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Author:
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Category :
Languages : en
Pages : 420
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Author:
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ISBN:
Category :
Languages : en
Pages : 420
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Author: Lary M. Dilsaver
Publisher:
ISBN: 9781938086465
Category : Desert conservation
Languages : en
Pages : 0
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Book Description
National parks are different from other federal lands in the United States. Beginning in 1872 with the establishment of Yellowstone, they were largely set aside to preserve for future generations the most spectacular and inspirational features of the country, seeking the best representative examples of major ecosystems such as Yosemite, geologic forms such as the Grand Canyon, archaeological sites such as Mesa Verde, and scenes of human events such as Gettysburg. But one type of habitat--the desert--fell short of that goal in American eyes until travel writers and the Automobile Age began to change that perception. As the Park Service began to explore the better-known Mojave and Colorado deserts of southern California during the 1920s for a possible desert park, many agency leaders still carried the same negative image of arid lands shared by many Americans--that they are hostile and largely useless. But one wealthy woman--Minerva Hamilton Hoyt, from Pasadena--came forward, believing in the value of the desert, and convinced President Franklin D. Roosevelt to establish a national monument that would protect the unique and iconic Joshua trees and other desert flora and fauna. Thus was Joshua Tree National Monument officially established in 1936, with the area later expanded in 1994 when it became Joshua Tree National Park. Since 1936, the National Park Service and a growing cadre of environmentalists and recreationalists have fought to block ongoing proposals from miners, ranchers, private landowners, and real estate developers who historically have refused to accept the idea that any desert is suitable for anything other than their consumptive activities. To their dismay, Joshua Tree National Park, even with its often-conflicting land uses, is more popular today than ever, serving more than one million visitors per year who find the desert to be a place worthy of respect and preservation. Distributed for George Thompson Publishing
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309148960
Category : Technology & Engineering
Languages : en
Pages : 598
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Book Description
In the last 20 years, there has been a remarkable emergence of innovations and technological advances that are generating promising changes and opportunities for sustainable agriculture, yet at the same time the agricultural sector worldwide faces numerous daunting challenges. Not only is the agricultural sector expected to produce adequate food, fiber, and feed, and contribute to biofuels to meet the needs of a rising global population, it is expected to do so under increasingly scarce natural resources and climate change. Growing awareness of the unintended impacts associated with some agricultural production practices has led to heightened societal expectations for improved environmental, community, labor, and animal welfare standards in agriculture. Toward Sustainable Agricultural Systems in the 21st Century assesses the scientific evidence for the strengths and weaknesses of different production, marketing, and policy approaches for improving and reducing the costs and unintended consequences of agricultural production. It discusses the principles underlying farming systems and practices that could improve the sustainability. It also explores how those lessons learned could be applied to agriculture in different regional and international settings, with an emphasis on sub-Saharan Africa. By focusing on a systems approach to improving the sustainability of U.S. agriculture, this book can have a profound impact on the development and implementation of sustainable farming systems. Toward Sustainable Agricultural Systems in the 21st Century serves as a valuable resource for policy makers, farmers, experts in food production and agribusiness, and federal regulatory agencies.
Author: Pablo Campos
Publisher: Springer Science & Business Media
ISBN: 9400767072
Category : Science
Languages : en
Pages : 504
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Book Description
The oak tree was a boon companion as humans expanded their presence across much of the globe. While oak woodlands (Quercus spp.) come today in stunningly diverse forms, the stately dehesas of Spain and the dramatic oak-dominated ranchlands of California are working landscapes where cultivation and manipulation for a couple of millennia have shaped Mediterranean-type ecosystems into a profoundly modified yet productive environment that is sought-after by every manner of species. The grazing of wildlife and livestock in oak woodlands yields a remarkable plant and animal biodiversity, creating a mosaic of habitats and visually pleasing savannas. Added products unique to Spain such as Iberian pigs and cork, and in California multiple landowner benefits, include valued ecosystem services that allow owners, visitors, and conservation supporters to experience the benefits of woodland life. With its 15 chapters a decade in the making, this handsomely illustrated book covers key topics in oak woodland policy, ecology, and management in Spain and California, presenting new research results and reviewing an existing expert literature.
Author: Robin Grossinger
Publisher: Univ of California Press
ISBN: 0520951727
Category : History
Languages : en
Pages : 238
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Book Description
How has California’s landscape changed? What did now-familiar places look like during prior centuries? What can the past teach us about designing future landscapes? The Napa Valley Historical Ecology Atlas explores these questions by taking readers on a dazzling visual tour of Napa Valley from the early 1800s onward—a forgotten land of brilliant wildflower fields, lush wetlands, and grand oak savannas. Robin Grossinger weaves together rarely-seen historical maps, travelers’s accounts, photographs, and paintings to reconstruct early Napa Valley and document its physical transformation over the past two centuries. The Atlas provides a fascinating new perspective on this iconic landscape, showing the natural heritage that has enabled the agricultural success of the region today. The innovative research of Grossinger and his historical ecology team allows us to visualize the past in unprecedented detail, improving our understanding of the living landscapes we inhabit and suggesting strategies to increase their health and resilience in the future.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 486
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Author: Alexander E. Gates
Publisher: Infobase Publishing
ISBN: 0816072701
Category : Juvenile Nonfiction
Languages : en
Pages : 369
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Book Description
Provides information on earthquakes and volcanic eruptions in various regions of the world, major quakes and eruptions throughout history, and geologic and scientific terms.
Author: T. R. New
Publisher: IUCN
ISBN: 9782831701592
Category : Nature
Languages : en
Pages : 188
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Book Description
Author: Tom Gregory
Publisher:
ISBN:
Category : Sonoma County (Calif.)
Languages : en
Pages : 1186
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Author:
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ISBN:
Category : Earthquake prediction
Languages : en
Pages : 494
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