2002
DOI: 10.2136/sssaj2002.0988
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Development of Reflectance Spectral Libraries for Characterization of Soil Properties

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Cited by 358 publications
(425 citation statements)
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“…Principal component analysis showed that PC 2 and PC 4 explained soil variability well for CEC, Mg, O.M., K, and pH. Shepherd and Walsh [2002] used spectral library in estimating soil properties. Their work was based on the analysis of diffusion reflectance spectroscopy.…”
Section: Background and Objectivesmentioning
confidence: 99%
“…Principal component analysis showed that PC 2 and PC 4 explained soil variability well for CEC, Mg, O.M., K, and pH. Shepherd and Walsh [2002] used spectral library in estimating soil properties. Their work was based on the analysis of diffusion reflectance spectroscopy.…”
Section: Background and Objectivesmentioning
confidence: 99%
“…In particular, reflectance spectroscopy can be used for nondestructive assessment of soil and crop physical and biochemical properties Moron 2003, 2006;Chang et al 2001;Dunn et al 2002;Shepherd and Walsh 2002;Shepherd et al 2003). Although the NIR range (800-2,500 nm) is still the most widely used, midinfrared spectroscopy is becoming increasingly common due to the specificity of the absorbance bands in that spectral range (Stuart 1997).…”
Section: Soil Identificationmentioning
confidence: 99%
“…Using technique of Infrared spectroscopy research on air-dried ground soil samples has shown predictions of soil clay content with R 2 values ranging from 0.56 to 0.91 and RMSE ranging from 23 to 11 g kg -1 (Ben- Banin 1990, 1995;Janik et al 1998;Shepherd and Walsh 2002;Islam et al 2003;Sorensen and Dalsgaard 2005;Brown et al 2006). An infrared spectra data based calibration model for determination of clay in soil was developed and tested in practice.…”
Section: Soil Claysmentioning
confidence: 99%
“…A complimentary approach that retains a focus on soil properties is use of visible/near infrared reflectance spectroscopy (VNIRS) for rapid, low-cost, accurate inference of soil properties. The research literature increasingly supports the conclusion that VNIRS spectra (high resolution diffuse reflectance signatures in the visible [350-750 nm] and near infrared [750-2500 nm] regions; Johnston and Aochi, 1996) can be used to acquire substantial information about mineralogical, physical and chemical properties of plant and soil samples (Ben Dor and Banin, 1995;Reeves et al, 1999;Chang et al, 2001;Shepherd and Walsh, 2002;Dunn et al, 2002;Cozzolino and Moron, 2003). The ability to accurately infer material properties from reflectance signatures has the multiple benefits of allowing tremendously accelerated sample throughput and reduced per sample cost, both of which are significant considerations for large area soil-based diagnosis of ecological condition.…”
Section: Reflectance Spectra As Diagnostic Indicatorsmentioning
confidence: 99%