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About this product
- Author(s)Nyle C. Brady,Raymond R. Weil
- PublisherPearson Education (US)
- Date of Publication01/03/2016
- GenreGeography & Earth Science: Textbooks & Study Guides
- Country of PublicationUnited States
- Width216 mm
- Height276 mm
- Edition Statement15th edition
- Table Of ContentsContents Preface xv 1The soils around us 1 1.1 What Ecosystem Services Do Soils Perform? 2 1.2 How Do Soils Support Plant Growth? 3 1.3 How Do Soils Regulate Water Supplies? 7 1.4 How Do Soils Recycle Raw Materials? 8 1.5 How Do Soils Modify the Atmosphere? 8 1.6 What Lives in the Soil Habitat? 8 1.7 Soil as an Engineering Medium 11 1.8 The Pedosphere and the Critical Zone? 12 1.9 Soils as Natural Bodies 12 2.5 How Do Living Organisms (Including People) Affect Soil Formation? 57 2.6 How Does Topography Affect Soil Formation? 62 2.7 How Does Time Affect Soil Formation 65 2.8 Four Basic Processes of Soil Formation 67 2.9 The Soil Profile 70 2.10 Urban Soils 77 2.11 Conclusion 81 Study Questions 81 References 82 1.10 The Soil Profile and Its Layers (Horizons) 15 3 1.11 Topsoil and Subsoil 18 1.12 Soil-Interface of Air, Minerals, Water, and Life 20 1.13 What are the Mineral (Inorganic) Constituents of Soils? 20 1.14 The Nature of Soil Organic Matter 23 1.15 Soil Water-Dynamic and Complex 25 1.16 Soil Air: A Changing Mixture of Gases 26 1.17 How Do Soil Components Interact to Supply Nutrients to Plants? 26 1.18 How Do Plant Roots Obtain Nutrients? 28 1.19 Soil Health, Degradation, and Resilience 30 1.20 Conclusions 31 Study Questions 32 References 32 2 Information of soils from Parent Materials 33 2.1 Weathering of Rocks and Minerals 33 2.2 What Environmental Factors Influence Soil Formation? 41 2.3 Parent Materials 42 2.4 How Does Climate Affect Soil Formation? 55 3 Soil Classification 83 3.1 Concept of Individual Soils 83 3.2 Soil Taxonomy: A Comprehensive Classification System 85 3.3 Categories and Nomenclature of Soil Taxonomy 92 3.4 Soil Orders 94 3.5 Entisols (Recent: Little If Any Profile Development) 96 3.6 Inceptisols (Few Diagnostic Features: Inception of B Horizon) 99 3.7 Andisols (Volcanic Ash Soils) 100 3.8 Gelisols (Permafrost and Frost Churning) 102 3.9 Histosols (Organic Soils Without Permafrost) 103 3.10 Aridisols (Dry Soils) 107 3.11 Vertisols (Dark, Swelling, and Cracking Clays) 109 3.12 Mollisols (Dark, Soft Soils of Grasslands) 112 3.13 Alfisols (Argillic or Natric Horizon, Moderately Leached) 114 3.14 Ultisols (Argillic Horizon, Highly Leached) 115 3.15 Spodosols (Acid, Sandy, Forest Soils, Highly Leached) 117 3.16 Oxisols (Oxic Horizon, Highly Weathered) 118 3.17 Lower-Level Categories in Soil Taxonomy 121 3.18 Conclusion 128 Study Questions 129 References 129 4 Soil architecture and Physical Properties 130 4.1 Soil Color 130 4.2 Soil Texture (Size Distribution of Soil Particles) 134 4.3 Soil Textural Classes 139 4.4 Structure of Mineral Soils 144 4.5 Formation and Stabilization of Soil Aggregates 148 4.6 Tillage and Structural Management of Soils 156 4.7 Soil Density 161 4.8 Pore Space of Mineral Soils 171 4.9 Soil Properties Relevant to Engineering Uses 175 4.10 Conclusion 185 Study Questions 185 References 186 5 Soil Water: Characteristics and Behavior 188 5.1 Structure and Related Properties of Water 189 5.2 Capillary Fundamentals and Soil Water 191 5.3 Soil Water Energy Concepts 193 5.4 Soil Water Content and Soil Water Potential 199 5.5 The Flow of Liquid Water in Soil 207 5.6 Infiltration and Percolation 213 5.7 Water Vapor Movement in Soils 217 5.8 Qualitative Description of Soil Wetness 218 5.9 Factors Affecting Amount of Plant-Available Soil Water 222 5.10 Mechanisms by Which Plants are Supplied with Water 228 5.11 Conclusion 230 Study Questions 230 References 232 6 Soil and the hydrologic Cycle 233 6.1 The Global Hydrologic Cycle 234 6.2 Fate of Incoming Water 236 6.3 The Soil-Plant-Atmosphere Continuum (SPAC) 244 6.4 Control of ET 250 6.5 Liquid Losses of Water from the Soil 255 6.6 Percolation and Groundwater 257 6.7 Enhancing Soil Drainage 262 6.8 Septic Tank Drain Fields 269 6.9 Irrigation Principles and Practices 273 6.10 Conclusion 280 Study Questions 282 References 282 7 Soil aeration and Temperature 284 7.1 Soil Aeration-The Process 284 7.2 Means of Characterizing So
- Author BiographyDr. Raymond Weil, Professor, University of Maryland College Park B.S. in Crop Science from Michigan State University, East Lansing, MI, 1970. M.S. in Soil Science from Purdue University, West Lafayette, IN, 1973. Ph.D. in Soil Ecology from Virginia Tech, Blacksburg, VA, 1977. Elected Fellow in 2003 of both the Soil Science Society of America and the American Society of Agronomy. Weil has been active in soil science research since 1972 and has made many contributions in the areas of nutrient cycling and management, environmental impact of soil management, and assessment of soil quality. His current research is focused on the assessment and improvement of soil quality and organic matter. He has conducted research in several countries outside the United States, including Ethiopia, Chad, Brazil, Honduras, Sri Lanka, Zimbabwe, Malawi and Tanzania. In addition to his teaching at the University of Maryland, he has conducted many training workshops for such agencies as the USDA, The World Bank, The Rodale Research Institute, and the International Food Policy Center. Dr. Weil has authored or coauthored more than 100 scientific publications in soil science and related areas. Dr. Nyle Brady Dr. Brady has, since 1947, worked in education, research and research administration, focusing on both international and U.S. issues. He is past president of the SSSA and served six years as Editor-in-Chief of the SSSA Proceedings and is Emeritus Professor at Cornell University. He has served in leadership positions with Cornell University, the International Rice Research Institute, USAID, the United Nations Development Programme and the World Bank. He is recognized around the world as author and co-author of eleven editions of the world's most widely used soil science textbook, The Nature and Properties of Soils.
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