Many technical terms are used throughout this report in the keys and definitions. These technical terms, printed here in italics, are defined in this book in the section Diagnostic horizons and other differentiae.
Other technical terms are defined in other books:
- Horizon notations are defined by Clayden and Hewitt (1989).
- Soil morphology terms are defined by Milne et al. (1991).
- Classes of the US Soil Taxonomy are defined by Soil Survey Staff (1999).
- Soil colours are defined by Munsell Color Company (1975).
- Soil mineralogy classes are defined by Whitton and Childs (1989) or Childs and Whitton (1990). Note that the soil mineralogy class names given here are based on the following control section: 25 cm to 100 cm or to a lithic or paralithic contact if shallower.
- Soil chemical terms are explained and the analytical methods are described by Blakemore et al. (1987). Note that soil pH measurements are made in water with a ratio of 1 part of soil to 2.5 parts of water, by weight.
- Soil physical terms are explained and the analytical methods are described by Gradwell and Birrell (1979).
- Many other soil science concepts and technical terms are explained, in a New Zealand context, by McLaren and Cameron (1990).
The following abbreviations are used for soil chemical terms.
CEC – Cation exchange capacity.
ECEC – Effective cation exchange capacity, which is the CEC at natural field pH, estimated by the sum of basic cations + KCl-extractable aluminium.
P retention – Phosphate retention.
Blakemore LC, Searle PL, Daly BK 1987. Methods for chemical analysis of soils. [Internet]. Lower Hutt, New Zealand.
https://doi.org/10.7931/DL1-SBSR-80
Childs CW, Whitton JS 1990. A proposed revision of the key to mineralogy classes of
Soil Taxonomy (1975). In: Transactions 14th
International Congress of
Soil Science,
Kyoto,
Japan,
August 1990,
Volume VII [Internet]. Vol. VII. Kyoto, Japan: IUSS; p. 10–16.
https://old.iuss.org/meetings-events/world-soil-congress/index.html
Clayden B, Hewitt AE 1989. Horizon notation for new zealand soils. [Internet]. Lower Hutt, New Zealand.
https://landcareresearch.on.worldcat.org/oclc/154214630
Gradwell MW, Birrell KS 1979. C. Methods for physical analysis of soils. [Internet]. Lower Hutt, New Zealand.
https://doi.org/10.7931/DL1-SBSR-10C
McLaren RG, Cameron KC 1990. Soil science: An introduction to the properties and management of
New Zealand soils. [Internet]. Auckland; New York: Oxford University Press.
https://landcareresearch.on.worldcat.org/oclc/22444423
Milne JDG, Clayden B, Singleton PL, Wilson AD 1991. Soil description handbook. [Internet]. 1st ed. Lower Hutt, New Zealand: New Zealand Department of Scientific; Industrial Research.
https://doi.org/10.7931/DL1JG6
Munsell Color Company 1975. Munsell soil color charts. Baltimore, M.D.: Munsell Color Company.
Soil Survey Staff 1999.
Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. [Internet]. 2nd ed. Washington D.C., USA: United States Department of Agriculture.
https://www.nrcs.usda.gov/resources/guides-and-instructions/soil-taxonomy
Whitton JS, Childs CW 1989. The
New Zealand experience in applying the
Soil Taxonomy (1975) key to mineralogy classes, and, a proposed revision of the
Key to mineralogy classes. [Internet]. Lower Hutt, New Zealand:
New Zealand Department of Scientific and Industrial Research.
https://doi.org/10.7931/DL1-LAB-CM14