The relationship between stem-form, stand-closure and site -conditions : the influence of environmental conditions on tree allometry and forest structure in west-central Alberta

Changes in the configuration of a tree stern result insignificant differences in its total volume and in the proportion of that volume that is merchantable timber. Tree allometry, as represented by stem-fo~, is the result of the vertical force of gravity and the horizontal force of wind. The effect of wind force is demonstrated in the relationship between stem-form, standclosure and site-conditions. An increase in wind force on the individual tree due to a decrease in stand density should produce a more tapered tree. The density of the stand is determined by the conditions that the trees are growing under. The ability of the tree to respond to increased wind force may also be a function of these conditions . This stem-form/stand-closure/site-conditions relationship was examined using a pre-existing database from westcentral Alberta. This database consisted of environmental, vegetation, soils and timber data covering a wide range of sites. There were 653 sample trees with 82 variables that formed the basis of the analysis. There were eight tree species consisting of Pinus contorta, Picea mariana, Picea engelmannii x glauca, Abies lasiocarpa, Larix laricina, Populus tremuloides, Betula papyrifera and Populus balsamifera plus a comprehensive all-species data set. As the actual conformation of the stern is very individual, stem-fo~was represented by the diameter at breast height to total height r~tio. The four stand-closure variables, crown closure, total basal area, total volume and total number of stems were reduced to total basal area and total number of stems utilizing a bivariate correlation matrix by species. Site-conditions were subdivided into macro, meso and micro variables and reduced in number 3 using cross-tabulations, bivariate correlation and principal components analysis as screening tools. The stem-fo~/stand-closure relationship was examined using bivariate correlation coefficients for stem-fo~ with total number of stems and stem-fo~ with total basal area. The stem-fo~/site-conditions and the stand-closure/site- conditions relationships were examined using multiple correlation coefficients. The stem-form/stand-closure/site-conditions relationship was examined using multiple correlation coefficients in separate analyses for both total number of stems and total basal area. An increase in stand-closure produced a decrease in stem-form for both total number of stems and total basal area for most species. There was a significant relationship between stem-form and site-conditions and between stand-closure and site-conditions for both total number of stems and total basal area for most species. There was a significant relationship between the stemform and site-conditions, including the stand-closure, for most species; total number of stems was involved independently of the site-conditions in the prediction of stem-form and total basal area was not. Larix laricina and Betula papyrifera were the exceptions to the trends observed with most species. The influence of both stand-closure (total number of stems in particular) and site-conditions (elevation in particular) suggest that forest management practices should include these- ecological parameters in determining appropriate restocking levels.

The investigation of edge effects within ragmented forest islands in Short Hills Provincial Park

It has been well documented, within the field of landscape ecology, that terrestrial fragmentation contributes to increased heterogeneity at the landscape level. It has also been observed that elevated areas of edge habitat occur within fragmented landscapes. Spatial and temporal edge effects were investigated in four areas designated as Nature Reserve Zones within Short Hills Provincial Park, near St. Catharines, Ontario. Random sampling along exposed edges was performed on trees and saplings, at 5 and 25 ill edge depths, using the point-centred quarter method. Diameter at breast height (dbh) and distance from point measurements were used to establish relative density, dominance, frequency and importance value. One-way analyses of variance were used on dbh measurements of tree species and Chi-Square contingency tables were used on size class distributions of saplings species to determine significant differences between 5 and 25 metres. Qualitative comparisons of importance values were also used to determine differences between 5 and 25 metres as well as between trees and saplings. These statistical and qualitative comparisons suggest that a significant overall spatial edge effect is currently exhibited by fragmented wooded islands within the park. The major species of the park, Acersaccharuln, may be exhibiting a temporal edge effect. The heterogeneous nature of the park may be of importance in understanding this area as a complex, ecological system. It is possible that the remaining forest tracts of the park have been affected, and continue to be affected by previous disturbances. Based on these findings, recommendations are made to the Ontario Ministry of Natural Resources concerning the management of Short Hills Provincial Park in accordance with their 1990 proposed Management Plan.

Gwladys Cunningham fonds, 1933-1934, 1940, 1942-1968, n.d.

Gwladys Cunningham was the Secretary-Treasurer of the Lincoln N.D.P. Ladies Group as well as involved in the CCF [Co-operative Commonwealth Federation] branch in Thorold. Additional Cunningham family members may also have been involved in the activities of the Thorold Branch. The Thorold branch of the Ontario division of The Co-operative Commonwealth Federation held its first meeting on June 15, 1933 at the home of Mark Kriluck. The branch became an official unit of the CCF when it was granted a charter in August of that same year. Officers elected at the annual meeting in October were W.G. Campbell, President, Jane Griffiths, Vice-President, James Logan Secretary and Mark Kriluck Treasurer. In 1960 the CCF voted to officially change their name to The New Democratic Party. The branch later became known as the Lincoln and Welland Riding Association of The New Democratic Party. Rare publications directly related to the CCF and the NDP remain with the fonds. Some publications were removed and placed in the general stack collection. See below for a list of books that were removed from the fonds and placed in the general collection.

Proceedings : Grand Lodge, A.F. & A.M. of Canada in the Province of Ontario - 1933

On spine : The Grand Lodge of Canada in the Province of Ontario.

Proceedings of the Grand Chapter of Royal Arch Masons of Canada at the annual convocation, 1933

Annual Convocation proceedings for the year 1933. The title varies slightly and convocation is held at different cities or towns in Canada. Seventy-fifth annual convocation.

Sloppy Joe's Bar, Season 1933

A drink manual for the establishment Sloppy Joe's Bar in Havana, Cuba. The manual is pocket size and contains 40 pages of drink recipes. The first few pages describe the bar in Havana, Cuba along with a brief biography of Jose Abeal (Sloppy Joe).

Ontario Forest Industries Association records, 1900-1989, n.d.

The Ontario Forest Industries Association (OFIA) was founded in 1944. It is a provincial trade association that represents member companies who produce a wide range of products, including pulp, paper, paperboard, lumber, panelboard, plywood and veneer. The OFIA works with its member companies to address issues of common interest and concern, and communicates these issues to the appropriate government, industrial or business sector. The Ontario Forest Information Service represented the OFIA from 1951 to 1988 as the publishers of their industry periodicals. Bush News was the first periodical published by the Service for the OFIA and ran until 1964, when it was replaced by Ontario Logger. In 1968, the name was changed to The Logger. In 1970, this was replaced by The Forest Scene. This new periodical was a departure from the earlier versions, which had served primarily as an internal communication system for the industry. The Forest Scene adopted a new format and editorial approach, emphasizing outdoor activities, recreation, hunting and fishing, conservation, and forestry operations and methods, thus appealing to a much wider readership. The Forest Scene ceased publication in 1988.

Letter to S.D. Woodruff from Fred Holmes

Letter to S.D. Woodruff from Fred Holmes regarding the work done on the east side of the rail track. He gives the measurement of work done by W. Robinson, May 18, 1860.

Letter to S.D. Woodruff from Fred Holmes

Letter to S.D. Woodruff from Fred Holmes noting how many days work were done by him, William Stoker and Thomas Secord, Aug. 27, 1860.

Letter to S.D. Woodruff from Fred Holmes stating that there are 4 bents in the Port Robinson Bridge over the Chippawa

Letter to S.D. Woodruff from Fred Holmes stating that there are 4 bents in the Port Robinson Bridge over the Chippawa. This is more than are shown in the plan, Oct. 5, 1857.

Chart of estimate #7 of work done by John Williams during the month of May. This is signed by Fred Holmes, May 29, 1856

Chart of estimate #7 of work done by John Williams during the month of May. This is signed by Fred Holmes, May 29, 1856.

Note regarding the number of days Fred Holmes was employed upon the Port Robinson and Thorold macadamized road during the months of July and August

Note regarding the number of days Fred Holmes was employed upon the Port Robinson and Thorold macadamized road during the months of July and August. This is signed by S.D. Woodruff and Fred Holmes, November, 1857.

Letter to S.D. Woodruff from Fred Holmes

Letter to S.D. Woodruff from Fred Holmes stating that Mr. Holmes has run the line through the centre of the lots in the 4th concession of Humberstone. He would like to know if the centre of the lots is to be the centre of the road or the side of the road, Jan. 27, 1855.

Letter to S.D. Woodruff from Fred Holmes

Letter to S.D. Woodruff from Fred Holmes stating that A. Cook and A. Mains have both requested an estimate of their work done, Feb. 23, 1855.

Letter to S.D. Woodruff from Fred Holmes

Letter to S.D. Woodruff from Fred Holmes stating that he has taken the measures and soundings from Lyons Creek Culvert, Aug. 1, 1855.