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Author: Siegmar-W. Breckle
Publisher: Springer Science & Business Media
ISBN: 3642211178
Category : Science
Languages : en
Pages : 499
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Book Description
Having been the fourth largest lake on the globe roughly 50 years ago, today the Aral Sea no longer exists. Human activities caused its desiccation and the formation of a huge new desert, the Aralkum, which can be regarded as one of the greatest ecological catastrophes and - at the same time - the largest primary succession experiment of mankind. This volume brings together the results of international and interdisciplinary long-term studies on the new desert ecosystem and is divided into four main sections. The first section provides an overview of the physical characteristics of the area and covers geological, pedological, geomorphological and climatological aspects and their dynamics, especially dust-storm dynamics. The second focuses on the biotic aspects and highlights the spatial and temporal patterns of the flora and fauna. In the third section studies and projects aiming to combat desertification by phytomelioration and to develop strategies for the conservation of biodiversity are presented. The book is rounded off with a section providing a synthesis and conclusions.
Author: Siegmar-W. Breckle
Publisher: Springer Science & Business Media
ISBN: 3642211178
Category : Science
Languages : en
Pages : 499
Get Book Here
Book Description
Having been the fourth largest lake on the globe roughly 50 years ago, today the Aral Sea no longer exists. Human activities caused its desiccation and the formation of a huge new desert, the Aralkum, which can be regarded as one of the greatest ecological catastrophes and - at the same time - the largest primary succession experiment of mankind. This volume brings together the results of international and interdisciplinary long-term studies on the new desert ecosystem and is divided into four main sections. The first section provides an overview of the physical characteristics of the area and covers geological, pedological, geomorphological and climatological aspects and their dynamics, especially dust-storm dynamics. The second focuses on the biotic aspects and highlights the spatial and temporal patterns of the flora and fauna. In the third section studies and projects aiming to combat desertification by phytomelioration and to develop strategies for the conservation of biodiversity are presented. The book is rounded off with a section providing a synthesis and conclusions.
Author: Walter Clay Lowdermilk
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 18
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Book Description
The history of civilizations is a record of struggles against the progressive dessication of civilized lands. The more ancient the civilization, the drier and more wasted, usually, is the supporting country.
Author: Martin Williams
Publisher: Cambridge University Press
ISBN: 1107016916
Category : Nature
Languages : en
Pages : 653
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Book Description
A synthesis of the environmental and climatic history of every major desert and desert margin, for researchers and advanced students.
Author: Siegmar-W. Breckle
Publisher: Springer Science & Business Media
ISBN: 364259560X
Category : Science
Languages : en
Pages : 473
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Book Description
Changing desert areas for land use implies a lot of ecological problems. These and related ones are dealt with in this book covering various interdisciplinary and international aspects. Large areas in arid and semi-arid regions are already polluted in various ways. One of the biggest problems is the anthropogenic salinization by inadequate means of agriculture and irrigation. Additionally, most arid areas in the world are dramatically overgrazed. Methods and practices of a sustainable land use in deserts are urgently needed in many arid regions. This book gives a broad survey on some of the affected regions of the world as well as some case studies from elsewhere (Aral Sea, Negev desert, Namib desert etc.). Thus, basic and applied sciences are brought together. Water management in deserts, grazing systems or reclamation of desertified areas are among the topics of this book, as well as social and economic aspects.
Author: Roy H. Behnke
Publisher: Springer
ISBN: 364216014X
Category : Science
Languages : en
Pages : 556
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Book Description
The question in the title of this book draws attention to the shortcomings of a concept that has become a political tool of global importance even as the scientific basis for its use grows weaker. The concept of desertification, it can be argued, has ceased to be analytically useful and distorts our understanding of social-environmental systems and their resiliency, particularly in poor countries with variable rainfall and persistent poverty. For better policy and governance, we need to reconsider the scientific justification for international attempts to combat desertification. Our exploration of these issues begins in the Sahel of West Africa, where a series of severe droughts at the end of the 20th century led to the global institutionalization of the idea of desertification. It now seems incontrovertible that these droughts were not caused primarily by local land use mismanagement, effectively terminating a long-standing policy and scientific debate. There is now an opportunity to treat this episode as an object lesson in the relationship between science, the formation of public opinion and international policy-making. Looking beyond the Sahel, the chapters in this book provide case studies from around the world that examine the use and relevance of the desertification concept. Despite an increasingly sophisticated understanding of dryland environments and societies, the uses now being made of the desertification concept in parts of Asia exhibit many of the shortcomings of earlier work done in Africa. It took scientists more than three decades to transform a perceived desertification crisis in the Sahel into a non-event. This book is an effort to critically examine that experience and accelerate the learning process in other parts of the world.
Author: Diana K. Davis
Publisher: MIT Press
ISBN: 0262333546
Category : Nature
Languages : en
Pages : 302
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Book Description
An argument that the perception of arid lands as wastelands is politically motivated and that these landscapes are variable, biodiverse ecosystems, whose inhabitants must be empowered. Deserts are commonly imagined as barren, defiled, worthless places, wastelands in need of development. This understanding has fueled extensive anti-desertification efforts—a multimillion-dollar global campaign driven by perceptions of a looming crisis. In this book, Diana Davis argues that estimates of desertification have been significantly exaggerated and that deserts and drylands—which constitute about 41% of the earth's landmass—are actually resilient and biodiverse environments in which a great many indigenous people have long lived sustainably. Meanwhile, contemporary arid lands development programs and anti-desertification efforts have met with little success. As Davis explains, these environments are not governed by the equilibrium ecological dynamics that apply in most other regions. Davis shows that our notion of the arid lands as wastelands derives largely from politically motivated Anglo-European colonial assumptions that these regions had been laid waste by “traditional” uses of the land. Unfortunately, such assumptions still frequently inform policy. Drawing on political ecology and environmental history, Davis traces changes in our understanding of deserts, from the benign views of the classical era to Christian associations of the desert with sinful activities to later (neo)colonial assumptions of destruction. She further explains how our thinking about deserts is problematically related to our conceptions of forests and desiccation. Davis concludes that a new understanding of the arid lands as healthy, natural, but variable ecosystems that do not necessarily need improvement or development will facilitate a more sustainable future for the world's magnificent drylands.
Author: Philipp Lehmann
Publisher: Princeton University Press
ISBN: 0691238286
Category : Business & Economics
Languages : en
Pages : 256
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Book Description
How technological advances and colonial fears inspired utopian geoengineering projects during the late nineteenth and early twentieth centuries From the 1870s to the mid-twentieth century, European explorers, climatologists, colonial officials, and planners were avidly interested in large-scale projects that might actively alter the climate. Uncovering this history, Desert Edens looks at how arid environments and an increasing anxiety about climate in the colonial world shaped this upsurge in ideas about climate engineering. From notions about the transformation of deserts into forests to Nazi plans to influence the climates of war-torn areas, Philipp Lehmann puts the early climate change debate in its environmental, intellectual, and political context, and considers the ways this legacy reverberates in the present climate crisis. Lehmann examines some of the most ambitious climate-engineering projects to emerge in the late nineteenth and early twentieth centuries. Confronted with the Sahara in the 1870s, the French developed concepts for a flooding project that would lead to the creation of a man-made Sahara Sea. In the 1920s, German architect Herman Sörgel proposed damming the Mediterranean in order to geoengineer an Afro-European continent called “Atlantropa,” which would fit the needs of European settlers. Nazi designs were formulated to counteract the desertification of Eastern Europe and Central Asia. Despite ideological and technical differences, these projects all incorporated and developed climate change theories and vocabulary. They also combined expressions of an extreme environmental pessimism with a powerful technological optimism that continue to shape the contemporary moment. Focusing on the intellectual roots, intended effects, and impact of early measures to modify the climate, Desert Edens investigates how the technological imagination can be inspired by pressing fears about the environment and civilization.
Author: Michael Welland
Publisher: Reaktion Books
ISBN: 1780233892
Category : Nature
Languages : en
Pages : 400
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Book Description
From endless sand dunes and prickly cacti to shimmering mirages and green oases, deserts evoke contradictory images in us. They are lands of desolation, but also of romance, of blistering Mojave heat and biting Gobi cold. Covering a quarter of the earth’s land mass and providing a home to half a billion people, they are both a physical reality and landscapes of the mind. The idea of the desert has long captured Western imagination, put on display in films and literature, but these portrayals often fail to capture the true scope and diversity of the people living there. Bridging the scientific and cultural gaps between perception and reality, The Desert celebrates our fascination with these arid lands and their inhabitants, as well as their importance both throughout history and in the world today. Covering an immense geographical range, Michael Welland wanders from the Sahara to the Atacama, depicting the often bizarre adaptations of plants and animals to these hostile environments. He also looks at these seemingly infertile landscapes in the context of their place in history—as the birthplaces not only of critical evolutionary adaptations, civilizations, and social progress, but also of ideologies. Telling the stories of the diverse peoples who call the desert home, he describes how people have survived there, their contributions to agricultural development, and their emphasis on water and its scarcity. He also delves into the allure of deserts and how they have been used in literature and film and their influence on fashion, art, and architecture. As Welland reveals, deserts may be difficult to define, but they play an active role in the evolution of our global climate and society at large, and their future is of the utmost importance. Entertaining, informative, and surprising, The Desert is an intriguing new look at these seemingly harsh and inhospitable landscapes.
Author: G. Ali Heshmati
Publisher: Springer Science & Business Media
ISBN: 9400766521
Category : Science
Languages : en
Pages : 491
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Book Description
This book is about the ‘how’ of desertification control as opposed to an analysis of the ‘why’ and fills a gap in the desertification-related literature in that it shows what to do in situations ranging from fixing mobile sands to arresting accelerated soil erosion in sloping lands. There are numerous illustrations to show the successful techniques. This compilation demonstrates that desertification and land degradation can be controlled and reversed with existing techniques in such widely varying environments as the Sahel of Africa to Sri Lanka and the Philippines in SE Asia, from mountains in Lesotho to low lands on desert margins in Mongolia. Proven approaches include technical interventions, changes in governance and to the legislative framework and policy reform. The book fills a gap in the desertification-related literature in that it shows what to do in situations ranging from fixing mobile sands to arresting accelerated soil erosion in sloping lands.
Author: Peter F. Ffolliott
Publisher: University of Arizona Press
ISBN: 9780816526970
Category : Nature
Languages : en
Pages : 212
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Book Description
Ten authors present an overview of the diverse natural environments in Arizona, including information on the state's climate, geology, soil and water resources, flora and fauna, and human impacts on the fragile ecosystems.
