Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/30156
Title: Rapid PXRF soil organic carbon and organic matter assessment using novel modular radiation detector assembly
Contributor(s): Ravansari, Roozbeh  (author); Wilson, Susan C  (author)orcid ; Wilson, Brian R  (author)orcid ; Tighe, Matthew  (author)orcid 
Publication Date: 2021-01-15
Early Online Version: 2020-09-22
DOI: 10.1016/j.geoderma.2020.114728
Handle Link: https://hdl.handle.net/1959.11/30156
Abstract: Soil organic matter and organic carbon are variables of critical environmental importance in terms of soil productivity and function, global food security, and climate change mitigation. Rapid and accurate assessment of these variables is central to national programs and international agreements. Portable X-ray fluorescence instruments are widely used to rapidly quantify and map soil elements, however quantification of light elements that constitute the majority of organic materials is not yet possible with this technique (e.g. carbon). We developed a novel attachment for portable X-ray fluorescence instrumentation enabling concurrent volumetric soil organic matter and organic carbon quantification during PXRF analyses. This primary prototype outperformed more expensive visible-near infrared instrumentation using parsimonious soil specific simple linear regression (R2 ranged 0.85–0.97) enabling rapid, parallel, nondestructive, cost-effective acquisition of soil elemental concentrations together with soil organic carbon and soil organic matter data.
Publication Type: Journal Article
Source of Publication: Geoderma, v.382, p. 1-8
Publisher: Elsevier BV
Place of Publication: Netherlands
ISSN: 1872-6259
0016-7061
Fields of Research (FoR) 2008: 050206 Environmental Monitoring
050304 Soil Chemistry (excl. Carbon Sequestration Science)
050205 Environmental Management
Fields of Research (FoR) 2020: 410604 Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)
410404 Environmental management
Socio-Economic Objective (SEO) 2008: 960501 Ecosystem Assessment and Management at Regional or Larger Scales
960911 Urban and Industrial Land Management
Socio-Economic Objective (SEO) 2020: 180403 Assessment and management of Antarctic and Southern Ocean ecosystems
180603 Evaluation, allocation, and impacts of land use
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science

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