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In 2015, the UN formulated seventeen global Sustainable Development Goals (SDGs), among them ending poverty, eliminating hunger, protecting the planet and ensuring peace and prosperity. Although judicious management of soils is critical to advancing most of these goals, the word soil is not once mentioned in any of these laudable goals. SDG#15, for example, mentions land degradation but does not specifically focus on soils. In line with previous UN programs, SDGs thus reflect an utter lack of awareness of the importance of the most basic of all natural resources on which depends all terrestrial life – soils. Consequently, this book aims to document the importance of soil and soil protection to reaching these Sustainable Development Goals. This fifteen-chapter book, authored by experienced and knowledgeable researchers from around the world, is a synthesis of the knowledge and state-of-the-science, linking soil properties and processes to specific SDGs. The volume highlights individual soil related aspects of these SDGs, such as the contribution of soil science, soil management and use, measures to minimize erosion, climatic effects, carbon sequestration by soils, soil restoration, the role hydrology plays in sustainable soil management, ways to preserve soil structure of fertile volcanic soils. Soil and water pollution, which must be controlled in order to preserve soil and environmental health are also discussed. Other chapters deal with how to convince the general public of the usefulness of the SDGs and point out how the public may contribute to them, ways to manage Chernozems and the role IUSS plays in furthering and implementing the soil related measures are also discussed herein.
bodemkunde --- Soil pollution. Soil purification --- Environmental law --- United Nations
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Soils --- Soil management. --- Environmental aspects. --- Sustainable Development Goals.
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Quantifying and Modeling Soil Structure Dynamics emphasizes a systems approach to how soil structure changes in response to inputs and to the environment. Soil structure is a dynamic, complex system affected by tillage, wheel traffic, roots, soil life, shrink-swell, and freeze-thaw. In turn, soil structure affects root growth and function, soil fauna, solute transport, water infiltration, gas exchange, thermal and electrical conductivities, traffic bearing capacity, and more. Ignoring soil structure or viewing it as "static" can lead to poor predictions and management. Readers will especially appreciate the description of soil structure influence on endpoints, such as environmental contamination and efficient water use, and how models should be adjusted to include dynamic soil structure components for accurate outputs.
Soil-structure interaction. --- Soil dynamics. --- Agriculture --- Interaction sol-structure --- Sols --- Mathematical models. --- Dynamique
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Soils are the porous skin of the Earth with variable and complex structures composed of solid, liquid and gaseous phases. Being in close contact with the atmosphere, biosphere hydrosphere, and lithosphere, soils fulfill numerous functions as a filter, buffer, habitat for organisms and resource for raw materials and food rendering them as the basis for life on our Planet. Soils are subject to continuous transformations and their dynamic nature is important for the interaction of biological, biogeochemical and physical processes. At the same time soils are vulnerable and affected by human activity and often subject to degradation. This textbook (based on the 4th, German language edition) introduces the reader gently but comprehensively to soil physical processes. The authors discuss both the origin and dynamics of soil physical properties and functions - volume-mass relations of the solid, water and gas phases, grain and pore size distributions, permeability and storage capacity for water, gases and heat - and finally soil deformation and strength in relation to mechanical and hydraulic stresses resulting in structural changes through compaction, kneading, slaking and soil crusting. Unlike other soil physics textbooks, soil mechanical properties are herein described in great detail, because otherwise it is impossible to understand and adequately quantify soil stability and the effects of soil deformation on soil physical functions.The book treats the physics of water, gas and heat movement in soils and interactions with the solid phase at various scales and other factors in detail -- because these are considered the ultimate basis of any model of soil behavior.Threats to soils worldwide ultimately endanger food security for a growing world population. Because of this, the effects of soil use and degradation on transport processes, soil stability and pore functions are discussed, and options for soil protection, conservation, and amelioration are addressed.The authors close a gap between general soil science texts and very specialized treatments of foundation engineering by integrating the concepts of soil mechanics to achieve a comprehensive description of soil physical behavior. Traditional soil physics topics, such as soil – water – plant relations, soil hydrology and gas, heat and field water cycles are complemented by soil rheology, physicochemical and amelioration sciences. Well-known and recent advances in analytical approaches and methods are well explained to be of use to persons interested in improving plant growth and optimizing crop yield. This book is valuable for researchers, upper-level undergraduate students, and graduate students of agronomy, soil science, horticulture, geo-sciences, environmental science, landscape architects and everybody interested in understanding the intricate physical processes which control and modify soil functions. Problems are provided at the end of each chapter to enable readers to develop soil physics related problem solving skills.
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Tillage --- Soil management --- Soil conservation --- Sustainable agriculture --- Conservation tillage
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