Salinity and Sodicity

Explore the growing problem of soil salinity and sodicity and its impact on the environment, profitability, the human population, and soil resilience In Salinity and Sodicity: A Global Challenge to Food Security, Environmental Quality, and Soil Resilience, a team of distinguished educators delivers an expert discussion of salinity and sodicity management. This book is designed to improve the problem-solving capabilities of students, soil health professionals, certified crop advisors, and other practicing professionals in this area. In addition to an introduction to the causes of a rapidly growing problem, Salinity and Sodicity explores different measurement techniques, provides answers to common questions, provides potential solutions in a way that’s appropriate for introductory classes on soil salinity and sodicity management. It’s an ideal reference manual for professionals, as well as an effective tool for classrooms and crop advisor workshops. Readers will also find: A thorough introduction to the use of supplemental irrigation and the impact of salts on the environment Comprehensive explorations of the economic considerations for farming problematic soils Practical discussions of the effects of salinity and sodicity on erosion and greenhouse gas emissions Practical case studies, problem sets, and an instructor answer key Perfect for undergraduate, graduate, and doctoral students and certified and practicing soil professionals and advisors, Salinity and Sodicity will also benefit industry and academic researchers with an interest in soil salinity and sodicity in dryland regions.

Scope xv 1 An Introduction to Salinity and Sodicity 1 Shaina Westhoff, David E. Clay, Kristopher Osterloh, Sharon A. Clay, Thomas M. DeSutter, Thandiwe Nleya, Jorge F. S. Ferreira, Donald L. Suarez, and Devinder Sandhu 2 Salinity, the Silent Profit Killer 7 Kyle P. Jore and Joleen C. Hadrich 3 Formation and Classification of Salt-Affected Soils 1 Shaina Westhoff, Kristopher Osterloh, and Doug Malo 4 Laboratory Methods for Determining Salinity and Sodicity 31 Thomas M. DeSutter, David E. Clay, J.D. Oster, Shanna Westhoff, and Beverly Alvarez-Torres 5 Monitoring Soil Salinity and Water Content with Electromagnetic Sensors 41 Thijs J. Kelleners 6 Using Soil Sensors to Assess Soil Salinity 51 Shailesh Pandit and David E. Clay 7 Use of Models to Assess Salinity and Water Stress for Irrigated Corn (Zea mays) Production 57 J. D. Oster and Aaron L. M. Daigh 8 How to Use Remote Sensing to Identify Salt-affected Soil 63 Jiyul Chang and Jose P. Castro 9 Plant Reponses to Salt Stress 73 Thandiwe Nleya, Sharon A. Clay, Lora Perkins, and Chantel Mertz 10 Native Plant Restoration of Salt-impacted Soils 85 Lora Perkins, Abigail Blanchard, Krista Ehlert, and A. Joshua Leffler 11 Benefits of Phytoremediation when Repairing Salt-affected Soils 93 Sharon A. Clay 12 Water Management and Chemical Amendments in the Remediation of Saline and Sodic Soils 99 Shaina Westhoff, Thomas M. DeSutter, J. D. Oster, and David E. Clay 13 An Introduction to Coastal Flooding Impact on Salinity and Sodicity in Agricultural Fields 113 Jarrod Miller 14 Greenhouse Gas Emissions from Salt-Affected Soils 121 David E. Clay, Brennan Lewis, Sharon A. Clay, Shailesh Pandit, and Graig Reicks 15 Case Studies on Salt-Affected Soil Remediation 129 David E. Clay, Shailesh Pandit, and Dwarika Bhattarai 16 Critical Questions About the Origins and Plant Responses to Soil Salinity and Sodicity 143 Jorge F. S. Ferreira, Donald L. Suarez, and Devinder Sandhu Answer Key 157