Small Openings in Trembling Aspen Forest PDF Download
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Author: Arthur Groot
Publisher: Sault Ste. Marie, Ont. : Great Lakes Forestry Centre
ISBN:
Category : Business & Economics
Languages : en
Pages : 36
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Book Description
Describes a study of a 40-year-old trembling aspen stand to examine how microclimate influences the regeneration of white spruce and trembling aspen. In the study, openings of various sizes were created in the stand and measurements were made of microclimatological parameters and tree growth parameters. Results presented include solar radiation, soil and air temperature, humidity, and soil moisture in the various types of openings; seedling-water relationships; first- and second-year establishment ratios; effectiveness of vegetation control treatments; daytime patterns in stomatal conductance and transpiration; height and diameter growth; leaf area index; and differences in height between trees with pruned and unpruned roots.
Author: Arthur Groot
Publisher: Sault Ste. Marie, Ont. : Great Lakes Forestry Centre
ISBN:
Category : Business & Economics
Languages : en
Pages : 36
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Book Description
Describes a study of a 40-year-old trembling aspen stand to examine how microclimate influences the regeneration of white spruce and trembling aspen. In the study, openings of various sizes were created in the stand and measurements were made of microclimatological parameters and tree growth parameters. Results presented include solar radiation, soil and air temperature, humidity, and soil moisture in the various types of openings; seedling-water relationships; first- and second-year establishment ratios; effectiveness of vegetation control treatments; daytime patterns in stomatal conductance and transpiration; height and diameter growth; leaf area index; and differences in height between trees with pruned and unpruned roots.
Author: Malcolm F. Squires
Publisher: Dundurn
ISBN: 1459739345
Category : Political Science
Languages : en
Pages : 171
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Book Description
Nearing the end of a lifetime in the boreal forest, a retired forester writes a passionate plea for rational, science-based forest management. The boreal forest is constantly changing, often dramatically. We like to picture it as a stable, balanced system. Really, it is anything but stable. The boreal forest is dynamic. For over sixty years, forester Malcolm F. Squires has seen mature forests within protected areas devastated by insects, moose, wind, and wildfire. While the forests often return from this destruction, they are never quite the same. A naturally balanced boreal forest is a human notion that does not match the reality of nature. If we don’t soon recognize and accept that reality and stop making irrational demands that a forest be “protected” from change or human management, we may be dooming them to disaster.
Author: F.J. Bigras
Publisher: Springer Science & Business Media
ISBN: 9401596506
Category : Science
Languages : en
Pages : 593
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Book Description
Conifer Cold Hardiness provides an up-to-date synthesis by leading scientists in the study of the major physiological and environmental factors regulating cold hardiness of conifer tree species. This state-of-the-art reference comprehensively explains current understanding of conifer cold hardiness ranging from the gene to the globe and from the highly applied to the very basic. Topics addressed encompass cold hardiness from the perspectives of ecology, ecophysiology, acclimation and deacclimation, seedling production and reforestation, the impacts of biotic and abiotic factors, and methods for studying and analyzing cold hardiness. The content is relevant to geneticists, ecologists, stress physiologists, environmental and global change scientists, pathologists, advanced nursery and silvicultural practitioners, and graduate students involved in plant biology, plant physiology, horticulture and forestry with an interest in cold hardiness.
Author: F. H. Tainter
Publisher: John Wiley & Sons
ISBN: 9780471129523
Category : Science
Languages : en
Pages : 828
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Book Description
This book focuses on the practical aspects of forest diseases and on practical measures to minimize damage and loss. Forest Pathology is a reference book that deals with the study of the problems and damage to forests due to: plant diseases, insects, fire, weather, and animals. It is both a forestry book and a plant pathology book. The first section deals with general topics and principles, including both abiotic causes and biotic causes such as fungi, bacteria, mycoplasms, and viruses. The second section presents the details of particular forest diseases and offers practical management suggestions.
Author: Gordon Bonan
Publisher: Cambridge University Press
ISBN: 1108487521
Category : Science
Languages : en
Pages : 327
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Book Description
Planting trees to improve climate is an age-old idea, once refuted in scientific dispute more than a century ago, and reborn today with climate change worries. Spanning the 1500s to the present, this book examines the history and science of forest-climate influences, and forest management to mitigate climate change.
Author: Robert John Stathers
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 44
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Book Description
Author: David Leslie Spittlehouse
Publisher: University of British Columbia Press
ISBN:
Category : Nature
Languages : en
Pages : 62
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Book Description
The study described in this report is part of a larger project intended to address concerns about the effects of clear-cut harvesting on high-elevation forests in southern interior British Columbia. The study investigated microclimatic conditions in mature forest and in clear-cuts of 0.1 to 10 hectares. Parameters measured include solar radiation, ultraviolet-B radiation, energy balance (fluxes of net radiation, soil heat, sensible heat, & water vapour), wind speed, precipitation & snow melt, and air & soil temperature. Results compare measurements made in forests with those made in the openings. Implications of the findings for plants & for forest hydrology are discussed.
Author: Steven C. Grossnickle
Publisher: NRC Research Press
ISBN: 9780660179599
Category : Nature
Languages : en
Pages : 428
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Book Description
This manual offers foresters information to help them understand the performance of spruce seedlings after being planted on a reforestation site. It was written for university students taking a regeneration silviculture class, and foresters and researchers who work with spruce species.
Author: Rowan Jacobsen
Publisher: Bloomsbury Publishing USA
ISBN: 1608192539
Category : Nature
Languages : en
Pages : 289
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Book Description
Many people will remember that Rachel Carson predicted a silent spring, but she also warned of a fruitless fall, a time with no pollination and no fruit. The fruitless fall nearly became a reality when, in 2007, beekeepers watched thirty billion bees mysteriously die. And they continue to disappear. The remaining pollinators, essential to the cultivation of a third of American crops, are now trucked across the country and flown around the world, pushing them ever closer to collapse. Fruitless Fall does more than just highlight this growing agricultural catastrophe. It emphasizes the miracle of flowering plants and their pollination partners, and urges readers not to take the abundance of our Earth for granted. A new afterword by the author tracks the most recent developments in this ongoing crisis.
Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 1052
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Book Description
