Blenkinsop

AbstractThis article uses an unconventional format to explore the role of parent and nature and the development of a young child's ecological identity. It follows journal entries from a mother observing her young son, Julian, as he explores, interacts with, and learns from the Stawamus River on the west coast of British Columbia. By creating questions, discussing and analysing these written observations, we explore the role of parenting and nature and the implications this might have for environmental education. Some of the ideas explored in this article include early ecological identity, empathy, relational existence, experiential learning, and affordances in the natural world. We further suggest that nature and parent working together might become key educators for a child.


1982 ◽  
Vol 39 (5) ◽  
pp. 736-747 ◽  
Author(s):  
Richard J. Beamish

Lampetra macrostoma n.sp., a freshwater parasitic lamprey, is distinguished from related species L. tridentata, L. lethophaga, L. folletti, L. minima, and L. similis by its parasitic habit and very large disc. Other characters distinguishing the species from L. tridentata are its longer prebranchial length, large eye, weakly pigmented velar tentacles, and its ability to remain in freshwater. The recently metamorphosed form readily survives in freshwater and probably is non-anadromous even though it can survive in salt water. The new species has been discovered in two lakes on Vancouver Island, British Columbia, Canada, where it attacks large numbers of resident salmonids. Because of its ability to survive and feed in freshwater, it poses a definite threat to freshwater fishes.Key words: lamprey, new species, non-anadromous lamprey, salmonid parasitism


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