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Author: Michael Kenneth Hein
Publisher: Gebruder Borntraeger Verlagsbuchhandlung
ISBN:
Category : Science
Languages : en
Pages : 252
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Book Description
Author: Michael Kenneth Hein
Publisher: Gebruder Borntraeger Verlagsbuchhandlung
ISBN:
Category : Science
Languages : en
Pages : 252
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Book Description
Author: John Alden
Publisher: Springer Science & Business Media
ISBN: 1489916008
Category : Science
Languages : en
Pages : 565
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Book Description
As forests decline in temperate and tropical climates, highly-developed countries and those striving for greater economic and social benefits are beginning to utilize marginal forests of high-latitude and mountainous regions for resources to satisfy human needs. The benefits of marginal forests range from purely aesthetic to providing resources for producing many goods and services demanded by a growing world population. Increased demands for forest resources and amenities and recent warming of high latitude climates have generated interest in reforestation and afforestation of marginal habitats in cold regions. Afforestation of treeless landscapes improves the environment for human habitation and provides for land use and economic prosperity. Trees are frequently planted in cold climates to rehabilitate denuded sites, for the amenity of homes and villages, and for wind shelter, recreation, agroforestry, and industrial uses. In addition, forests in cold climates reduce the albedo of the earth's surface in winter, and in summer they are small but significant long-lived sinks for atmospheric carbon dioxide. Finally, growth and reproductive success of forests at their geographic limits are sensitive indices of climatic change. As efforts to adapt forests to cold climates increase, however, new afforestation problems arise and old ones intensify. Austral, northern, and altitudinal tree limits are determined by many different factors. Current hypotheses for high-latitude tree limits are based on low growing-season temperatures that inhibit plant development and reproduction.
Author: Stephen S. Talbot
Publisher:
ISBN:
Category : Gap analysis (Conservation biology)
Languages : en
Pages : 86
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Book Description
Author: F. I. Woodward
Publisher: Cambridge University Press
ISBN: 9780521282147
Category : Science
Languages : en
Pages : 192
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Book Description
Correlation between plant distribution and climate is examined over different time and space scales to determine the mechanisms of control in physiological and biochemical terms.
Author: U.S. Fish and Wildlife Service
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 456
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Book Description
Author: Flora of North America Editorial Committee
Publisher: Oxford University Press
ISBN: 0195082427
Category : Science
Languages : en
Pages : 497
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Book Description
This second volume of the magnificent compendium exhaustively describes and classifys the ferns, fern allies, and gymnosperms of North America. Covering over two dozen fern and half a dozen gymnosperm families, they survey fern species of both ecological and horticultural importance and review such gymnosperm taxa as the conifers (the dominant trees in many forests as well as important timber plants) and cycads, which display significant evolutionary features. In all, the volume assembles 509 species of ferns and fern allies and infraspecific taxa in 70 genera.
Author: Robert Roy Coats
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 34
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Book Description
The geology and geologic history of the island, with its flora, and the petrographic and chemical character of its volcanic rocks.
Author:
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 698
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Book Description
Author: Eric Hultén
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 432
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Book Description
Author:
Publisher:
ISBN: 0190202750
Category : Bryophytes
Languages : en
Pages : 729
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Book Description
