Author: C. Wayne Martin
Publisher:
ISBN:
Category : Clearcutting
Languages : en
Pages : 24
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Book Description
S2Revegetation was studied during the first 10 years after clearcutting two sites in the northern hardwood forest of New Hampshire. One site was a 12-ha block clearcut; the other was a 36-ha progressive strip cut harvested in three phases. Permanent plots on each site were measured at 140 4-year intervals. Changes in the density and biomass of trees, shrubs, and herbs are presented with emphasis on the major commercial species and their primary noncommercial competitors. S3.
Author: James W. Hornbeck
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 52
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Book Description
Author: Bill Freedman
Publisher: Academic Press
ISBN: 9780122665424
Category : Nature
Languages : en
Pages : 638
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Book Description
Like ecology, environmental science is multi- and interdisciplinary. The three major subdisciplines of environmental science are : Population, Resources, Environment. Of the above three major subdisciplines with environmental science, this book is more concerned with the third - the ecological effects of stressors, with particular reference to those associated with the activities of humans. A chapter deals with the use and abuse of biological resources and the emerging field of ecological economics. Some sections deal with environmental impact assessment; ecological monitoring; and the responsibilities of ecologists in environmental issues, environmental education, and the design of sustainable economic systems.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1120
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Author:
Publisher:
ISBN:
Category : Clearcutting
Languages : en
Pages : 32
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 464
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Author: James W. Hornbeck
Publisher:
ISBN:
Category : Clearcutting
Languages : en
Pages : 36
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Book Description
S2Two even-age management systems, progressive strip cutting and block clearcutting, have been studied since 1970 on small watersheds at the Hubbard Brook Experimental Forest, New Hampshire. In the strip cutting, all merchantable trees were harvested in a series of three strips over 4 years (1970-74). In the block clearcutting, all trees were harvested in a single operation in 1970. This paper contrasts progressive strip cutting and block clearcutting for the 10-year period after initiation of harvest in terms of hydrologic response, erosion losses, stream water ions, nutrient leaching, nutrient removals in harvested products, and natural regeneration of vegetation.S3.
Author: Sandra S. Coleman
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 520
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Book Description
Author: Ralph D. Nyland
Publisher: McGraw-Hill Science, Engineering & Mathematics
ISBN:
Category : Nature
Languages : en
Pages : 664
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Book Description
Trees/forestry, regeneration, degradation.
Author: Sarah Whitney Thurston
Publisher:
ISBN:
Category :
Languages : en
Pages : 160
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Book Description
