Improving Wetlands for Forestry in Canada PDF Download

Author: G. R. Hillman
Publisher: Northern Forestry Centre
ISBN:
Category : Forest drainage
Languages : en
Pages : 40

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Book Description

Author: Graham Robin Hillman
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 34

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Book Description

Author: Carl C. Trettin
Publisher: Routledge
ISBN: 1351427903
Category : Science
Languages : en
Pages : 514

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Book Description
Forested wetlands are a major component of northern landscapes, important both for their ecological functions and their socioeconomic values. Historically, these lands have been used for timber and fiber products, hunting, fishing, trapping, food gathering, and recreation. There are many questions about the use and management of these lands in the future, particularly with respect to forest products, hydrology and water quality, plant and wildlife ecology, landscape dynamics, and wetland restoration. Northern Forested Wetlands: Ecology and Management provides a synthesis of current research and literature. It examines the status, distribution, and use of these wetland resources. The book focuses on understanding the role of wetlands in the landscape and on how to manage these wetlands and sustain their important functions. This is a primary reference text for the study and management of northern forested wetlands, providing a forum for information discovered by researchers and managers from many nations.

Author: Graham Robin Hillman
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 76

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Book Description
"In 1985, a wetland drainage and improvement for forestry program was instituted under the Canada-Alberta Forest Resource Development Agreement to determine the effects of drainage on tree growth, ground vegetation, soils, peat, and local hydrology. Three experimental areas were chosen and portions of each drained in 1986 and 1987. Data were collected from drained and undrained portions. Additional data were collected from a treed swamp near Fort McMurray that was subjected to different drainage treatments between 1975 and 1980. The intent, in this case, was to obtain an interim estimate of tree growth rates until sufficient time has elapsed to obtain estimates from permanent sample plots on the experimental areas. Results showed that the average depth to groundwater table after drainage was between 37 and 90 cm and varied with ditch spacing. The corresponding drops in water table levels were between 17 and 78 cm. The test areas with 30-m ditch spacings appeared to be overdrained. Stream water quality data from one site only have been interpreted so far. They show that drainage had little effect on measured physical and chemical stream water quality during low flows. Further analyses are required to determine the effects of drainage on peak flows. Initial results from the three experimental areas indicate that drainage has resulted in reduced ground vegetation cover (mosses, sedges and other herbs) and vigor. Lowering the water table on the swamp near Fort McMurray resulted in sigificant increases in height, diameter and volume of 30-year-old black spruce (Picea mariana). The increase in growth of black spruce was accompanied by an equally impressive growth of alder (Alnus crispa), willow (Salix spp.), birch (Betula pumila), aspen (Populus tremuloides) and balsam poplar (E. balsamifera)."--Page iii.

Author: Joan Voller
Publisher: UBC Press
ISBN: 0774842512
Category : Nature
Languages : en
Pages : 261

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Book Description
This book is intended to provide information to those who wish to interact with the landbase in an ecologically sustainable manner. Practitioners charged with the administration of land-based programs in industry and government will find the information presented useful. It should also be a resource for many community groups involved in land-use decision-making. Humans continue to use forests and make decisions about land use without perfect information. Conservation Biology Principles for Forested Landscapes is intended to enable the improvement of planning and decison-making processes by providing ecological information on issues of forest use. Current approaches are not working. Where information exists on new, ecologically sustainable approaches, practitioners should switch. Where the information on a better approach is not yet available, practitioners should replace the current, inappropriate approach with a variety of flexible ones that offer the opportunity to change with new knowledge.

Author: Dennis F. Whigham
Publisher: Springer Science & Business Media
ISBN: 9401582122
Category : Science
Languages : en
Pages : 786

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Book Description
The impetus for this volume was the 2nd International Wetlands Conference which was held in June, 1984 at Trebon, Czechoslovakia. An overview of the worlds wetlands was one of the themes of the conference and it was decided that a useful follow-up would be a publication on the same topic. The initial goal was to cover as many of the worlds wetlands as possible in one volume and to have an emphasis on wetland ecology, biota, classification, and management. Individuals who made presentations at the Trebon confer ence were asked to prepare chapters and the editors also solicited other contributions. For a variety of reasons, the initial goal has been difficult to reach, especially coverage of the entire globe, and it has been necessary to publish the contributions in more than one volume. Volume 1 represents the com pletion of the first phase of the project and it covers most of the Western Hemisphere, Australia, most of Africa, the Indian subcontinent, the Mediter ranean region, and Papua New Guinea. Volume 2 will contain chapters on Western Europe, Northern Europe, Central Europe, most of northern and It is our hope that Volume western Asia, the Middle East, and Indonesia. 2 will appear in the near future and, if possible, a third volume will be published if authors can be secured to cover areas such as the Far East, other parts of the Indo-Pacific region, and New Zealand.

Author: Devendra Amatya
Publisher: CABI
ISBN: 1780646607
Category : Technology & Engineering
Languages : en
Pages : 309

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Book Description
Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.

Author: Eero Paavilainen
Publisher: Springer Science & Business Media
ISBN: 3662031256
Category : Technology & Engineering
Languages : en
Pages : 256

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Book Description
The book provides a review and synthesis of boreal mire ecosystems including peat soil properties, mire hydrology, carbon and nutrient cycling, and classification of mire sites. The emphasis, however, is on peatland forests as a renewable natural resource. The approach originated in northern Europe, because there, especially in Finland, operational scale forest drainage has a long tradition based on research aiming to maintain and increase wood production on peatlands. Whenever relevant, a closer look is also given to other countries in Europe, Canada, and the USA. The results of recent studies on different environmental effects of peatland forestry are also discussed in detail.

Author: Graham K. Bryan
Publisher: Environment Canada
ISBN:
Category : Restoration ecology
Languages : en
Pages : 12

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Book Description

Author: Geoffrey A.J. Scott
Publisher: McGill-Queen's Press - MQUP
ISBN: 0773565094
Category : Science
Languages : en
Pages : 404

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Book Description
Canada's Vegetation includes comprehensive sections on tundra, forest-tundra, boreal forest and mixed forest transition, prairie (steppe), Cordilleran environments in western North America, temperate deciduous forests, and wetlands. An overview of each ecosystem is provided, and equivalent vegetation types throughout the world are reviewed and compared with those in Canada. The integration of data on climate, soil, and vegetation in a single volume makes this an invaluable reference tool. Canada's Vegetation is sure to become a standard textbook for those in the environmental sciences.