Author: A. S. R. Juo
Publisher: Oxford University Press on Demand
Release Date: 2003
1. Introduction. 2. Mineralogy. 3. Soil Chemistry. 4. Soil Physics. 5. Soil Biology and Microbiology. 6. Soil Fertility. 7. Soil Formation and Classification. 8. Major Soils of the Tropics: A Descriptive Classification Based on Clay Mineralogy. 9. Soil Management: An Overview. 10. Properties and Management of Kaolinitic Soils. 11. Properties and Management of Oxidic Soils. 12. Properties and Management of Smectitic Soils. 13. Properties and Management of Allophanic Soils. 14. Soils and Sustainable Agriculture.
The proceeding of tropical agriculture is a proceeding of papers presented at the International Conference on Tropical Agriculture. Sustainability of agriculture production system is an important issue in the world, which includes all aspects of sustainable criteria, such as technical, socio-economic, and ecological aspects. This book covers sustainable tropical agriculture, sustainable tropical fisheries, sustainable tropical animal production, sustainable tropical forestry, tropical animal health, and Innovative and Emerging Food Technology and Management. The most common, challenging issues in plant, animal and fisheries production in the tropics are climate change, inefficiency production system, low technological innovation, decreasing environment quality, and the outbreak risk of pest and diseases. These issues are closely linked to the socio-economic condition of farmers as small-scale farms are dominant in this area. In addition, post-harvest technology is crucial to maintaining the high quality of products after on farm production. This volume provides the recent research and development on tropical agriculture production systems for plant, terrestrial animal and aquatic animal to establish sustainable agriculture production in the tropics.
Author: Darrell A. Posey
Publisher: Columbia University Press
Release Date: 2006-07-11
From the pre-Columbian era to the present, native Amazonians have shaped the land around them, emphasizing utilization, conservation, and sustainability. These priorities stand in stark contrast to colonial and contemporary exploitation of Amazonia by outside interests. With essays from environmental scientists, botanists, and anthropologists, this volume explores the various effects of human development on Amazonia. The contributors argue that by protecting and drawing on local knowledge and values, further environmental ruin can be avoided.
Author: Christopher Martius
Publisher: Springer Science & Business Media
Release Date: 2013-11-11
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.
Author: Pan Ming Huang
Publisher: CRC Press
Release Date: 2011-11-17
An evolving, living organic/inorganic covering, soil is in dynamic equilibrium with the atmosphere above, the biosphere within, and the geology below. It acts as an anchor for roots, a purveyor of water and nutrients, a residence for a vast community of microorganisms and animals, a sanitizer of the environment, and a source of raw materials for construction and manufacturing. To develop lasting solutions to the challenges of balanced use and stewardship of the Earth, we require a fundamental understanding of soil—from its elastic, porous three-phase system to its components, processes, and reactions. Handbook of Soil Sciences: Properties and Processes, Second Edition is the first of two volumes that form a comprehensive reference on the discipline of soil science. Completely revised and updated to reflect the current state of knowledge, this volume covers the traditional areas of soil science: soil physics, soil chemistry, soil mineralogy, soil biology and biochemistry, and pedology. Contributors discuss the application of physical principles to characterize the soil system and mass and energy transport processes within the critical zone. They present significant advances in soil chemistry; describe how minerals are formed and transformed; and provide an introduction to the soil biota. They also examine geomorphology, land use, hydropedology, and subaqueous soils as well as the classification and digital mapping of soil. Critical elements addressed in each section include: Descriptions of concepts and theories Definitions, approaches, methodologies, and procedures Data in tabular and figure format Extensive references This cohesive handbook provides a thorough understanding of soil science principles and practices based on a rigorous, complete, and up-to-date treatment of the subject matter compiled by leading scientists. It is a resource rich in data, offering professional soil scientists, agronomists, engineers, ecologists, biologists, naturalists, and students their first point of entry into a particular aspect of the soil sciences.
Author: E. K. Sadanandan Nambiar
Release Date: 1997
Genre: Tree farms
Plantations for the tropics their, extent and nature. Genetic resources for plantation forestry. The biophysical environment. Soils of the tropics and their management for plantation forestry. Hydrology of forest platations in the tropics Dynamics of leaf and canopy development. The ecophysiological basis for productivity in the tropics. Roots and Mycorrhizas in plantation ecosystems. Nitrogen fixation in tropical forest plantations. Dynamics of nutrient supply in plantation soils. Soil and stand management for short-rotation plantations. Stand development and productivity. Origanic matter accretion, decomposition and mineralisation. Reforestation of salt-affected and acid soils. Towards sustained productivity and acid soils. Towards sustained productivity of tropical plantations: science and pratictice.
Author: John Keith Syers
Release Date: 1994-09-01
Contributors Preface 1. Soil Science and Sustainable Land Management, D. J. Greenland 2. Evaluation of the Soil and Land Resource, M. Latham 3. Proposals for Quantitative Criteria in the Management of Sustainable Agricultural Systems, J. R. O'Callaghan and G. C. L. Wyseure 4. Soil Erosion and Conservation: A Place for Soil Science?, M. Stocking 5. Agroforestry Practices to Control Runoff and Erosion on Steeplands in Ilocos Norte, Philippines, E. O. Agustin and S. Nortcliff 6. The Quaternary Legacy in the Tropics: A Fundamental Property of the Land Resource, M. F. Thomas 7. Effects of Soil Erosion and Sedimentation on Land Quality: Defining Pedogenetic Baselines in the Dondoa District of Tanzania, R. W. Payton and E. K. Shishira 8. Sustainable Regeneration of Surface Tilth in Zimbabwean Vertisols Through Water Management, J. Hussein and M. A. Adey 9. Agrohydrological Modelling: A Tool for Sustainable Development of Land Resources, J. W. Gowing and G. C. L. Wyseure 10. Extending the Growing Season by Efficient Use of Rainfall, J. Tabi Owono, D. A. Rose and R. S. Shiel 11. The Role of Soil Organisms in the Sustainability of Tropical Cropping Systems, M. J. Swift, et al. 12. Can Biological Nitrogen Fixation Sustain Agriculture in the Tropics? 13. Improving the Agricultural Productivity of the Soils of Northeast Thailand Through Soil Organic Matter Management, A. G. O'Donnell, et al. 14. Soil Organic Matter Management in Thailand, J. S. Watson 15. A Diagnostic Approach to Solving Soil Fertility Problems in the Tropics, M. E. Sumner and K. Hylton 16. Physical and Chemical Constraints to Sustainable Soil Use Under Rainfed Conditions in the Humid Tropics of Southeast Asia, I. R. Willett 17. The Use of Simplified Nutrient Balances at Farm Level to Determine Boundary Conditions for Sustainable Production, F. C. T. Guiking, D. M. Jansen, and L. O. Fresco 18. The Economic Context of Soil Science, J. Lingard 19. Soil Science Research in Developing Countries: Towards a Holistic Approach, M. Catizzone 20. Soil Science and Better Land Use in the Tropics, A. J. Bennett Index
Author: R. Lal
Publisher: United Nations University Press
Release Date: 1995-01-01
Genre: Technology & Engineering
Misuse of the soil & inappropriate agricultural systems are causing degradation of the humid tropical eco-region & perpetuating food shortages, malnutrition & poor standards of living. This publication presents research information on scientifically proven methods of deforestation for conversion to agricultural land use, & soil & crop management systems that allow for the sustained use of soil & water resources in the humid tropics. It cites examples of appropriate techniques with explanations of their impact on production, soil quality & the environment. Information is also provided on the characteristics of an improved farming system; new land development; run-off management & erosion control; & nutrient management. It also outlines research & development priorities.
Author: Martin Fey
Publisher: Cambridge University Press
Release Date: 2010-02-16
Genre: Technology & Engineering
Soils of South Africa is the first book in seventy years that provides a comprehensive account of South African soils. The book arranges more than seventy soil forms into fourteen groups and then provides, for each group: • maps showing their distribution and abundance throughout South Africa • descriptions of morphological, chemical and physical properties • a detailed account of classification and its correlation with international systems • a discussion of soil genesis which includes a review of relevant research papers • appraisal of soil quality from a land use perspective as well as for its ecological significance • illustrative examples of soil profiles with analytical data and accompanying interpretations. There is also a fascinating account of the special relationship that exists between South African animals and soil environments. Soils of South Africa should interest students and researchers in the earth, environmental and biological sciences, as well as environmental practitioners, farmers, foresters and civil engineers.
Some pioneers in soil research such as Müller and Kubiëna were as much biologists as they were soil scientists and the legendary biologist Charles Darwin was foresighted in recognizing the earthworms as instrumental in reworking the soil, thereby forming what he called "vegetable mould". Still, soil science has largely been the realm of physicists and chemists over the past decades. Whatever the reason, this picture is rapidly changing. Until recently, research on the transport and transformation of elements in soil was often concerned with either soil biota/plant relationships or with soil structure/plant relationships, if the biota were considered at all, but very few studies explicitly took the interrelationships between soil structure and soil biota into account. The conference on Soil Structure/Soil Biota Interrelationships, held at Wageningen, The Netherlands, 24-28 November 1991, was meant to bridge that gap, focussing on methods of research, organized in three levels: features, processes and effects. The proceedings of the conference are testimony of the need to intertwine the biological, morphological, physical and chemical disciplines in soil research to understand better and forecast soil properties and processes as related to land use for agricultural and other purposes. This book should be of particular interest to soil scientists and ecologists who feel the need for a cross-disciplinary approach in soils research. It should also be a rich source of teaching material for courses in soil science and soil ecology at graduate level and above, with ample reference to studies on land use as related to agriculture and the environment.