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Author: Edward E. Free
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
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Author: Edward E. Free
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
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Book Description
Author: Edward Elway Free
Publisher:
ISBN:
Category : Erosion
Languages : en
Pages : 294
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Book Description
Author: A. J. Koolen
Publisher: Springer Science & Business Media
ISBN: 3642690106
Category : Technology & Engineering
Languages : en
Pages : 252
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Book Description
Compared with forces occurring in soil mechanics problems in civil engineering, the forces that are applied to soil in farming operations generally have a short duration, less than a few seconds, a small loaded area, no more than a few square decimeters, and small intensities, 10 bar being a high value. On the other hand, soil properties vary widely between those of a weak mud and a stone-like dry soil. Tillage and related applications of force to soil are practiced worldwide in farming. Tillage operations are performed on one hectare of land for every three human beings. This means that for the food production for each individual daily, something like one cubic meter of soil is stirred, or about 20 times his body weight. Theoretical knowledge of this most common human activity, which largely determines the surface shape of the fertile part of the earth, is still very limited. In this book the authors have tried to give an outline of the present state of the art. One of the starting points was a course in soil dynamics taught by the authors at the Agricultural University at Wageningen, The Netherlands. We hope to reach interested readers who have no more theoretical knowledge than high school level, as well as readers who want to go beyond the level of a third year university student. For the chapter on wheels and tires we received substantial support from F. G. J. Tijink of the Tillage Laboratory at Wageningen.
Author: Garry Willgoose
Publisher: Cambridge University Press
ISBN: 0521858798
Category : Science
Languages : en
Pages : 337
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Book Description
This book provides a holistic guide to the construction of numerical models to explain the co-evolution of landforms, soils, vegetation and tectonics. This volume demonstrates how physical processes interact to influence landform evolution, and explains the science behind the physical processes, as well as the mechanics of how to solve them.
Author: Ninghu Su
Publisher: CRC Press
ISBN: 1351032410
Category : Science
Languages : en
Pages : 340
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Book Description
This book is an unique integrated treatise, on the concepts of fractional calculus as models with applications in hydrology, soil science and geomechanics. The models are primarily fractional partial differential equations (fPDEs), and in limited cases, fractional differential equations (fDEs). It develops and applies relevant fPDEs and fDEs mainly to water flow and solute transport in porous media and overland, and in some cases, to concurrent flow and energy transfer. It is an integrated resource with theory and applications for those interested in hydrology, hydraulics and fluid mechanics. The self-contained book summaries the fundamentals for porous media and essential mathematics with extensive references supporting the development of the model and applications.
Author: Steven Earle
Publisher:
ISBN: 9781537068824
Category :
Languages : en
Pages : 628
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Book Description
This is a discount Black and white version. Some images may be unclear, please see BCCampus website for the digital version.This book was born out of a 2014 meeting of earth science educators representing most of the universities and colleges in British Columbia, and nurtured by a widely shared frustration that many students are not thriving in courses because textbooks have become too expensive for them to buy. But the real inspiration comes from a fascination for the spectacular geology of western Canada and the many decades that the author spent exploring this region along with colleagues, students, family, and friends. My goal has been to provide an accessible and comprehensive guide to the important topics of geology, richly illustrated with examples from western Canada. Although this text is intended to complement a typical first-year course in physical geology, its contents could be applied to numerous other related courses.
Author: T. R. Paton
Publisher:
ISBN:
Category :
Languages : en
Pages : 143
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Book Description
The composition of the lithosphere. Weathering. Leaching. New mineral formation. Soil fabric. The process of lateral surface movement. The effect of the biosphere on the processes of epimorphism. The effect of the biosphere on the processes of lateral movement. The factors of soil formation. Pedological provinces.
Author: Charles T. Saari
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 320
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Author:
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 164
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Author: Clarence T. Conner
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 176
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