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This book is primarily written for students of borderline sciences for whom knowledge of the fundamentals of soil science is absolutely essential. These students are, very frequently, confronted with books which are far too foreign in outlook and background, and cannot afford the beginner a picture of the soil that he can view in the light of his own familiarity with objects of everyday life. The intelligent layman who has an interest or stake in the soil will find this book free from technicalities, even an elementary knowledge of chemistry is not assumed. Improvement of soil is the basis of all agriculture and it is hoped that this book besides its text book appeal will help in the awakening of that mass interest in the soil which ultimately must lead to a more intelligent use of nature's most abundant gift to mankind. CONTENTS * FUNDAMENTAL LAWS OF CHEMISTRY * CHEMISTRY OF THE SOIL * SALTS IN THE SOIL * PHYSICS OF THE SOIL FRAMEWORK * MOISTURE IN SOILS * SOIL MECHANICS * SOIL FERTILITY
An abridged, student-oriented edition of Hillel's earlier published Environmental Soil Physics, Introduction to Environmental Soil Physics is a more succinct elucidation of the physical principles and processes governing the behavior of soil and the vital role it plays in both natural and managed ecosystems. The textbook is self-contained and self-explanatory, with numerous illustrations and sample problems. Based on sound fundamental theory, the textbook leads to a practical consideration of soil as a living system in nature and illustrates the influences of human activity upon soil structure and function. Students, as well as other readers, will better understand the importance of soils and the pivotal possition they occupy with respect to careful and knowledgeable conservation. - Written in an engaging and clear style, posing and resolving issues relevant to the terrestrial environment - Explores the gamut of the interactions among the phases in the soil and the dynamic interconnection of the soil with the subterranean and atmospheric domains - Reveals the salient ideas, approaches, and methods of environmental soil physics - Includes numerous illustrative exercises, which are explicitly solved - Designed to serve for classroom and laboratory instruction, for self-study, and for reference - Oriented toward practical problems in ecology, field-scale hydrology, agronomy, and civil engineering - Differs from earlier texts in its wider scope and holistic environmental conception
Education in agriculture is important as this sector caters not only to food security, but also human health. With a major focus on agriculture and to attract youth in agriculture, it is important that the education is made interesting, simple and purposeful. Textbooks are a medium of reaching out to the young minds who are in colleges and universities. The present attempt is a text book on the fundamentals of agriculture, entirely based on the syllabus for educating agricultural graduates and also based on the feedback from students. Chapter 1 describes the history and scope of agriculture, while chapter 2 covers classification of crops. Third chapter includes definitions of soil, soil composition, soil profile, soil development and different properties of soils, and the extent and distribution of the different soil classes of India is given in Chapter 4. The 5th Chapter is aboutclassification of Problem Soils and their distribution and reclamation method. Sixth chapter is on plant nutrition that includes all the functions and deficiency symptoms of plant nutrition and also the classification of nutrients. Fertilizers and manures, and its role in crop production have been dealt in Chapter 7.All aspects of irrigation and rainfed agriculture have been addressed in Chapters 8 and 9, respectively. The 10th Chapter is on Agricultural Engineering that includes implements, tillage, devices and power transmission in enhancement of agricultural productivity. Finally, exemplary Questions-Answers have been included to readily benefit students preparing for competitive examinations.
This textbook offers a superb introduction to theoretical and practical soil mechanics. Special attention is given to the risks of failure in civil engineering, and themes covered include stresses in soils, groundwater flow, consolidation, testing of soils, and stability of slopes. Readers will learn the major principles and methods of soil mechanics, and the most important methods of determining soil parameters both in the laboratory and in situ. The basic principles of applied mechanics, that are frequently used, are offered in the appendices. The author’s considerable experience of teaching soil mechanics is evident in the many features of the book: it is packed with supportive color illustrations, helpful examples and references. Exercises with answers enable students to self-test their understanding and encourage them to explore further through additional online material. Numerous simple computer programs are provided online as Electronic Supplementary Material. As a soil mechanics textbook, this volume is ideally suited to supporting undergraduate civil engineering students. “I am really delighted that your book is now published. When I “discovered” your course a few years ago, I was elated to have finally found a book that immediately resonated with me. Your approach to teaching soil mechanics is precise, rigorous, clear, concise, or in other words “crisp." My colleagues who share the teaching of Soil Mechanics 1 and 2 (each course is taught every semester) at the UMN have also adopted your book.” Emmanuel Detournay Professor at Dept. of Civil, Environmental, and Geo-Engineering, University of Minnesota, USA
Learn the secrets of soil chemistry and its role in agriculture and the environment. Examine the fundamental laws of soil chemistry, how they affect dissolution, cation and anion exchange, and other reactions. Explore how water can form water-bridges and hydrogen bonding, the most common forces in adsorption, chelation, and more. Discover how elect
to Soil Dynamics Arnold Verruijt Delft University of Technology, Delft, The Netherlands Arnold Verruijt Delft University of Technology 2628 CN Delft Netherlands [email protected] A CD-ROM accompanies this book containing programs for waves in piles, propagation of earthquakes in soils, waves in a half space generated by a line load, a point load, a strip load, or a moving load, and the propagation of a shock wave in a saturated elastic porous material. Computer programs are also available from the website http://geo.verruijt.net ISBN 978-90-481-3440-3 e-ISBN 978-90-481-3441-0 DOI 10.1007/978-90-481-3441-0 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: 2009940507 © Springer Science+Business Media B.V. 2010 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, micro?lming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied speci?cally for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Preface This book gives the material for an introductory course on Soil Dynamics, as given for about 10 years at the Delft University of Technology for students of civil en- neering, and updated continuously since 1994.
Within these vivid, full-color pages children will discover God's purpose for creating insects, and the corruption caused by sin. They will also see the world's largest insects, insects designed with camouflage, the most beautiful insects, the weirdest insects, and more! With their alluring beauty, incredible design features, and limitless variety, bugs are a living testament to an all-wise, wonderful Creator. What you will see page-after-page are these creatures doing just what they were designed to do, and doing it well. God is amazing! Why did God create such pesky insects?In what way are bugs signposts to God's brilliant creativity?What types of butterflies are bigger than some birds?
A fact packed celebration of science from the clever people who bring you AQUILA magazine. The Book of Big Science Ideas introduces young readers, aged 8 and up, to 15 brilliant science ideas and more than 50 ingenious thinkers who have helped shape our understanding of the world. What is everything made of? What is our place in space? Can machines think? And why does your hat come hurtling back down after you've chucked it into the air? This book has the answers! Readers will learn all about established ideas such as atoms, electricity and the solar system, as well as ideas that are still evolving such as gravity, energy and classification, right up to recent discoveries like AI and genetics. Each big idea is explored over two double-page spreads: the first explains the idea in rich detail and with plenty of bright and engaging illustrations and diagrams, while the second spread introduces readers to the key scientists and thinkers who helped shape the idea with fun portraits for each one. Thinkers include, Wang Zhenyi, Louis Pasteur, Marie Curie, James Joule, Rosalind Franklin, Charles Darwin, Aristotle, Edith Clarke, Isaac Newton, Grace Hopper, Alan Turing, Ada Lovelace and many, many more! Spreads on why ideas matter, the scientific method, future ideas and even more scientists to discover are also included, and a detailed timeline and glossary of scientific terms ensure that readers have the tools to really get to grips with the concepts. This is the perfect book for science-loving kids everywhere.
Explains the factors which determine and control the engineering properties of soils--particularly volume change, deformation, strength and permeability. New to this edition: expanded coverage of residual and tropical soils, environmental aspects of soil behavior, material on partly saturated soils, revised treatment of direct or coupled hydraulic, chemical, thermal and electrical flows through soil.
Audience: Students studying environmental science or participating in an Envirothon or Science Olympiad will find Know Soil, Know Life is an easily accessible resource. Undergraduate students in introductory ecology and environmental science classes will have a manageable soils textbook. Scientists in related disciplines wildlife, forestry, geology, hydrology, biology, zoology will enjoy this engaging introduction to soils.