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Related topics
Background information on soils
Soil health management
Soil conservation (erosion
control, tillage, moisture conservation)
Integrated nutrient management
(INM): Overview
INM: Replenishing soil organic
matter
INM: Replenishing mineral nutrients
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Relevant literature
Available in PDF format
 Scientific
references: background information on soils
Available on the Internet
Soil formation
- Website: Soil
and Health Library
- Reference: Jenny, Hans. 1994. Factors of Soil Formation:
A System of Quantitative Pedology. New York, Dover. (PDF;
4.88 MB)
- Description: This website's 'Agricultural Library' contains
a full text version of a well-written book on soil formation
by a world-renowned UC Berkeley soil scientist, Hans Jenny.
Separate chapters cover the influence of time, parent material,
topography, climate, and living organisms.
Major soil groups
- Website: World
Soils Resources Report 94
- Reference: Driessen, P. 2001. Lecture Notes on the Major
Soils of the World. World Soils Resources Report 94, Wageningen
- Description: Lecture notes on the Soil Groups recognized
by the World Reference Base for Soil Resources (WRB). "The
WRB Reference Soil Groups are assembled in ten 'sets', each
characterized by 'dominant identifiers,' i.e. soil forming
factor(s) that most clearly condition soil formation. Each
Reference Soil Group is discussed with due attention to
diagnostics, regional distribution, association with other
Reference Soil Groups, genesis, characteristics (morphological,
hydrological, physical and chemical), land use and management."
Soil biology and ecology
- Website: Soil
Biology Primer
- Description: This is an online version of the excellent
Soil Biology Primer, written by Elaine Ingham, Andrew Moldenke,
and Clive Edwards. The primer discusses "the living
component of soil and how it contributes to agricultural
productivity, and air and water quality. (It) includes units
describing the soil food web and its relationship to soil
health, and units about bacteria, fungi, protozoa, nematodes,
arthropods, and earthworms. (It) is suitable for a broad
audience."
Terminology and Vocabulary
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Relevant links
Soil quality
- Website: Soil
Quality Institute
- Description: The Soil Quality Institute is affiliated
with the Natural Resource Conservation Service of the U.S.
Department of Agriculture. Their aim "is to cooperate with
partners in the development, acquisition and dissemination
of soil quality information and technology to help people
conserve and sustain natural resources and the environment."
The site's information is organized into four sections:
Soil quality concepts, Soil quality assessment, soil quality
management, and soil quality resources; each section starts
with a topic review and contains additional soil quality
documents and information sheets.
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