Cited by 373Spectroscopy and Chemometric AnalysesSoil Geostatistics and MappingRemote Sensing in Agriculture

Simultaneous estimation of several soil properties by ultra-violet, visible, and near-infrared reflectance spectroscopy

Islam, Kamrunnahar, Singh, Balwant, McBratney, Alex·2003·Australian Journal of Soil Research

Abstract

Fast and convenient soil analytical techniques are needed for soil quality assessment and precision soil management. Spectroscopy in the ultraviolet (UV, 250–400 nm), visible (VIS, 400–700 nm), and near-infrared (NIR, 700–2500 nm) ranges allows rapid acquisition of soil information at quantitative, and qualitative or indicator, levels for use in agriculture and environmental monitoring. The main objective of this study was to evaluate the ability of reflectance spectroscopy in the UV, VIS, and NIR ranges to predict several soil properties simultaneously. Soil samples (161 surface and subsurface) were used for simultaneous estimation of pH, electrical conductivity (EC), air-dry gravimetric water content, organic carbon (OC), free iron, clay, sand, and silt contents, cation exchange capacity (CEC), and exchangeable calcium (Ca), magnesium (Mg), potassium (K), and sodium (Na). Principal component regression analyses (PCA) were used to develop calibration equations between the reflectance spectral data and measured values for the above soil properties obtained by traditional laboratory methods. By using randomly selected calibration and validation sets of samples, PCA models were able to successfully predict pH, OC, air-dry gravimetric water content, clay, CEC, exchangeable Ca, and exchangeable Mg of soil samples. The predictions, however, were poor for EC, free iron, sand, silt, exchangeable K, and exchangeable Na. The study shows that reflectance spectroscopy in the UV–VIS–NIR range has the potential for the rapid simultaneous prediction of several soil properties.

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Crossref · 10.1071/sr02137

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21 of 21 references verified0 citation errors · 0 not checkable

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  • Calibration efficiency of spectroscopic techniques varies between studies and parameters considered.

    “Several studies showed that calibration e ffi ciency varies between studies and parameters considered”

    From Soil quality – A critical review (2018) · cites this paper as Islam et al., 2003

  • Spectroscopic estimates are always less precise than traditional analytical methods.

    “Through their nature, spectroscopic estimates are always less precise than traditional analytical methods (Islam et al., 2003).”

    From Soil quality – A critical review (2018) · cites this paper as Islam et al., 2003

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Authors
Islam, K., Singh, B., & McBratney, A.
Venue
Australian Journal of Soil Research
Published
2003-10-20
Volume
41
Issue
6
Pages
1101-1114
ISSN
  • 0004-9573 (ISSN-L)
  • 1446-568X
OpenAlex
W2158551840
Cited by
373
References
21
Citations by year
2026: 5 · 2025: 14 · 2024: 20 · 2023: 15 · 2022: 18 · 2021: 26 · 2020: 26 · 2019: 24 · 2018: 26 · 2017: 22 · 2016: 14 · 2015: 18 · 2014: 24 · 2013: 14 · 2012: 10
FWCI
4.60
Type
journal article
Language
en
Open access
closed
Locations
Soil Research (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Analytical Chemistry › Spectroscopy and Chemometric Analyses
  • Physical Sciences › Environmental Science › Environmental Engineering › Soil Geostatistics and Mapping
  • Physical Sciences › Environmental Science › Ecology › Remote Sensing in Agriculture
Keywords
soil reflectance spectroscopy, soil pH, soil organic carbon, soil cation exchange capacity, exchangeable cations, soil electrical conductivity, soil moisture, soil texture, calibration models

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