Soils as a Resource
Unit (Chapter) Plan:
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Fast Does Soil Form?
and Distribution || Formation-The Major Factors || Formation Processes
|| Soil Chemistry || Soil Characteristics || Soil Classification || Soil
Soil Type and Land Use
Soil and Agriculture
|| The Dust Bowl || Land Management
and Deterioration of Soils
|| Soil Depletion, Deterioration, and Poisoning || Desertification and
Deforestation || Selenium Poisoning in the San Joaquin Valley
Keyword for Soil Science
Soil Erosion, and the Destruction of Environmental Assets
here for a list of bullet points to help you learn the topics of this chapter.
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(things you must do):
Chapter twelve of your textbook
use - http://www.nhQ.nrcs.usda.gov/landimeta/m51l6.html http://www.nhq.nrcs.usda.gov/landlindexicover
Learn more about The
Dust Bowl - http://drylands.nasm.edu: 1995lbow1.html
- http://www.weru.ksu.eduJDics/dust storms/
History - hrtp://www.usda.govlhistorv2/text4.htm
- http://www.ciesin.org/docs/002-479/002-479 .html
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Acquired (what you learned):
By the end
of this chapter you should be able to:
Describe the processes leading to the formation of soils.
Explain with your own words the terms soil, ped, clod, and polypedon as
used in soil science.
List five major factors controlling soil formation.
Give an account of the chemical processes that occur in soils and the influence
of climate on these processes.
Discuss the characteristics of soils that can be used as a basis for a
classification scheme. What are the problems associated with producing
a satisfactory classification of soils?
Briefly describe the Comprehensive Soil Classification System (CSCS or
so-called "seventh approximation") with examples of the terms used.
Give the requirements of a soil that ensure it is agriculturally productive
Explain how the utilization of land has varied within and between the countries
of the world. What important issues are raised by the subject of "land
Discus the what is the effect of varying natural conditions and human agencies
have on soil erosion, deterioration, and poisoning. What measures
can be taken to protect the soil resource?
"Desertification" is arguably the most terrible "disease" to affect mankind
in the latter half of the 20th Century. What is desertification, how is
it caused, and what measures can be taken to prevent its spread?
Explain the process involved in the decomposition of feldspar that leads
to the formation of clay.
Explain the formation of laterites.
Give the main features of histosols.
Give an account of alfisols.
Give the an explation on the formation of aridosols.
Explain the term ped.
Explain the formation of regolith.
Discuss teh formation of the A layer in a soil is a zone.
Give two feature of tropical soils.
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