Management of Small-stem Stands of Lodgepole Pine, Workshop Proceedings PDF Download
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 182
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 182
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Book Description
Author: Mayo Murray
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 56
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Book Description
Author: W.T. Adams
Publisher: Springer Science & Business Media
ISBN: 9780792318576
Category : Science
Languages : en
Pages : 442
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Book Description
Tropical climates, which occur between 23°30'N and S latitude (Jacob 1988), encompass a wide variety of plant communities (Hartshorn 1983, 1988), many of which are diverse in their woody floras. Within this geographic region, temperature and the amount and seasonality of rainfall define habitat types (UNESCO 1978). The F AO has estimated that there 1 are about 19 million km of potentially forested area in the global tropics, of which 58% were estimated to still be in closed forest in the mid-1970s (Sommers 1976; UNESCO 1978). Of this potentially forested region, 42% is categorized as dry forest lifezone, 33% is tropical moist forest, and 25% is wet or rain forest (Lugo 1988). The species diversity of these tropical habitats is very high. Raven (1976, in Mooney 1988) estimated that 65% of the 250,000 or more plant species of the earth are found in tropical regions. Of this floristic assemblage, a large fraction are woody species. In the well-collected tropical moist forest of Barro Colorado Island, Panama, 39. 7% (481 of 1212 species) of the native phanerogams are woody, arborescent species (Croat 1978). Another 21. 9% are woody vines and lianas. Southeast Asian Dipterocarp forests may contain 120-200 species of trees per hectare (Whitmore 1984), and recent surveys in upper Amazonia re corded from 89 to 283 woody species ~ 10 cm dbh per hectare (Gentry 1988). Tropical communities thus represent a global woody flora of significant scope.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 626
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Book Description
Author: David M. Baumgartner
Publisher: Pullman : Cooperative Extension, Washington State University
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 400
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Book Description
Topics include the resource, physiology and genetics, site classification, factors Influencing productivities, regeneration, management, harvest and utilization of the most widely distributed conifer in western North America.
Author:
Publisher:
ISBN:
Category : Biotic communities
Languages : en
Pages : 810
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Author: William Burke Critchfield
Publisher:
ISBN:
Category : Lodge-pole pine
Languages : en
Pages : 68
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Book Description
Author: Peter Koch
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 320
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Book Description
Author: Maria Morgenstern
Publisher: UBC Press
ISBN: 077484177X
Category : Technology & Engineering
Languages : en
Pages : 224
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Geographic Variation in Forest Trees is the first book to examine this subject from a world-wide perspective. The author discusses population genetic theory and genetic systems of native North American tree species as they interact with environments in the major climatic regions in the world. He then demonstrates how this knowledge is used to guide seed zoning and seed transfer in silviculture, basing much of his discussion on models developed in Scandinavia and North America. In the final chapter, the author addresses the issue of genetic conservation -- a subject of great concern in the face of accelerated forest destruction, industrial pollution, and climatic change. This comprehensive, well-researched book makes a significant contribution to the knowledge of one of our most important renewable natural resources.
Author:
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ISBN:
Category : Coast live oak
Languages : en
Pages : 876
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