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Micromorphology of a Marshall Silty Clay Loam, a Webster Clay, and a Nacogdoches Sandy Loam Profile
Author(s) -
Johnston J. R.
Publication year - 1940
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1940.036159950004000c0109x
Subject(s) - loam , service (business) , clay soil , state (computer science) , citation , archaeology , geology , library science , geography , soil science , mathematics , soil water , computer science , business , algorithm , marketing
A NY field of scientific endeavor requires a schematic • ' * • and accurate arrangement of the items under observation in some specific order. A system of classification is necessary, both for the scientist and the layman, whether the field be bacteriology, botany, mineralogy, soils, or any other branch of the natural sciences. Some system of classification precedes any great progress in either the scientific or applied phases of a given science. The botanist had a system of classification for plants several decades before the pedologist had one for soils. At the outset the plant taxonomist relied on macroscopic structures; however, on the advent of the microscope the botanist had a new tool and he proceeded to classify plants by the use of microscopic structures as well as macroscopic ones. Recent advancements made by the mineralogist and micropedologist in the development of microscopic technics indicates that the microscope can be an aid in the field of genesis, morphology and classification of soils.