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Books > Earth & environment > Earth sciences
Researchers in geomorphology, geochemistry, Quaternary geology, soil science, and mineralogy will welcome this volume, the first to focus exclusively on rates of silicate chemical weathering. Consisting largely of previously unpublished data from six countries, the volume examines the latest experimental, modelling, and field results.****New information is presented on topics of current research interest, including inferences about chemical mechanisms at the level of mineral surfaces, and data relating weathering rates to landscape evolution over millions of years. The volume integrates the variety of approaches used by diverse subdisciplines in the assessment of weathering rates, and provides up-to-date references.
This groundbreaking volume presents, for the first time in English, a broad historical review of the researches carried out over 170 years in the region of Lagoa Santa, Brazil, one of the most important archaeological regions in the Americas. From the pioneering work of the Danish naturalist Peter Lund in the XIX century to the recent research on the dispersion of early humans across South America, led by Walter A. Neves and colleagues, Lagoa Santa has offered remarkable findings, the largest collections of early human skeletons in the Americas, and has contributed to the overall discussions about the settlement of the Americas. This edited volume aims to fill the lack of publications in English about Lagoa Santa and gathers representatives of all the main Brazilian institutions directly involved in the archaeological and paleontological investigations in the region, in order to provide the international scientific community a comprehensive and complete account of the researches that contributed to rewrite the history of the peopling of the Americas. The book is organized in two parts. The first consists of chapters describing each of the interventions in the region, beginning with the pioneering work of Peter Lund and culminating with the latest intervention led by Walter A. Neves and his team. The second part of the book consists of reviews of current relevant research foci in the region, such as migrations, health, mortuary rituals, paleontology, rock art and technology.
The continental shelf seas have an importance out of proportion to the reatively small fraction of the area of the global ocean which they occupy. These shallow seas play and important role as the high energy boundary zones of the deep ocean where much of the ocean's tidal and wave energies are dissipated. The North Sea is an archetypal representative of such seas. This text brings the principal results from the North Sea Project which were presented at a discussion meeting organized by the Royal Society. It argues that we should understand and predict the processes of the North Sea in order to achieve a degree of rational management in the future, as environmental threats increase.
The Encyclopedia of Air adopts a unique approach to its topic, exploring air, wind, and atmosphere in all their natural and human aspects. Its 162 entries are alphabetically arranged and cover meteorological topics such as tornados, political issues such as air pollution, important scientists and aviators, technical topics such as airplanes and dirigibles, and cultural phenomena including musical, literary, and linguistic references to air and wind. Other entries cover important organizations such as the Clean Air Trust, legal issues such as the Clean Air Act, and aerial sports and recreation such as kite-flying. Containing over 50 photos and tables, this book also includes a "Guide to Selected Topics" that traces broad themes, a general bibliography, and a detailed subject index. Most of the entries provide "See also" references to related entries in the book, a listing of addition information resources--both print and electronic--and contact information for relevant groups and organizations.
This book offers a comprehensive review of the landscapes and ecosystems of the Upper Yellow River. It focuses on landscapes as a platform for considering environmental values and issues across the region. The book is based on extensive field-based analyses, applications, and photographs.
This book presents the basic theories of Plastic Mechanics of Geomaterial, including the static and dynamic mechanical properties, nonlinear and classical plastic theory, yield surface theory, hardening model, flow rule and loading-unloading criterion, the calculation theory of principal stress axe rotation, and limit analysis of geomaterial and the latest advances in FEM limit analysis. It also set forth the typical static and dynamic constitutive model of geomaterial in detail. Broadening our understanding of the basic mechanical properties and constitutive model for geomaterial, the book helps readers to establish and select the most appropriate constitutive model according to the specific engineering problems and geomaterial characteristics. This book is a valuable resource for designers and researchers in fields related to geotechnical engineering, and it can also be used as a textbook for graduate courses.
This book brings together the latest findings on mineral and thermal waters from countries in Southeastern (SE) Europe (Croatia, Bosnia and Herzegovina, Serbia, Montenegro, Macedonia, Albania, Romania and Bulgaria). Each chapter is dedicated to the most recent geochemical and hydrogeological investigations for a specific country in SE Europe, helping readers to understand the origins and applications of mineral and thermal waters - aspects which are of great importance for the economic development of this region, as these waters are renewable resources, and have been gaining in popularity over the last few decades. Thanks to the region's favorable geological conditions, it is home to more than 6,000 sources of mineral and thermal waters, characterized by different physical properties and chemical compositions.
This book gives a comprehensive presentation of our present understanding of the Earth's Hydrological cycle and the problems, consequences and impacts that go with this topic. Water is a central component in the Earth's system. It is indispensable for life on Earth in its present formand influences virtually every aspect of our planet's life support system. On relatively short time scales, atmospheric water vapor interacts with the atmospheric circulation and is crucial in forming the Earth's climate zones. Water vapor is the most powerful of the greenhouse gases and serves to enhance the tropospheric temperature. The dominant part of available water on Earth resides in the oceans. Parts are locked up in the land ice on Greenland and Antarctica and a smaller part is estimated to exist as groundwater. If all the ice over the land and all the glaciers were to melt, the sea level would rise by some 80 m. In comparison, the total amount of water vapor in the atmosphere is small; it amounts to 25 kg/m2, or the equivalent of 25 mm water for each column of air. Yet atmospheric water vapor is crucial for the Earth s energy balance. The book gives an up to date presentation of the present knowledge.Previously published in Surveys in Geophysics, Volume 35, No. 3, 2014"
This book summarizes the current state of knowledge regarding antibiotics and antibiotics resistance genes (ARGs) in the soil environment. It covers a wide range of topics to help readers understand antibiotics and ARGs in soils, the risks they pose for the environment, and options for effective control. In addition, it presents a range of essential tools and methodologies that can be used to address antibiotics and ARGs in a consistent, efficient, and cost-effective manner. Gathering contributions by international experts, the book addresses both theoretical aspects and practical applications.The topics discussed include antibiotics-producing microorganisms; the routes of entry and fate of antibiotics and resistance genes; biomonitoring approaches; dissemination of ARGs in soils; risk assessment; the impact of antibiotics and ARGs on the soil microbial community and other biota; bioremediation and biodegradation approaches; and soil management strategies for antibiotics and ARG-contaminated soils.As such, the book will be of interest to students, researchers and scholars in environmental science and engineering, toxicology, the medical and pharmaceutical sciences, environmental biotechnology, soil sciences, microbial ecology and plant biotechnology. Readers and Journals: 1. This new volume on antibiotics and antibiotics resistance genes (ARGs) in the soil environment will be of interest to students, researchers and scholars in environmental science and engineering, toxicology, the medical and pharmaceutical sciences, environmental biotechnology, soil sciences,microbial ecology and plant biotechnology. 2. The book will provide government authorities all over the world with effective strategies for the management of antibiotics and antibiotics resistance genes (ARG)- contaminated soil. 3. Gathering contributions by international experts,the book addresses both theoretical aspects and practical applications.
This book addresses development laws for axial strain and excess pore water pressure in silty clay around subway shield tunnels before and after freezing-thawing when subjected to subway loading, as well as the effect of freezing-thawing on the dynamic parameters of silty clay, including the dynamic modulus and damping ratio, introducing readers to the design and construction of bypasses in subway tunnels with the artificial freezing method. On this basis, it then studies the microstructures of silty clay before and after freezing-thawing cyclic loading by means of scanning electron microscope tests and mercury intrusion porosimetry tests. Lastly, the book presents a numerical simulation of the dynamics of silty clay around subway tunnels before and after thawing. Given its scope, it offers a valuable reference guide for construction researchers and designers alike, as well as senior undergraduate and graduate students at colleges and universities.
Carbon (C), Nitrogen (N) and Phosphorus (P) are three of the most important elements used to build living beings, and their uptake from the environment is consequently essential for all organisms. Photosynthesis is the process in which plants absorb atmospheric C as they grow and convert it to biomass. However, plants acquire N and P only when these are available in the soil solution, which makes these elements the most limiting nutrients in plant growth and productivity in most ecosystems. When plant residues and roots decompose, the C, N and P they contain is transformed primarily into soil organic matter (SOM) or C and N can release to the atmosphere. Recent interest on the global C, N and P cycles has focused attention on the different proportion of terrestrial C, N and P stored in different ecosystem pools. Cuatro Cienegas represents an exceptional place, since the plants are not the base of the food web, they are the microbial community, that recycle the elements essential for life. In this book we describe how this is an analog of early Earth.
This book contributes to the current discussion on global environmental changes by discussing modifications in marine ecosystems related to global climate changes. In marine ecosystems, rising atmospheric CO2 and climate changes are associated with shifts in temperature, circulation, stratification, nutrient input, oxygen concentration and ocean acidification, which have significant biological effects on a regional and global scale. Knowing how these changes affect the distribution and abundance of plankton in the ocean currents is crucial to our understanding of how climate change impacts the marine environment. Ocean temperatures, weather and climatic changes greatly influence the amount and location of nutrients in the water column. If temperatures and currents change, the plankton production cycle may not coincide with the reproduction cycle of fish. The above changes are closely related to the changes in radiative forcing, which initiate feedback mechanisms like changes in surface temperature, circulation, and atmospheric chemistry.
Historically, it is the land of the bison. But the land across which these powerful herds once thundered has been transformed. We know it today by such names as Montana, Wyoming, Dakota, western Iowa, and Nebraska--but it is really buffalo country, the land of the big sky rivers. This book is a tale of two rivers, a history of the majestic Missouri and how it was once wedded to the Yellowstone. Though quite different today--one dammed into reservoirs, the other unregulated with a semblance of wildness--they were once linked ecologically, geographically, and historically. Then in the twentieth century, Euro-Americans dismantled many of these connections and attempted to uncouple the streams. Viewing the rivers and their surrounding lands as a living system, Robert Kelley Schneiders focuses on four components within the Upper Missouri bioregion--the Missouri River valley, the Yellowstone River valley, Homo sapiens, and bison--to show the significance of their interaction over the past two hundred years. To frame his story, Schneiders goes back to the nineteenth-century journals of fur traders and settlers, and in the record of flora, fauna, floods, and human activity he finds evidence of rapid and disruptive change. Bison once had the greatest influence on the land, and Schneiders depicts an original bison and Indian trail network on which were overlaid the first forts and towns and then the railroads, highways, and reservoirs that reconfigured the region forever. Schneiders explains how these geographical constructs interacted with larger demographic and economic trends in the twentiety-century West, as dams and their resultant reservoirs enhanced the federal presence in the Dakotas andeastern Montana. He describes human encroachment on the rivers and tells why the Corps of Engineers dammed the Missouri but spared the Yellowstone. The engineers and their backers have so completely engineered the Missouri that few people today think of it as anything other than water. But we can reestablish our bonds to the river if we decide to let it flow once again, argues Schneiders. Removing the dams on the Missouri is the first step toward reasserting localism and grassroots democracy. In what was once buffalo country, a dormant ecology awaits rebirth. A major work of environmental history, "Big Sky Rivers offers a challenging vision for the future of the Upper Missouri bioregion.
This book provides a general introduction to the most important geophysical exploration methods and their application to forensic sciences. It describes physical principles, campaign procedures and processing, as well as interpretation techniques, while also highlighting new acquisition and data analysis procedures. A large section of the book is devoted to applications, from measurements to the interpretation of data. Further, the book shows how to design and perform a forensic survey, and offers guidance on selecting the best method for the problem at hand, and on selecting the best type of data acquisition and processing. Written in straightforward language and chiefly intended as an introductory text for students in several scientific fields, the book also offers a useful guide for specialists who want to expand their expertise in this fascinating discipline.
This volume offers an overview of the occurrence of emerging organic contaminants in Mediterranean rivers and their relevance to their chemical and ecological quality under water scarcity. With chapters covering the effects under multiple stress conditions of pharmaceuticals, polar pesticides, personal care products, and industrial chemicals, the observations presented can be applicable to other parts of the world where water scarcity is an issue . It is of interest to environmental chemists, ecologists, environmental engineers, and ecotoxicologists, as well as water managers and decision-makers.
This new edition includes updated case studies, examples and
experiments as well as a new chapter on modeling and simulations.
It also includes recent advances in wireline logging interpretation
methods, effective media models, inversion of resistivity log
measurements, dipole acoustic shear and Stoneley wave techniques,
Biot-Gassmann models andMRI.
Silicon (Si) plays a significant role in the resistance of plants to multiple stresses including biotic and abiotic stresses. Silicon is also the only element that does not damage plants when accumulated in excess. However, the contribution of Si to plant growth has been largely ignored due to its universal existence in the earth's crust. From numerous intensive studies on Si, initiated in Japan about 80 years ago, Japanese scientists realized that Si was important for the healthy growth of rice and for stability of rice production. In a worldwide first, silicon was recognized as a valuable fertilizer in Japan. The beneficial effects of Si on rice growth in particular, are largely attributable to the characteristics of a silica gel that is accumulated on the epidermal tissues in rice. These effects are expressed most clearly under high-density cultivation systems with heavy applications of nitrogen. Si is therefore recognized now as an ''agronomically essential element'' in Japan. Recently, Si has become globally important because it generates
resistance in many plants to diseases and pests, and may contribute
to reduced rates of application of pesticides and fungicides.
Silicon is also now considered as an environment-friendly element.
The achievements of Si research in Japan are introduced in this
book, in relation to soils, fertilizers and plant nutrition.
This is the first book solely devoted to Cryopedology, the study of soils of cold regions. The analysis treats Cryosols as a three-part system (active layer, transition layer, permafrost). The book considers soil-forming factors, cryogenic processes, and classification and distribution of Cryosols. Cryosols of the Arctic, Antarctica, and the high mountains are considered in detail. The chapters address cryosols and earth-system science, cryosols in a changing climate, cryosols databases and their use, and management of cryosols. The book is rich in color photographs and highlights the author's 43 field trips to Antarctica, the Arctic, and alpine areas. |
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