Soils Under Stress

Dokuchaev carried out most of his research in Ukraine. His student and friend, Volodymyr Vernadsky, went on to create trans-disciplinary environmental sciences and the concept of Earth as a living organism, famously taken up by James Lovelock. That spring of ideas still flows and the researches captured in this volume are relevant to present-day problems, and not only in Ukraine. Soils have always been under stress but, in the Anthropocene, mankind is in the driving seat. As a sequel to Soil Science Working for a Living: Applications of soil science to present-day problems, we consider issues of policy as well as soil genesis, attributes and functions in various environments, natural and man-made. We consider human impacts on the soil cover through its use and misuse, highlight methods of research and assessment of soil quality, and the threats of soil degradation. The distinguished contributors also describe and propose various options for evaluation and remediation of degraded soils, drawing on the latest methods of modelling and cartography as well as long-term field experiments and long experience. The book will be invaluable to researchers and practitioners in soil science including graduate and post-graduate education, academics and professionals.

This second of a two-part treatise describes the phenomena of plants under stress, describing the relationship between plant structure, development, and growth and such environmental stresses as too much or too little water, light, heat, or cold.

The material in this work is focused on recent developments in research into the stress-strain behavior of geomaterials, with an emphasis on laboratory measurements, soil constitutive modeling and behavior of soil structures (such as reinforced soils, piles and slopes). The latest advancements in the field, such as the rate effect and dynamic behavior of both clay and sand, behavior of modified soils and soil mixtures, and soil liquefaction are addressed.

Why is knowledge of soil stress and deformation state important for off-road locomotion? How do you measure soil stress and deformation under wheel loads? What are the actual values of stresses and deformation in soil or snow under a passing wheel? Providing answers to these questions and more, Dynamics of Wheel-Soil Systems: A Soil Stress and Defo

This book is about the principal concept of soil mechanics that become the basis in explaining the soil mechanical behaviours. It is the extended concept of effective stress of Terzaghi and it is known as "the concept of effective stress and shear strength interaction." This new concept incorporates the role of mobilised shear strength developed within the soil body in resisting the compressive effect. Based on this new concept a comprehensive soil volume change framework has been developed known as Rotational Multiple Yield Surface Framework (RMYSF). This RMYSF is able to explain and quantify the puzzled and complex soil volume change behaviours. The main advantage of this RMYSF is that it is able to make a good prediction of soil and rock stress-strain responses at any effective stress. This will lead to accurate prediction of soil and rock settlements. Due to its simplicity and the comprehensive nature of this new fundamental concept in soil and rock mechanics, it will eventually be included in soil and rock mechanics syllabus for undergraduate and postgraduate courses. This book would be very useful for geotechnical engineers dealing with soil settlement, underground excavation, computer modelling, rock mechanics, road engineering, earth and rock dam engineering and tunnel engineering.

A selection of papers by Professor AW Skempton, aiming to show his breadth of achievement in the field of soilmechanics. The chosen papers are reproduced chronologically, most of them falling into three subject groups: soil properties, stability of slopes, and foundations. This collection is useful to engineers, research workers, and students.

This second of a two-part treatise describes the phenomena of plants under stress, describing the relationship between plant structure, development, and growth and such environmental stresses as too much or too little water, light, heat, or cold.

The first comprehensive treatment of the physiology of plants under stress. Physiology of Plants Under Stress: Environmental Factors, Volume 1 is a valuable resource for plant physiologists, horticulturists, crop scientists, plant breeders, agronomists, and plant molecular biologists. It provides the most detailed coverage, to date, of the impact of a wide range of environmental variables upon plant structure, development, and growth. Comprehensive in scope, it explores: * Plant stress physiology fundamentals, including growth regulation, membranes, phytohormones, carbon balance, and the use of stable isotopes in stress studies. * Relevant physical, chemical, and biological aspects of all forms of environmental stress and their effects upon plant metabolism. * Multiple levels of adaptation, including behavioral, morphological, anatomical, physiological, and biochemical responses. * Plant responses to specific environmental stresses such as drought and flooding, light intensity, high heat, chilling and freezing, and other. * recent advances in microbiology and genetic manipulation in the regulation of metabolic influences. * And much more. each chapter concludes with study/review outlines and self-study review questions, making this an ideal text for graduate level courses in plant physiology, horticulture, agronomy, and crop science.