44 resultados para Land degradation

em Brock University, Canada


Relevância:

20.00% 20.00%

Publicador:

Resumo:

This map shows the entire campus master plan and details what each area of land would be used for.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Studies on persistence and degradation of the synthetic pyrethroid insecticides, permethrin and fenvalerate, were carried out under natural environmental conditions of the Niagara Peninsula. Permethrin and fenvalerate were treated on apple foliage atrat~s of 0.21 kg(AI)!ha and 0.14 kg(AI)/ha, respectively. The initial cis- and trans-permethrin spray deposits were found to be 13.5 ppm and 19.2 ppm, respectively and 38.0 ppm was observed for the fenvalerate treated sample. Twenty-three days and 84 days after spray application, permethrin residues were 4.0 ppm and 2.7 ppm for the cis-isomer, whereas they were 7.9 ppm and 4.7 ppm for the trans-isomer, respectively. Residues of fenvalerate 23 days and 84 days after spray application were 13.4 ppm and 8.0 ppm, respectively. The values of observed half-life of cis-permethrin, trans-permethrin and fenvalerate were found to be 42 days, 46 days and 51 days, respectively. Studies were extended to quantitatively determine some of the major degradation compounds of permethrin and fenvalerate, which were expected to be produced as results of ester cleavage of the parent compounds. A permethrin treated sample, 84 days after initial spray application, showed 0.25 and 0.8 ppm of cis- and trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid (C12CA (18), respectively. These two acids were not found as free acids, but found as conjugated compounds. The other expected degradation compounds, 3-phenoxybenzyl alcohol (PBalc (~)),3-phenoxybenz.aldehyde (PBald (38)) and 2- (4-chlorophenyl) isovaleric acid (CPIA (31)) were not detected by the methods employed in this study. The results indicate that these degradation compounds were not present, or, if they were present, their concentrations were too low to detect by the methods used.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A simple method was developed for treating corn seeds with oxamyl. It involved soaking the seeds to ensure oxamyl uptake, centrifugation to draw off excess solution, and drying under a stream of air to prevent the formation of fungus. The seeds were found to have an even distribution of oxamyl. Seeds remained fungus-free even 12 months after treatment. The highest nonphytotoxic treatment level was obtained by using a 4.00 mg/mL oxamyl solution. Extraction methods for the determination of oxamyl (methyl-N'N'-dimethyl-N-[(methylcarbamoyl)oxy]-l-thiooxamimidate), its oxime (methyl-N',N'-dimethyl-N-hydroxy-1-thiooxamimidate), and DMCF (N,N-dimethyl-1-cyanoformanade) in seed" root, and soil were developed. Seeds were processed by homogenizing, then shaking in methanol. Significantly more oxamyl was extracted from hydrated seeds as opposed to dry seeds. Soils were extracted by tumbling in methanol; recoveries range~ from 86 - 87% for oxamyl. Root was extracted to 93% efficiency for oxamyl by homogenizing the tissue in methanol. NucharAttaclay column cleanup afforded suitable extracts for analysis by RP-HPLC on a C18 column and UV detection at 254 nm. In the degradation study, oxamyl was found to dissipate from the seed down into the soil. It was also detected in the root. Oxime was detected in both the seed and soil, but not in the root. DMCF was detected in small amounts only in the seed.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Eleanor Ostrander, daughter of John Clark, and wife of Jacob Ostrander, petitioned for land on March 28, 1797. In her petition she describes herself as the daughter of a loyalist, John Clark, someone who served in “His Majesty’s Service” and that she came into the Province in 1788. Upon this information, Eleanor was granted 200 acres of land in Thorold Township, comprising of lots 115 and 169. Eleanor Clark (b. 1777) and Jacob Ostrander were married 5 October 1794 in St. Mark’s Church, Niagara-on-the-Lake, Ont.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This arts-based thesis, written from my perspective as a Manitoba Mennonite woman and English Language Arts educator, is a memoir of books and reading. As a voracious reader, I am dismayed by the general perception of literacy in public schools as being a set of measureable tasks, and I have found that reading, in particular, has become divorced from its traditional link to life-giving and sacred things. In this thesis, I used life writing to share some of my reading history to illustrate, in part, the degree to which books may enrich our lives by helping us understand the past, present, and future - but only if we allow them to do so.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Survey map and description of Robert Brown's land created by The Welland Canal Company. Included is a two page written description of the land along with a drawing of the land. Noteable features include; line between Grantham and Louth townships, bed of the 12 mile creek. Surveyor notes are seen in pencil on the map, including notes about the deed to the land.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Survey map and description of the land belonging to the Welland Canal Company at Dunnville. Created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. There are two seperate surveys done for the lands: Survey #1 (Pp. 148-149) noteable features include; the Grand River, the original boundry of the Grand River, marsh overflow, marsh, feeder river, bridge, Broad street, Lock street, Main street, embankment, dam (600 ft.), lines between lots, reserve for the ships yard, reserve for lock and dry dock, lands occupied by the canal and towpath to guard gate. The land totals 9 acres, and 3 roads, including the street. Survey #2 (Pp. 150-151) completed by George Keefer noteable features include; embankment, marsh overflow, original channel of the Grand River, salt spring, bridges, wier, proposed waste wier, Van Riper's home, proposed bridge, sulphur spring, road, Sulphur Creek, division between lots 12-17. The land totals 27 acres, and 2 perches. Surveyors notes can be seen in pencil and red ink on the survey.See also Pp. 148-151

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Survey map of the lands of the Welland Canal Company in Thorold. Created by The Welland Canal Company. Noteable features include; Company's land, reservoir, channel of canal, bridge, Pine street, Mullen street, lot divisions. The plan is titled "Plan of Lands belonging to the Welland Canal Company being the West half of lot no. 29 and the East half of lot no.30 in the township of Thorold, adjoining Marlats Reservoir laid out in town lots, November 24th, 1834". Surveyor notes are seen in pencil on the map.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

An indenture of land sold from Daniel Robins of Thorold to George Hansil of Pelham for Lot 32 (100 acres) in the 5th Concession of the Township of Wainfleet.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This is a land grant for Eleanor Ostrander for 200 acres, Lots 115 and 169, in the Township of Thorold, County of Lincoln, District of Niagara.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A land deed for a parcel of land in the district of Niagara purchased by Daniel Cline and his wife Jamima for the sum of two hundred pounds. The land purchased involved lot numbers 5 and 6 in the 2nd concession in the Township of Humberstone, County of Lincoln, District of Niagara. The land was sold by Cornelius Benner and the deed is dated January 17, 1839.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Consists of a petition by residents of the Township of Crowland, and a letter addressed to the Hon. Commissioner of Crown Lands. Both items concern a dispute of a land survey. The petition is dated May 26, 1854, and is by inhabitants of the fourth concession in the Township of Crowland. The petition is signed by 9 residents. The names include James Cook (?), Samuel Buchner, James Rock (?), Wm. Vanalstine (?), Seth Skinner, Daniel Holcomb, P. Skinner (?), Henry Buchner, and Cornelius McHay (?). The letter is dated July 20, 1855 and is addressed to the Hon. Commissioner of Crown Lands, Quebec. It is signed by Arthur Johnston, Town Reeve, Bertie.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Rural communities are currently undergoing rapid restructuring as globalization impacts the future viability of many small towns. Agricultural regions throughout Canada, in particular, Niagara-on-the-Lake, are forced to adapt to changes within the industry. In addition to these challenges, sprawling residential developments from nearby urban centres are changing the dynamic of this town, resulting in conflicts between the residential and agricultural land uses. This thesis explores these conflicts from the perspective of the residents and the farmers. It was found that the initial sources of conflict related to noise-generating farm activities are no longer a concern, while the use of pesticide have become a source of contention among the residents. The farmers, alternately, were found to be proactive and strived to limit the potential for conflict with adjacent residents. Lastly, it was determined that planning legislation aggravates land use conflicts within Niagara-on-the-Lake and need to better address these land use conflicts.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Robert Campbell was the son of Robert Campbell and Jannette Miller, born about 1836 in Pelham North Township. He married Elizabeth Ann Ingram on Saturday, September 7, 1878 in Pelham Township, and they had 2 sons: Robert Carson Campbell and George D. Campbell. He died on February 27, 1908 in Malahide Township, Norfolk County, Ontario.