Northwest Science and Information (NWSI) publications offer the most current science on forests, fish, and wildlife to resource managers in northwestern Ontario.
These technical reports are available in PDF format. Single copies are available from our Science Unit in Thunder Bay at no charge. These reports are published in English only.
Natural Regeneration in Boreal Mixedwood Forests. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 1. 19 pp.
This report describes common features of, and key conditions for, natural growth boreal mixedwood forest in Ontario. A case study for the Tyrol Lake forest (cut in the late 1940s) is given.
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Commercial Thinning of Jack Pine. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 2. 19 pp.
This report explains the use of thinning for managing jack pine in northern Ontario. It gives case studies of the Balmer and Seine River forests. These were planted in the 1940s and thinned during the 1990s.
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Establishment of Red and White Pine Plantations in Northwestern Ontario. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 3. 19 pp.
This article describes the standard techniques used to set up red and white pine plantations in northwestern Ontario. A case study for the Tyrol Lake forest (planted in 1950) is given.
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Shelterwood Systems in Red Pine. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 4. 19 pp.
This document reviews the conditions required to use a shelterwood harvest system for the renewal of red pine. A case study for the Seine River forest in Ontario (shelterwood cut in 1988) is given.
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The Establishment of Black and White Spruce on Ontario’s Boreal Mixedwood Sites. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 5. 19 pp.
This paper reviews the factors that are important for white and black spruce growth on boreal mixedwood sites. A case study for the Seine River Forest is given. The trial was cut in the 1950s and ‘60s and planted and treated through the 1970s and ‘80s.
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Early Stand Tending in Jack Pine Plantations. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 6. 19 pp.
This paper gives guidelines for improving the early growth of young planted jack pine forests through various tending activities. There is also discussion about the pros and cons of each technique. It provides case studies of early stand jack pine tending for the Balmer, Tyrol Lake, and Seine River forests in Ontario.
Download (PDF - 460kb)
Clearcutting and Its Alternatives for Upland Black Spruce. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 7. 19 pp.
This report discusses various harvesting methods and their effect on the natural growth of upland black spruce. It presents a case study for the Leo Vidlak Forest near Raith, Ontario.
Download (PDF - 482kb)
Spot Seeding of Jack Pine and Black Spruce. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 8. 19 pp.
This paper reviews the success of spot seeding (with and without shelters) in the creation of jack pine and black spruce forests. It presents a case study for the Balmer Forest (cut in 1992) in northern Ontario.
Download (PDF - 392kb)
The Use of Fire for Natural Jack Pine Regeneration on Cutovers. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 9. 19 pp.
This report reviews the use of fire to achieve natural jack pine growth on cut sites as well as the main factors promoting good growth. It gives a case study for the Tyrol Lake Forest north of Nipigon, Ontario.
Download (PDF - 630kb)
Mixed Planting of Jack Pine, Black, and White Spruce. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 10. 19 pp.
This paper reviews differences in the growth habits and conditions of jack pine, black spruce, and white spruce. It discusses the potential for mixed planting of the three species. It gives a case study for the Tyrol Lake Forest north of Nipigon, Ontario.
Download (PDF - 632kb)
Pre-Commercial Thinning in Black Spruce. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 11. 19 pp.
This paper reports on the potential for pre-commercial thinning of black spruce and discusses the pros and cons of it. It gives a case study for the Tyrol Lake Forest north of Nipigon, Ontario.
Download (PDF - 537kb)
A Comparison of Red Pine Sawlog Management and Jack Pine Pulpwood Management. OMNR. 1997. Ont. Min. Natur. Resour., Northwest Sci. and Technol., Thunder Bay, Ont. Demonstration For. Tech. Rep. 12. 19 pp.
This paper compares the management of red pine for sawlogs to the management of jack pine for pulpwood. It reviews the suitability of these techniques to each species. It gives a case study for the Tyrol Lake Forest north of Nipigon, Ontario.
Download (PDF - 466kb)
Single copies are available from:
Ministry of Natural Resources
Northwest Science & Information
RR 1, 25th Side Road
Thunder Bay, Ontario, Canada
P7C 4T9
Telephone: (807) 939-2501
Facsimile: (807) 939-1841
Bulk orders may involve shipping charges.
Northwest Science & Information was formerly known as Northwest Science & Technology, Boreal Science Section.
Les documents offerts, de nature technique et à distribution est limitée, ne sont disponibles qu’en anglais en vertu du règlement 411/97, en application de la Loi sur les services en français. Cependant nous invitons nos lecteurs francophones désireux d’obtenir de plus amples renseignements, à s’adresser au bureau du MRN le plus proche ou à composer le 1-800-667-1840.
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