HUMUS TYPE DISCRIMINATION FROM MASS SPECTRA BY A SIMPLIFIED STATISTICAL TREATMENT
作者:
J. M. BRACEWELL,
G. W. ROBERTSON,
G. J. M. STEPHEN,
期刊:
Journal of Soil Science
(WILEY Available online 1975)
卷期:
Volume 26,
issue 1
页码: 62-65
ISSN:0022-4588
年代: 1975
DOI:10.1111/j.1365-2389.1975.tb01930.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
SummaryThe calculation of a discriminator between mull and mor humus types from the mass spectra of soil pyrolysis products, described earlier by Bracewell and Robertson (1973), used IIO normalized peak heights; these can be reduced to thirteen and the calculation simplified. Assumption of class for some soils, which was necessary in the previous method of obtaining the pattern classifier, has been obviated by the use of principal components analysis.
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