This book presents methods for investigating poorly lithified soils under field and laboratory conditions. It also provides laws governing the deformation of such soils under loading in terms of non-linear relationships. Examples have been given to illustrate the method of determining viscoplastic flow and strength of soils as a function of time. The author - an award winner of the Government of the former USSR - has more than 50 publications to her credit.
What are oils? Oils are liquid fats. They give a rich flavor to foods they are found in, such as nuts, seeds, and fish. Brian P. Clearys goofy verse and Martin Goneaus humorous illustrations give young readers a slick bunch of examples of oils and foods rich in healthy oils. They also highlight some health benefits of eating a limited amount of oil. Oils and oil-rich foods are printed in color for easy identification. Enjoy this flavorful serving of a book!
Soil organic matter is a reservoir for plant nutrients, provides water-holding capacity, stabilizes soil structure against compaction and erosion, and thus determines soil productivity. All agriculture to some degree depends on soil organic matter. It has long been known that soil organic matter declines when land is taken into cultivation, and that the productivity of new agricultural land is governed by fertility contributions from decomposing natural organic matter. The expansion of agriculture to ever new and more fragile lands, particularly in tropical and developing regions, causes environmental degradation with local effects on soil quality, regional effects on landscape integrity and water quality, and global effects on carbon cycles and the atmosphere.
This book summarizes current knowledge of the properties and dynamics of soil organic matter in the tropics, its role in determining soil quality, its stability and turnover, and the options for management in the context of tropical landuse systems, for a readership of resource scientists, economists and advanced students. Maintenance of organic matter is critical for preventing land degradation. Case studies and practical applications are therefore an important part of the book, as are the exploration of future directions in research and management.