Critical Habitat for the Colorado River Endangered Fishes D; Biological Support Document B1; PDF Download
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Author:
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ISBN:
Category :
Languages : en
Pages : 240
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
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Book Description
Author: William Joe Simonds
Publisher:
ISBN:
Category : Grand River Valley (Colo.)
Languages : en
Pages : 48
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Author:
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 250
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Author:
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 2
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Book Description
Author: Susan E. Goodman
Publisher: Millbrook Press
ISBN: 0822567482
Category : Juvenile Nonfiction
Languages : en
Pages : 52
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Book Description
Describes efforts by scientists to reestablish a whooping crane flock that would spend summers in Wisconsin and winters in Florida.
Author: David J. Hafner
Publisher: IUCN
ISBN: 9782831704630
Category : Nature
Languages : en
Pages : 188
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Book Description
The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Author:
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Category : Indexes
Languages : en
Pages : 2256
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Author: Brian Wahlin
Publisher:
ISBN: 9780784413685
Category : Canals
Languages : en
Pages : 0
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Book Description
Prepared by the Task Committee on Recent Advances in Canal Automation of the Irrigation Delivery and Drainage Systems Committee of the Irrigation and Drainage Council of the Environmental and Water Resources Institute of ASCE Canal Automation for Irrigation Systems focuses on the technical aspects of modernizing irrigation systems through use of automated canal control systems. Canal automation has always offered an opportunity to save water and improve the efficiency of irrigation water supply projects or irrigation district operations. Recent technological and engineering advances now enable more accurate control of water deliveries throughout all parts of an irrigation project. Using information collected from irrigation systems around the world in conjunction with new advances in control theory research, this Manual of Practice examines how and when to implement canal automation within the context of canal modernization. Topics include: the modernization process, constraints, and concepts; survey of irrigation physical infrastructure; SCADA systems; control operation concepts; canal hydraulic properties; control methods; verification of controller performance; and implementation of control systems. MOP 131 is an essential reference for professionals in agricultural and irrigation engineering, as well as owners, managers, and operators of irrigation water delivery systems.
Author: National Research Council
Publisher: National Academies Press
ISBN: 9780309045346
Category : Technology & Engineering
Languages : en
Pages : 580
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Book Description
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
Author: Deborah B. Jensen
Publisher:
ISBN: 9780520080157
Category : Nature
Languages : en
Pages : 302
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Book Description
"Biodiversity." As argument over environmental and conservation policy grows more heated in California and throughout the nation, the term has become a buzzword. But what does biodiversity really mean? What really threatens it? Why should we care? In Our Own Hands offers a readable, scientifically sound view of California's biological diversity and what must be done to preserve it. The book will be an invaluable resource for environmental and natural resource specialists, educators, and general readers. Local and global forces threaten California's wetlands, dunes, oak woodlands, and riparian forest habitats--all declining habitats in a rapidly urbanizing, culturally heterogeneous, and politically turbulent state. Always a bellwether, California will be a model for the rest of the United States in its scientific and political solutions to conservation problems. This book proposes the first steps toward a unified national conservation policy for the twenty-first century. "Biodiversity." As argument over environmental and conservation policy grows more heated in California and throughout the nation, the term has become a buzzword. But what does biodiversity really mean? What really threatens it? Why should we care? In Our Own Hands offers a readable, scientifically sound view of California's biological diversity and what must be done to preserve it. The book will be an invaluable resource for environmental and natural resource specialists, educators, and general readers. Local and global forces threaten California's wetlands, dunes, oak woodlands, and riparian forest habitats--all declining habitats in a rapidly urbanizing, culturally heterogeneous, and politically turbulent state. Always a bellwether, California will be a model for the rest of the United States in its scientific and political solutions to conservation problems. This book proposes the first steps toward a unified national conservation policy for the twenty-first century.
