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Author: Hari Eswaran
Publisher: CRC Press
Published: 2002-12-26
Total Pages: 278
ISBN-13: 1420040367
DOWNLOAD EBOOK →Developments in soil classification have accompanied parallel progress in our understanding of the soil system. However the theories behind the classifications and the purposes for which they were created have changed over time. The editors hope that this comprehensive synthesis will help to rally soil scientists around the world to develop an acce
Author: United States. Congress. Senate. Committee on Appropriations. Subcommittee on Treasury and General Government
Publisher: Natural Resources Conservation Service
Published: 2000
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOK →Agriculture Handbook No. 436. 2nd edition. Contains 2 maps, each measuring 18 x 27 in. One is entitled "Global Soil Regions, " and the other "Dominant Soil Orders and Suborders: Soil Taxonomy 1998, United States of America." Designed to aid in the understanding of the relationship among soils and between soils and the factors responsible for their character. Provides a means of communication for the discipline of soil science.
Author: S. W. Buol
Publisher: Iowa State Press
Published: 1973
Total Pages: 376
ISBN-13:
DOWNLOAD EBOOK →Morphology of soils; Soil micromorphology; Soil composition and characterization; Weathering and soil formation; Pedogenic processes: internal, soil-building processes; Soil environment: External factors of soil formation; Parent material: initial material of the solum; Relief and landscape factors of the soil and its environment; Contributions of climate to the total soil environment; Organisms: biological portion of the soil and its environment; Time as a factor of soil formation; Principles and historical development of soil classification; Modern soil classification systems; Entisols:recently formed soils: Vertisols: shrinking and swelling dark clay soils; In ceptisols: emleryonic soils with few diagnostic features; Aridisols: soils of arid regions; Mollisols: grassland soils of steppes and prairies; Spodosols: soils with subsoil, accumulations of sesquioxide and humus; Alfisols:high base status soils; Ultisols: low base status forest soils: Oxisols: sesquioxide - rihch, highly weathered soils of the intertropical regions; Histosols: organic soils.
Author: , National Committee on Soil and Terrain
Publisher: CSIRO PUBLISHING
Published: 2016-01-21
Total Pages: 133
ISBN-13: 1486304656
DOWNLOAD EBOOK →The Australian Soil Classification provides a framework for organising knowledge about Australian soils by allocating soils to classes via a key. Since its publication in 1996, this book has been widely adopted and formally endorsed as the official national system. It has provided a means of communication among scientists and land managers and has proven to be of particular value in land resource survey and research programs, environmental studies and education. Classification is a basic requirement of all science and needs to be periodically revised as knowledge increases. This Second Edition of The Australian Soil Classification includes updates from a working group of the National Committee on Soil and Terrain (NCST), especially in regards to new knowledge about acid sulfate soils (sulfidic materials). Modifications include expanding the classification to incorporate different kinds of sulfidic materials, the introduction of subaqueous soils as well as new Vertosol subgroups, new Hydrosol family criteria and the consistent use of the term reticulate. All soil orders except for Ferrosols and Sodosols are affected by the changes.
Author: Canadian Agricultural Services Coordinating Committee. Soil Classification Working Group
Publisher: NRC Research Press
Published: 1998
Total Pages: 210
ISBN-13: 9780660174044
DOWNLOAD EBOOK →This treatise begins with an introduction on the history of soil classification in Canada and discussion of the rationale for soil taxonomy. It then defines such terms as soil, pedon, and soil horizons before outlining the classification system along with identification keys. Chapters 4 through 13 describe the characteristics of the various soil orders and include information on distinguishing soils of one order from soils of other orders. Chapter 14 outlines criteria & guidelines used in differentiating classes in soil families and soil series categories. Chapter 15 provides information on distinguishing soil phases. Chapter 16 correlates Canadian soil taxonomy with other classification systems. Chapter 17 summarizes the main terminology used to describe soils at the landscape and pedon scales. The final chapter provides a system of landform classification for soil mapping.
Author: Shabbir A. Shahid
Publisher: Springer Science & Business Media
Published: 2013-02-15
Total Pages: 875
ISBN-13: 9400753322
DOWNLOAD EBOOK →As the world’s population continues to expand, maintaining and indeed increasing agricultural productivity is more important than ever, though it is also more difficult than ever in the face of changing weather patterns that in some cases are leading to aridity and desertification. The absence of scientific soil inventories, especially in arid areas, leads to mistaken decisions about soil use that, in the end, reduce a region’s capacity to feed its population, or to guarantee a clean water supply. Greater efficiency in soil use is possible when these resources are properly classified using international standards. Focusing on arid regions, this volume details soil classification from many countries. It is only once this information is properly assimilated by policymakers it becomes a foundation for informed decisions in land use planning for rational and sustainable uses.
Author: Jean-Paul Legros
Publisher: CRC Press
Published: 2012-09-20
Total Pages: 478
ISBN-13: 1466502436
DOWNLOAD EBOOK →This profusely illustrated book gives an exhaustive account of the principal types of soils of our planet. The "progressive descent of weathering fronts" model, recognized and used by eminent international scientists is the guiding principle of choice to link the observations and to give the reader a synthetic and coherent view of the differentiati
Author: Pavel Krasilnikov
Publisher: Routledge
Published: 2009-12-01
Total Pages: 450
ISBN-13: 1136546634
DOWNLOAD EBOOK →Soil classification and terminology are fundamental issues for the clear understanding and communication of the subject. However, while there are many national soil classification systems, these do not directly correlate with each other. This leads to confusion and great difficulty in undertaking comparative scientific research that draws on more than one system and in making sense of international scientific papers using a system that is unfamiliar to the reader. This book aims to clarify this position by describing and comparing different systems and evaluating them in the context of the World Reference Base (WRB) for Soil Resources. The latter was set up to resolve these problems by creating an international 'umbrella' system for soil correlation. All soil scientists should then classify soils using the WRB as well as their national systems. The book is a definitive and essential reference work for all students studying soils as part of life, earth or environmental sciences, as well as professional soil scientists. Published with International Union of Soil Sciences
Author: United States. Soil Conservation Service
Publisher:
Published: 1980
Total Pages: 44
ISBN-13:
DOWNLOAD EBOOK →Author: Waterways Experiment Station (U.S.)
Publisher:
Published: 1953
Total Pages: 20
ISBN-13:
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