Erosion Download Ebook PDF Epub Online

Author : Terry Tempest Williams
Publisher : Sarah Crichton Books
Release : 2019-10-08
Page : 336
Category : Nature
ISBN 13 : 0374712298
Description :


Fierce, timely, and unsettling essays from an important and beloved writer and conservationist Terry Tempest Williams's fierce, spirited, and magnificent essays are a howl in the desert. She sizes up the continuing assaults on America's public lands and the erosion of our commitment to the open space of democracy. She asks: "How do we find the strength to not look away from all that is breaking our hearts?" We know the elements of erosion: wind, water, and time. They have shaped the spectacular physical landscape of our nation. Here, Williams bravely and brilliantly explores the many forms of erosion we face: of democracy, science, compassion, and trust. She examines the dire cultural and environmental implications of the gutting of Bear Ears National Monument—sacred lands to Native Peoples of the American Southwest; of the undermining of the Endangered Species Act; of the relentless press by the fossil fuel industry that has led to a panorama in which "oil rigs light up the horizon." And she testifies that the climate crisis is not an abstraction, offering as evidence the drought outside her door and, at times, within herself. These essays are Williams's call to action, blazing a way forward through difficult and dispiriting times. We will find new territory—emotional, geographical, communal. The erosion of desert lands exposes the truth of change. What has been weathered, worn, and whittled away is as powerful as what remains. Our undoing is also our becoming. Erosion is a book for this moment, political and spiritual at once, written by one of our greatest naturalists, essayists, and defenders of the environment. She reminds us that beauty is its own form of resistance, and that water can crack stone.


Author : Torrey Maloof
Publisher : Teacher Created Materials
Release : 2014-11-15
Page : 32
Category : Juvenile Nonfiction
ISBN 13 : 1480746118
Description :


Earth is constantly changing. Wind, water, and even humans change Earth's surface. The land is broken down and worn away by erosion. Introduce students to weathering and erosion with this science reader that features easy-to-read text. Nonfiction text features include a glossary, index, and detailed images to facilitate close reading and help students connect back to the text. Aligned to state and national standards, the book also includes a fun and engaging science experiment to develop critical thinking and help students practice what they have learned.


Author : Robin Michal Koontz
Publisher : Capstone Classroom
Release : 2006-07-01
Page : 24
Category : Juvenile Nonfiction
ISBN 13 : 9781404822016
Description :


How does that work? Why? These fun science books answer kids' questions about the world around them--and encourage them to ask more.


Author : David R. Montgomery
Publisher : Univ of California Press
Release : 2012-04-10
Page : 296
Category : Nature
ISBN 13 : 0520952111
Description :


Dirt, soil, call it what you want—it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern times, Dirt: The Erosion of Civilizations explores the compelling idea that we are—and have long been—using up Earth's soil. Once bare of protective vegetation and exposed to wind and rain, cultivated soils erode bit by bit, slowly enough to be ignored in a single lifetime but fast enough over centuries to limit the lifespan of civilizations. A rich mix of history, archaeology and geology, Dirt traces the role of soil use and abuse in the history of Mesopotamia, Ancient Greece, the Roman Empire, China, European colonialism, Central America, and the American push westward. We see how soil has shaped us and we have shaped soil—as society after society has risen, prospered, and plowed through a natural endowment of fertile dirt. David R. Montgomery sees in the recent rise of organic and no-till farming the hope for a new agricultural revolution that might help us avoid the fate of previous civilizations.


Author : R.M. Koerner
Publisher : Elsevier
Release : 2013-10-22
Page : 323
Category : Technology & Engineering
ISBN 13 : 1483292568
Description :


Geosynthetics can, and have, played a pivotal role in providing the primary functions of filtration, drainage and erosion control. Within each category this book counterpoints the design, testing and performance of the various materials against one another. The facilitation of filtration by a number of different woven and non–woven geotextiles is discussed. Design is centred around a balance between open voids [for adequate permeability] and closed voids [for proper soil retention]. This balance is compromised by long term clogging or soil loss from either the upstream soil particles or by the nature of the permeating fluid. This is a major focal area of the book. One solution to excessive filter clogging is to open up the geotextile's voids and allow sediments and micro–organisms in the permeating fluid to pass through. The challenge then becomes the design and potential clogging of the drain. The drainage aspect of geosynthetics is the second focal area. Erosion control is closely related to both filtration and drainage. The tremendous design problems, and equally large repair problems on all types of facilities, are addressed. Highway slopes, earth dams, landfill covers and solid waste daily covers are a few common situations.


Author : Ilmar Kleis
Priit Kulu
Publisher : Springer
Release : 2010-10-13
Page : 206
Category : Technology & Engineering
ISBN 13 : 9781849967068
Description :


Materials engineers, researchers and students will find this book a valuable resource on erosion wear mechanisms. It contains extensive data on erosive wear resistance of conventional steels, powder materials and coatings, and criteria for erosive wear-resistant material and coating selection. The book collects together the work of more than 130 industrially-supported research projects conducted over 50 years.


Author : J. Patrick Boyer
Publisher : Dundurn
Release : 2003-02-01
Page : 162
Category : Political Science
ISBN 13 : 1550024310
Description :


J. Patrick Boyer draws together new patterns that help explain why Canadians who care deeply about our country nevertheless feel perplexed, angered, and even embarrassed by the way we now govern ourselves. Since the late 1700s "representative government" has been part of our Canadian birthright, and since the 1800s "responsible government" has additionally been a constitutional foundation of our country. That the forms of both endure, but not their substance, is the thesis of Boyer's book. The result? An absence of accountability in Canadian government. Most of our country's pressing concerns and complex problems - from regional economic disparities to the Quebec and Western Canadian separatist movements, from tax evasion to voter apathy - can be traced back to this fundamental lack of accountability. A citizen who understands this absence sees that it makes sense to step back from a dysfunctional system. Making this accountability connection is critical, Boyer concludes, because only when we clearly understand the root cause of the problems we face as a nation can we begin to develop workable, long-term solutions.


Author : Adrian Lussi
Publisher : Karger Medical and Scientific Publishers
Release : 2006-01-01
Page : 219
Category : Medical
ISBN 13 : 3805580975
Description :


Erosive tooth wear is a multifactorial condition of growing concern to the clinician and is a subject of extensive research. This book is the first which deals in such detail with dental erosion. It presents the whole spectrum of views on the issue, from the molecular level to behavioral aspects, as well as trends in society. The multifactorial etiological pattern of erosive tooth wear is emphasized and is a strand connecting the different chapters of the book. Definition, diagnosis, prevalence, incidence and chemistry of dental erosion are discussed in the first part of the publication. Further, topics like extrinsic and intrinsic causes of dental erosion are covered and a chapter is devoted to dental erosion in children. Methods of assessment are presented and critically evaluated. The book concludes with themes on dentinal hypersensitivity, risk assessment and preventive measures and restorative options for erosive lesions. This publication is not only highly recommended to faculty members, researchers and dental students, but also to practitioners and other dental professionals who are committed to the prevention and treatment of dental erosion.


Author : R. P. C. Morgan
Mark Nearing
Publisher : John Wiley & Sons
Release : 2016-04-13
Page : 608
Category : Technology & Engineering
ISBN 13 : 1444328468
Description :


The movement of sediment and associated pollutants over thelandscape and into water bodies is of increasing concern withrespect to pollution control, prevention of muddy floods andenvironmental protection. In addition, the loss of soil on site hasimplications for declining agricultural productivity, loss ofbiodiversity and decreased amenity and landscape value. The fate ofsediment and the conservation of soil are important issues for landmanagers and decision-makers. In developing appropriate policiesand solutions, managers and researchers are making greater use oferosion models to characterise the processes of erosion and theirinteraction with the landscape. A study of erosion requires one to think in terms ofmicroseconds to understand the mechanics of impact of a singleraindrop on a soil surface, while landscapes form over periods ofthousands of years. These processes operate on scales ofmillimetres for single raindrops to mega-metres for continents.Erosion modelling thus covers quite a lot of ground. This bookintroduces the conceptual and mathematical frameworks used toformulate models of soil erosion and uses case studies to show howmodels are applied to a variety of purposes at a range of spatialand temporal scales. The aim is to provide land managers and otherswith the tools required to select a model appropriate to the typeand scale of erosion problem, to show what users can expect interms of accuracy of model predictions and to provide anappreciation of both the advantages and limitations of models.Problems covered include those arising from agriculture, theconstruction industry, pollution and climatic change and range inscale from farms to small and large catchments. The book will alsobe useful to students and research scientists as an up-to-datereview of the state-of-art of erosion modelling and, through aknowledge of how models are used in practice, in highlighting thegaps in knowledge that need to be filled in order to develop evenbetter models.


Author :
Publisher :
Release : 1988
Page :
Category : Beach erosion
ISBN 13 :
Description :



Author : William Fred Adler
Publisher : ASTM International
Release : 1979
Page : 643
Category : Electron microscopy
ISBN 13 : 9780803103344
Description :



Author : Pierre R. Roberge
Publisher : National Assn of Corrosion
Release : 2004
Page : 94
Category : Technology & Engineering
ISBN 13 :
Description :



Author : G. Kiriakidis
G. Carter
Publisher : Springer
Release : 2011-10-17
Page : 480
Category : Technology & Engineering
ISBN 13 : 9789401084680
Description :


The members of the organising Committee and their colleagues have, for many years been investigating the evol ution of the fas'cinating surface features which develop during sputtering erosion of solids. Such experimental, theoretical and computational studies have also been carried out in many international laboratories and, as well as much cow~onality and agreement, substantial disagreements were unresolved. In view of the increasing importance of such processes in technological applications such as microlitho graphic etching for the patterning of solid state devices and in fusion technology it was felt opportune to hold a meeting in this area. Furthermore the use of energetic atomic and ion fluxes is also becoming of increasing importance in assisting or modifying the growth of thin films in a number of important industrial processes and it was therefore rational to combine the, study of both erosional and growth processes in a single meeting. These proceedings include 16 invited review and 15 oral or poster presented contributions to the NATO Advanced Study Institute on the "Erosion and Growth of Solids Stimulated by Atom and Ion Beams". The review contributions span the range from the fundamental concepts of ballistic sputtering, and how this influences surface morphology evolution, through processes involving entrapment of incident species to mechanisms involved in'the use of chemically reactive ion species. Further reviews outline the influence of energetic irradiation upon surface growth by atomic deposition whilst others discuss technologkal applications of both areas of growth and erosion.


Author : Kalpana Misra
Publisher : Psychology Press
Release : 1998
Page : 270
Category : Political Science
ISBN 13 : 9780415920339
Description :


"From Post-Maoism to Post-Marxism" chronicles Deng Xiaoping's failure to produce a new, internally consistent and persuasive ideology to support the post-Mao regime. In the end, China has been unable to find a sustainable middle ground between socialism and capitalism.


Author : Mohamed Meddi
Gil Mahé
Publisher : MDPI
Release : 2019-09-17
Page : 212
Category : Technology & Engineering
ISBN 13 : 3039214314
Description :


Climate and anthropogenic changes impact the conditions of erosion and sediment transport in rivers. Rainfall variability and, in many places, the increase of rainfall intensity have a direct impact on rainfall erosivity. Increasing changes in demography have led to the acceleration of land cover changes in natural areas, as well as in cultivated areas, and, sometimes, in degraded areas and desertified landscapes. These anthropogenized landscapes are more sensitive to erosion. On the other hand, the increase in the number of dams in watersheds traps a great portion of sediment fluxes, which do not reach the sea in the same amount, nor at the same quality, with consequences on coastal geomorphodynamics. This book is dedicated to studies on sediment fluxes from continental areas to coastal areas, as well as observation, modeling, and impact analysis at different scales from watershed slopes to the outputs of large river basins. This book is concentrated on a number of keywords: “erosion” and “sediment transport”, “model” and “practice”, and “change”. The keywords are briefly discussed with respect to the relevant literature. The contributions in this book address observations and models based on laboratory and field data, allowing researchers to make use of such resources in practice under changing conditions.


Author : Jürgen Schmidt
Publisher : Springer Science & Business Media
Release : 2000-08-15
Page : 318
Category : Mathematics
ISBN 13 : 9783540667643
Description :


Colour photographs illustrating different forms of soil erosion.


Author : L. D. Meyer
W. C. Harmon
Publisher :
Release : 1981
Page : 64
Category : Goodwin Creek Watershed (Miss.)
ISBN 13 :
Description :


Well over half the sediment lost from many watersheds originates as eroded soil from their uplands and bottomlands. Such erosion occurs over such a large area that it often goes unnoticed in comparison to the more spectacular losses from stream channels and gullies, yet it may be an even greater sediment source. Upland erosion is sometimes noticeable when rilling occurs at serious rates, but the 'unseen' interrill erosion, caused primarily by raindrop impact on land between rills and gullies, may also produce great quantities of sediment. This research was conducted to study interrill erosion rates for the major soils and land uses in Goodwin Creek Watershed by applying hundreds of simulated rainstorms on many different soils and cropping conditions. The transport of sediment was studied for various conditions that are typical of intensively cropped land to evaluate how much sediment would be carried from the sources to the major stream systems. The capacity of runoff to transport sediment was affected most by the steepness of the runoff flow channel. Steepnesses exceeding 1% could transport large quantities of sediment. Transport capacity also increased rapidly as flow rate increased and as sediment size decreased. This research confirms that Goodwin Creek Watershed soils are very erodible and that the resulting sediment is readily transported.


Author :
Publisher : Government Printing Office
Release : 2006
Page : 400
Category : Electronic government information
ISBN 13 :
Description :


NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT--OVERSTOCK SALE --Significantly reduced list price while supplies last The Erosion and Sedimentation Manual provides a comprehensive coverage of subjects in nine chapters (i.e., introduction, erosion and reservoir sedimentation, noncohesive sediment transport, cohesive sediment transport, sediment modeling for rivers and reservoirs, sustainable development and use of reservoirs, river process and restoration, dam decommissioning and sediment management, and reservoir surveys and data analysis). Each chapter is self-contained, with cross references of subjects that are discussed in different chapters of this manual. The manual also includes a list of commonly used notations used in the erosion and sedimentation literature, conversion factors between the Imperial and metric units, physical properties of water, and author and subject indexes for easy reference. Each chapter has a list of reference for readers who would like to seek out more detailed information on specific subjects. Audience The manual would be useful for researchers, university professors, graduate students, geologists, hydrographic survey analysts, municipal and state water research specialists, and engineers in solving erosion and sedimentation problems. Related products: Earth Science resources collection can be found here: https://bookstore.gpo.gov/catalog/science-technology/earth-science


Author : Taylor & Francis Group
Publisher :
Release : 2018-04-13
Page :
Category :
ISBN 13 : 9781315893808
Description :



Author : Jacqui Bailey
Publisher : Capstone Classroom
Release : 2006-01-01
Page : 31
Category : Juvenile Nonfiction
ISBN 13 : 9781404819962
Description :


Explains how weather and water wear away rock and includes two experiments to assist in understanding how erosion works.