The field of humic matter research has undergone drastic changes in concepts and principles since the first edition of Humic Matter in Soil and the Environment: Principles and Controversies was published more than a decade ago. Still the only book of its kind specifically addressing humic acid principles and controversies, the Second Edition presents the newest advances in humic acid science. Eleven new and rewritten chapters replace the original nine, with updated material representing modern humic acid chemistry. This includes the delineation of organic matter, humus, and humic matter. The book begins by considering organic matter as a whole, describing terrestrial and aquatic organic matter. It examines humus as a mixture of humified and nonhumified organic matter, focusing also on the importance of the nonhumified fraction-plant biopolymers in their original or slightly decomposed forms-as raw materials for formation of the humic fraction. The book then presents concepts of humic matter, referred to as humic acid, covering a range of ideas from traditional views of biopolymers to the latest concepts based on micellar, supramolecular, and nanotube chemistry. The author presents the major pathways of humification and discusses humification theories. He also examines the extraction, isolation, and fractionation of humic matter. The book reviews the chemical composition and model structures of humic acids, the chemical and spectroscopic characterization of humic substances, and the electrochemical properties of humic matter. It also addresses the agronomic, environmental, and industrial (including pharmaceutical) importance of humic matter. This revised and updated edition continues the tradition of providing comprehensive coverage of the genesis, extraction, properties, and impacts of humic matter.

Highlighting the vast differences in tropical climate, from hot and humid to cool and arctic, Soils in the Humid Tropics and Monsoon Region of Indonesia explores the climate, soil zones, and altitudinal variation in soil formation. The author explores the changes in geomorphology, especially in climate and vegetation above sea level, that have yielded zones of different soils.

The book makes accessible hard-to-find information translated from Dutch archives. Informally divided into two parts, it begins with coverage of the development of soil science in Indonesia. The author reviews the geography and geomorphology of the archipelago, climate, vegetation, and mineralization and humification processes as factors of soil formation. The second part examines the major soils, their genesis, properties, taxonomy, land use, and evaluation. The discussion moves from lowlands, to uplands, then mountains, and concludes with andosols found in the mountains as well as in the lowlands.

Focused and timely, this book knits new knowledge with old but important information that has been previously difficult to access. These features and more make it an important resource in this field.

Completely revised and updated, incorporating almost a decade's worth of developments in this field, Environmental Soil Science, Third Edition, explores the entire reach of the subject, beginning with soil properties and reactions and moving on to their relationship to environmental properties and reactions. Keeping the organization and writing style that made previous editions bestsellers, the author addresses the definitions of environmental science, ecology, and soil science, underscoring their combination into environmental soil science.

The book highlights the live biological constituents that make up the soil, exploring the changes made by agricultural operations and other human activities that lead to changes in the environment and our natural ecosystem. These include causes, effects, and solutions for acid rain, global warming, and destruction of the ozone layer. The author also provides extensive coverage of soilless agriculture, hydroponics, fish farming, vanishing biodiversity due to the destruction of jungles and the rain forest, and what to do about it.

New in the Third Edition:

• Al Gore's Nobel Prize winning politics on global warming and apocalyptic predictions
• Biofuel production from agricultural trash and the controversy over using corn for alcohol production
• Advances in biotechnology and the issues surrounding golden rice, flavr savr tomato, roundup ready plants, and GM crops
• The effects of agricultural operations and other human activities on changing soil properties and environment
• Introduction of a new soil group, Paddy soils, a unique man made soil formed by centuries of rice cultivation
• Blue Revolution and marine biodiversity
• Use of eutrophication in aquaculture

Growing ecological awareness has put the spotlight on all environmental disciplines, and environmental soil science is no exception. This has created broader interest in what has traditionally been a fundamental subject. This book tackles matters which must be urgently addressed due to the mounting evidence of climate change.

As with the highly popular original, this new edition of Soil Sampling, Preparation, and Analysis provides students with an exceptionally clear description of the sampling and analysis methods most commonly used in modern soil laboratories around the world. What sets it apart as the first choice of professors is the grounding it offers in fundamental principles, professional protocols, and specific procedures. What makes it especially popular with students is that it spares them from having to tote large volumes for the sake of a page or two.

Fully revised to introduce the latest advances, the text is lucidly illustrated with original results garnered from years of hands-on experiments conducted by the author and his students.

In response to requests from active users of the first edition, these new features have been added:

Three new chapters on soil and plant test methods

A focus on testing and analysis limited to edaphology, as opposed to edaphology and pedology as a whole in the ecosystem

Information and insight reflecting the author's expertise on electron microscopy and nuclear magnetic resonance

Extensive revisions and expansion to include recent advances and shifting interests in the field

Soil Sampling, Preparation, and Analysis is divided into three sections: the first covers principles of soil sampling, sources of errors, and variability of results; the second explains common procedures for extraction and analysis in soil plant testing; and the last covers instrumentation.

While Professor Tan designed and further honed the book to serve the practical needs of students, with this volume he also provides them with an essential reference that willcontinue to serve them throughout their training and into their careers.

Learn the secrets of soil chemistry and its role in agriculture and the environment. Examine the fundamental laws of soil chemistry, how they affect dissolution, cation and anion exchange, and other reactions. Explore how water can form water-bridges and hydrogen bonding, the most common forces in adsorption, chelation, and more. Discover how electrical charges develop in soils creating electrochemical potentials forcing ions to move into the plant body through barriers such as root membranes, nourishing crops and plants. You can do all this and more with Principles of Soil Chemistry, Fourth Edition. Since the first edition published in 1982, this resource has made a name for itself as a textbook for upper level undergraduates and as a handy reference for professionals and scientists. This fourth edition reexamines the entire reach of soil chemistry while maintaining the clear, concise style that made previous editions so user-friendly. By completely revising, updating, and incorporating a decade's worth of new information, author Kim Tan has made this edition an entirely new and better book. See what's new in the Fourth Edition Reexamines atoms as the smallest particle that will enter into chemical reactions by probing new advances testifying the presence of subatomic particles and concepts such as string theory Underscores oxygen as the key element in soil air and atmosphere for life on earth Reevaluates the idea of transformation of orthoclase into albite by simple cation exchange reactions as misleading and bending scientific concepts of ion exchange over the limit of truth Examines the role of fertilizers, sulfur, pyrite, acid rain, and nitrogen fixation in soil acidity, underscoring the controversial effect of nitrification on increasing soil acidity over time Addresses the old and new approaches to humic acids by comparing the traditional operational concept against the currently proposed supramolecular and pseudomicellar concept Proposes soil organics, such as nucleic acids of DNA and others, to also adsorb cation ions held as diffusive ion clouds around the polymers Tan explains, in easy and simple language, the chemical make-up of the four soil constituents, their chemical reactions and interactions in soils as governed by basic chemical laws, and their importance in agriculture, industry, and the environment. He differentiates soil chemistry from geochemistry and physical chemistry. Containing more than 200 equations, 123 figures, and 38 tables, this popular text and resource supplies a comprehensive treatment of soil chemistry that builds a foundation for work in environmental pollution, organic and inorganic soil contamination, and potential ecological health and environmental health risks.