The application of XRF spectrometry and chemometrics for the assessment of impacted soil environments.

Falconer, D 2011, The application of XRF spectrometry and chemometrics for the assessment of impacted soil environments., Doctor of Philosophy (PhD), Applied Sciences, RMIT University.


Document type: Thesis
Collection: Theses

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Falconer.pdf Thesis Click to show the corresponding preview/stream application/pdf;... 3.33MB
III_Site_Images_Chapter_3.zip Site Images, Chapter 3 - Zip File Click to show the corresponding preview/stream application/zip 32.76MB
III_Site_Images_Chapter_5_1.zip Site Images, Chapter 5.1 - Zip File Click to show the corresponding preview/stream application/zip 22.72MB
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III_Site_Images_Chapter_6_3.zip Site Images, Chapter 6.3 - Zip File Click to show the corresponding preview/stream application/zip 75.46MB
III_Site_Images_Chapter_7.zip Site Images, Chapter 7 - Zip File Click to show the corresponding preview/stream application/zip 64.14MB
II_XRF_Raw_Data.zip XRF Raw Data - Zip File Click to show the corresponding preview/stream application/zip 2.55MB
I_Elemental_Calibration_Data.zip Elemental Calibration Data - Zip File Click to show the corresponding preview/stream application/zip 139.79KB
Title The application of XRF spectrometry and chemometrics for the assessment of impacted soil environments.
Author(s) Falconer, D
Year 2011
Abstract The complexities of soil can result in an arduous and time consuming task of analysis and data interpretation when routine methodology is applied. Furthermore, the application of univariate data interpretation techniques on large data sets can often result in important information remaining hidden. In this research, the combination of XRF spectrometry and multivariate chemometric techniques was investigated as an alternative approach for the assessment of complex soil compositional data in impacted soil environments. Vineyards with issues that could be the result of an altered soil environment were used as investigation sites through consultation with technical committee members of the Mornington Peninsula Vignerons Association (MPVA).

The XRF/chemometric combination was successfully applied to a variety of situations in viticulture where potentially impacted soil environments occurred, including changes in management practices, anomalies in remote sensing data and situations where unresolved growth issues occurred. In these investigations, trends and patterns in soil composition were identified that allowed for elucidation of impacted soil environments in a broad range of situations encountered in viticulture.

The outcomes of the investigations demonstrated that the XRF/chemometrics combination is an innovative adaptation for soil analytical methodology that is effective for the assessment of altered soil environments. This was due to the ability to gather large sets of soil compositional data and identify the important trends and patterns including hidden information that univariate interpretation techniques may not identify.

There is considerable potential for the techniques developed in this research to be incorporated into soil analytical methodology where in the important areas of soil research, land contamination and crop production where the nature and causes of altered soil compositions may need to be determined.
Degree Doctor of Philosophy (PhD)
Institution RMIT University
School, Department or Centre Applied Sciences
Keyword(s) XRF
chemometrics
soil
management
multivariate analysis
impacted soils
PCA
PARAFAC
Tucker
viticulture
agriculture
crop production
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