Changing Times at the Rocky Mountain Forest and Range Experiment Station PDF Download
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Author: R. H. Hamre
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 76
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Book Description
Author: R. H. Hamre
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 76
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 272
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 522
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Book Description
Author: Alvin L. Medina
Publisher: DIANE Publishing
ISBN: 9780788137532
Category : Nature
Languages : en
Pages : 78
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 32
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Book Description
Author: Raymond M. Turner
Publisher: University of Arizona Press
ISBN: 0816546851
Category : Science
Languages : en
Pages : 351
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Book Description
The Changing Mile, originally published in 1965, was a benchmark in ecological studies, demonstrating the prevalence of change in a seemingly changeless place. Photographs made throughout the Sonoran Desert region in the late 1800s and early 1900s were juxtaposed with photographs of the same locations taken many decades later. The nearly one hundred pairs of images revealed that climate has played a strong role in initiating many changes in the region. This new book updates the classic by adding recent photographs to the original pairs, providing another three decades of data and showing even more clearly the extent of change across the landscape. During these same three decades, abundant information about climatic variability, land use, and plant ecology has accumulated, making it possible to determine causes of change with more confidence. Using nearly two hundred additional triplicate sets of unpublished photographs, The Changing Mile Revisited utilizes repeat photographs selected from almost three hundred stations located in southern Arizona, in the Pinacate region of Mexico, and along the coast of the Gulf of California. Coarse photogrammetric analysis of this enlarged photographic set shows the varied response of the region's major plant species to the forces of change. The images show vegetation across the entire region at sites ranging in elevation from sea level to a mile above sea level. Some sites are truly arid, while others are located above the desert in grassland and woodland. Common names are used for most plants and animals (with Latin equivalents in endnotes) to make the book more accessible to non-technical readers. The original Changing Mile was based upon a unique set of data that allowed the authors to evaluate the extent and magnitude of vegetation change in a large geographic region. By extending the original landmark study, The Changing Mile Revisited will remain an indispensable reference for all concerned with the fragile desert environment.
Author: David L. Adams
Publisher: Routledge
ISBN: 135146552X
Category : Science
Languages : en
Pages : 504
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Book Description
Inland West, their historical origins, assessments of available management tools, and analyses of the various choices available to policymakers. Its goal is to help people understand the Inland West forests so that public policies can reflect a constructive and realistic framework in which forests can be managed for sustained health. This resource is the product of a scientific workshop where 35 participants, including scientists, resource managers, administrators, and environmentalists, addressed the forest health problem in the Inland West. Synthesis chapters integrate the diverse knowledge and experience which participants brought to the workshop. They identify and link together many of the ecological, social, and administrative conditions which have created the forest health problem in the West. The book is unique in that it reflects a process that fostered the use of academic research, field realities, and industrial knowledge to define an interdisciplinary problem, establish rational policy objectives, and set-up “do-able” management approaches. The following topics are analyzed: Assessing forest ecosystem health in the Inland West Historical and anticipated changes in forest ecosystems in the Inland West Defining and measuring forest health Historical range of variability as a tool for evaluating ecosystem change Administrative barriers to implementing forest health problems Economic and social dimensions of the forest health problem Fire management Ecosystem and landscape management
Author:
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 178
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Author:
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 180
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Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 334
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