Properties and Management of Soils in the Tropics

Properties and Management of Soils in the Tropics PDF Author: Pedro A. Sanchez
Publisher: Cambridge University Press
ISBN: 1107176050
Category : Business & Economics
Languages : en
Pages : 685

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Book Description
Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.

Properties and Management of Soils in the Tropics

Properties and Management of Soils in the Tropics PDF Author: Pedro A. Sanchez
Publisher: Cambridge University Press
ISBN: 1107176050
Category : Business & Economics
Languages : en
Pages : 685

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Book Description
Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.

Pesticides in the Soil Environment

Pesticides in the Soil Environment PDF Author: Hwei-Hsien Cheng
Publisher:
ISBN: 9780891187912
Category : Pesticides
Languages : en
Pages : 0

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Book Description
Pesticides in the soil environment - an overview. Pesticide sources to the soil and principles of spray physics. The retention processes: mechanisms. Sorption estimates for modeling. Abiotic transformations in water, sediments, and soil. Biological transformation processes of pesticides. Volatilization and vapor transport processes. Organic chemical transport to Groundwater. Movement of pesticides into surface waters. Modeling pesticide fate in soils. Efficacy of soil-applied pesticides. Impact of pesticides on the environment. Risk/benefit and regulations. Chemical index.

Factors of Soil Formation

Factors of Soil Formation PDF Author: Hans Jenny
Publisher: Courier Corporation
ISBN: 0486681289
Category : Science
Languages : en
Pages : 322

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Book Description
Masterpiece offers a detailed discussion of the nature of the earth's terrestrial environment, and a method of subdividing and studying it. 1941 edition.

Soils, Climate and Society

Soils, Climate and Society PDF Author: John D. Wingard
Publisher: University Press of Colorado
ISBN: 1607322137
Category : Social Science
Languages : en
Pages : 254

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Book Description
Much recent archaeological research focuses on social forces as the impetus for cultural change. Soils, Climate and Society, however, focuses on the complex relationship between human populations and the physical environment, particularly the land--the foundation of agricultural production and, by extension, of agricultural peoples. The volume traces the origins of agriculture, the transition to agrarian societies, the sociocultural implications of agriculture, agriculture's effects on population, and the theory of carrying capacity, considering the relation of agriculture to the profound social changes that it wrought in the New World. Soil science plays a significant, though varied, role in each case study, and is the common component of each analysis. Soil chemistry is also of particular importance to several of the studies, as it determines the amount of food that can be produced in a particular soil and the effects of occupation or cultivation on that soil, thus having consequences for future cultivators. Soils, Climate and Society demonstrates that renewed investigation of agricultural production and demography can answer questions about the past, as well as stimulate further research. It will be of interest to scholars of archaeology, historical ecology and geography, and agricultural history.

Soil Mechanics for Unsaturated Soils

Soil Mechanics for Unsaturated Soils PDF Author: Delwyn G. Fredlund
Publisher: John Wiley & Sons
ISBN: 047185008X
Category : Technology & Engineering
Languages : en
Pages : 542

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Book Description
The principles and concepts for unsaturated soils are developed as extensions of saturated soils. Addresses problems where soils have a matric suction or where pore-water pressure is negative. Covers theory, measurement and use of the fundamental properties of unsaturated soils--permeability, shear strength and volume change. Includes a significant amount of case studies.

The Soil Resource

The Soil Resource PDF Author: Hans Jenny
Publisher: Springer Science & Business Media
ISBN: 1461261120
Category : Technology & Engineering
Languages : en
Pages : 392

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Book Description
change is simply described by the rate of income and rate of loss. Our home's energy budget, our firm's inventory, our nation's debt, and humanity's numbers all have accounts that change at rates that are equal to the inputs minus the outputs. Jenny's "system view" of the soil was carried into the fertile fields of Midwestern American prairies from the laboratories of Switzerland in the late 1920s. Jenny's rate equations provided the other paradigm or world view that, I recall, brought us to the threshold of systems ecology as it later evolved in the second half of the twentieth century. As if world renown in the specialties of pedology and soil chemistry were not enough for one lifetime, excerpts below remind us that Hans Jenny has also been a perceptive outdoor field ecologist since his early Alpine expeditions with Braun Blanquet in the mid 1920s. Jenny's ecosystem studies in the pygmy forest, a further classic example of a soil-plant system "run down" over hundreds of thousands of years since its origin, continue to occupy some of the vigorous retirement time near his farm in Mendocino County. But each specific, quantitative case study, and each research area conserved (with additional hard work) for further study by future generations, fits into Jenny's coherent world view. It is that view, and its legacies of discovery and of tangible landscape preserves, which we are privileged to share with their originator in this volume.

Soil Science Simplified

Soil Science Simplified PDF Author: Helmut Kohnke
Publisher: Waveland Press
ISBN: 1478609303
Category : Technology & Engineering
Languages : en
Pages : 173

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Book Description
A concise, inexpensive treatment! Soil Science Simplified, 4/E was written to acquaint students with the basic concepts and scientific principles of soils without the burden of an extensive study. This useful, well-priced handbook includes discussions of soil classification, soil morphology, and soil and the environment. In addition, a chapter on soil surveys helps readers understand soil resources and apply the information presented in soil surveys to managing the soil environment. Outstanding features: 1) provides essential coverage of factors of soil formation; 2) outlines the most current principles of soil taxonomy; 3) provides an assortment of helpful tables, maps, and line drawings; 4) includes an expanded glossary.

Soil and Civilization

Soil and Civilization PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 312

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Book Description


Collected Reprints

Collected Reprints PDF Author: James George Needham
Publisher:
ISBN:
Category : Dragonflies
Languages : en
Pages : 1030

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Book Description


Grouping of Soils on the Basis of Mechanical Analysis

Grouping of Soils on the Basis of Mechanical Analysis PDF Author: Royall Oscar Eugene Davis
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 16

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Book Description