References

Avery, B. W. 1980. Soil Classification for England and Wales (Higher Categories). Soil Survey Technical Monograph 14. Rothamstead Experimental Station, Harpenden, England: Soil Survey of England; Wales.

Blakemore, L. C., P. L. Searle, and B. K. Daly. 1987. “Methods for Chemical Analysis of Soils.” Lower Hutt, New Zealand. http://doi.org.landcareresearch.idm.oclc.org/10.7931/DL1-SBSR-80.

Childs, C. W. 1981. “Field Tests for Ferrous Iron and Ferric-Organic Complexes (on Exchange Sites or in Water-Soluble Forms) in Soils.” Soil Research 19 (2): 175–80. https://doi.org/10.1071/SR9810175.

Childs, C. W., R. W. P. Palmer, and C. W. Ross. 1990. “Thick Iron Oxide Pans in Soils of Taranaki, New Zealand.” Soil Research 28 (2): 245–57. https://doi.org/10.1071/SR9900245.

Clayden, B., B. K. Daly, R. Lee, and G. Mew. 1990. “The Nature, Occurrence, and Genesis of Placic Horizons.” In Fifth International Soil Correlation Meeting (ISCOM), 88–104. Lincoln, Nebraska, USA: USDA, Soil Conservation Service.

Clayden, B., and A. E. Hewitt. 1989. “Horizon Notation for New Zealand Soils.” Lower Hutt, New Zealand. https://landcareresearch.on.worldcat.org/oclc/154214630.

Cline, Marlin G. 1949. “Basic Principles of Soil Classification.” Soil Science 67 (2): 81–91. https://doi.org/10.1097/00010694-194902000-00002.

Eden, D. N. 1992. “A Standard Method for Determining Volcanic Glass Content in Andisols.” https://doi.org/10.7931/DL1-DLRSR-2.

Fieldes, Morice, and K. W. Perrott. 1966. “The Nature of Allophane in Soils, Part 3 - Rapid Field and Laboratory Test for Allophane.” New Zealand Journal of Science 9: 623–29.

Froggatt, P. C., and D. J. Lowe. 1990. “A Review of Late Quaternary Silicic and Some Other Tephra Formations from New Zealand: Their Stratigraphy, Nomenclature, Distribution, Volume, and Age.” New Zealand Journal of Geology and Geophysics 33 (1): 89–109. https://doi.org/10.1080/00288306.1990.10427576.

Gradwell, M. W., and K. S. Birrell. 1979. “C. Methods for Physical Analysis of Soils.” Lower Hutt, New Zealand. https://doi.org/10.7931/DL1-SBSR-10C.

Griffiths, E. 1991. “Assessing Soil Permeability Class from Soil Morphology.” Havelock North, New Zealand. http://digitallibrary.landcareresearch.co.nz.landcareresearch.idm.oclc.org/digital/collection/p20022coll26/id/2/rec/23.

Hewitt, A. E. 1982. “Decisions in the Establishment of Soil Series.” PhD thesis, Ithaca, New York, USA. https://landcareresearch.on.worldcat.org/oclc/1129896729.

———. 1984. “The NZ Soil Classification Revision: Taylor’s Patch Reworked.” New Zealand Soil News 32 (6): 220–29. https://doi.org/10.7931/DL30-1984_VOL32_6_ORC.

———. 1989. “New Zealand Soil Classification (v. 2.0).” Dunedin, New Zealand.

Johnson, William M. 1963. “The Pedon and the Polypedon.” Soil Science Society of America Journal 27 (2): 212–15. https://doi.org/10.2136/sssaj1963.03615995002700020034x.

Laffan, M. D. 1979. “A Comment on the Identification of the Lithic Contact (USDA Soil Taxonomy) in Soils Formed from Greywacke in the Marlborough Sounds.” New Zealand Soil News 27 (2): 70–71. https://doi.org/10.7931/DL30-1979_VOL27_2_ORC.

Leamy, M. L., B. Clayden, and A. E. Hewitt. 1983. “Soil Classification in the n. Z. Soil Bureau.” New Zealand Soil News 31 (6): 183–85. https://doi.org/10.7931/DL30-1983_VOL31_6_ORC.

McLaren, R. G., and K. C. Cameron. 1990. Soil Science: An Introduction to the Properties and Management of New Zealand Soils. Auckland; New York: Oxford University Press. https://landcareresearch.on.worldcat.org/oclc/22444423.

McQueen, David J. 1981. “A New Method of Aggregate Stability Measurement.” New Zealand Soil News 29 (4): 127–32. https://doi.org/10.7931/DL30-1981_VOL29_4_ORC.

Milne, J. D. G., B. Clayden, P. L. Singleton, and A. D. Wilson. 1991. Soil Description Handbook. 1st ed. Lower Hutt, New Zealand: New Zealand Department of Scientific; Industrial Research. https://landcareresearch.on.worldcat.org/oclc/1255392569.

Munsell Color Company. 1975. Munsell Soil Color Charts. Baltimore, M.D.: Munsell Color Company.

Parfitt, R. L. 1984. “A Proposed Classification of Yellow-Brown Loams and Yellow-Brown Pumice Soils. I, the Boundary with Other Soils at the Highest Category.” Lower Hutt, New Zealand. http://doi.org.landcareresearch.idm.oclc.org/10.7931/DL1-LAB-CM05.

Parfitt, R. L., and B. Clayden. 1991. “Andisols the Development of a New Order in Soil Taxonomy.” Geoderma 49 (3): 181–98. https://doi.org/10.1016/0016-7061(91)90075-5.

Soil Survey Staff. 1999. Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys. 2nd ed. Agriculture Handbook 436. Washington D.C., USA: United States Department of Agriculture. https://www.nrcs.usda.gov/wps/portal/nrcs/main/soils/survey/class/taxonomy/.

Taylor, N. H. 1948. “Soil Map of New Zealand.” https://doi.org/10.7931/hdbc-9662.

Taylor, N. H., and J. E. Cox. 1957. “The Soil Pattern of New Zealand.” Wellington, New Zealand.

Taylor, N. H., and I. J. Pohlen. 1962. “Classification of New Zealand Soils.” In, 15–45. 26(1). Wellington, New Zealand: New Zealand Department of Scientific; Industrial Research. https://doi.org/10.7931/dl1-sbb-026-1.

Whitton, J. S., and Cyril Walter Childs. 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.” Lower Hutt, New Zealand. http://doi.org/10.7931/DL1-LAB-CM14.

Wilson, A. D. 1987. “Classification of Red and Brown Loams and Brown Granular Soils.” Lower Hutt, New Zealand.