Advances in Soil Science is a review series relevant to all areas of soil science. These reviews, intended primarily for scientists, teachers, and students of soil science, also provide technical background information for many additional workers and groups interested in our natural resources and man's influence on them. This is the eighth volume in the series with an international list of contributors from the United States, India, Canada and New Zealand. It contains four review chapters on the following subjects: factors affecting aluminum transformations in soil; soil productivity in dryland regions of developing countries; changes in soil structure under different cropping systems; properties and management of the depleted soils of India. These contributions present valuable information on a diversity of topics and serve as an excellent source of references.
Table of ContentsIonic Factors Affecting Aluminum Transformations and the Impact on Soil and Environmental Sciences.- I. Introduction.- II. Forms and Distribution of Aluminum in Soils and Associated Environments.- III. Fundamental Aqueous Chemistry of Aluminum.- IV. Influence of Clay Minerals on Aluminum Transformations.- V. Influence of Inorganic Ligands on Aluminum Transformations.- VI. Influence of Organic Acids on Aluminum Transformations.- VII. Impact of Aluminum Transformations on Soil and Environmental Sciences.- VIII. Summary and Conclusions.- Acknowledgments.- References.- Improving and Sustaining Productivity in Dryland Regions of Developing Countries.- I. Introduction.- II. Identifying and Alleviating Constraints to Productivity.- III. Conclusions.- Acknowledgments.- References.- A Conceptual Model of Changes in Soil Structure Under Different Cropping Systems.- I. Introduction.- II. The Conceptual Model.- III. General Discussion.- IV. Summary.- Acknowledgments.- References.- Distribution, Properties, and Management of Vertisols of India.- I. Introduction.- II. Physical Properties.- III. Chemical Properties.- IV. Mineralogical Properties.- V. Technology to Alleviate Adverse Soil Physical Properties.- VI. Nitrogen.- VII. Phosphorus.- VIII. Potassium.- IX. Micronutrients.- X. Perspectives and Research Needs.- XI. Summary.- Acknowledgments.- References.