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4 results for “Laser diffraction particle size”
Data from: Making soil particle size analysis by laser diffraction compatible with standard soil texture determination methods
The standard sieving, pipette and hydrometer methods for soil particle size analysis (PSA) have three main drawbacks: procedures are tedious, time-consuming, and the results are protocol-dependent. Laser diffraction PSA delivers rapid results using standardized procedures, but so far it has been difficult to reconcile results with those from standard sedimentation methods. The objective of this study was to develop a protocol that would permit direct usage of laser diffraction PSA and render results compatible with current methods. The protocol was developed using standard soil samples from different textural classes. Regression of the laser diffraction PSA against the hydrometer/pipette method yielded coefficients of determination of 0.92/0.9, 0.92/0.94 and 0.99/0.99, and root mean square errors of 0.04/0.05, 0.07/0.06 and 0.05/0.03 for clay, silt and sand, respectively. These statistics are comparable to those obtained by regressing results of the hydrometer against the sieve and pipette methods. A key factor in securing accurate and precise results was limiting the particle size range of the samples by wet sieving the sand fraction. This created representative samples and stable soil dispersed suspensions, allowing accurate estimations of particle size distribution for clay and silt fractions without empirical transformations. Results obtained with the proposed protocol matched those of standard sedimentation analyses for a wide range of soils, encouraging further adoption of laser diffraction for soil PSA.
Data to reproduce the results presented in de Lange et al. 2023. Water Resources Research, "The Impact Of Flocculation on In Situ and Ex Situ Particle Size Measurements by Laser Diffraction"
<p>This repository consists data to reproduce results as presented in: "The Impact Of Flocculation on In Situ and Ex Situ Particle Size Measurements by Laser Diffraction", Water Resources Research. Kindly refer to the readme.text file to navigate through the dataset.</p>
Data from: Making soil particle size analysis by laser diffraction compatible with standard soil texture determination methods
Open the record for dataset details and reuse information.
Data from: Making soil particle size analysis by laser diffraction compatible with standard soil texture determination methods
Open the record for dataset details and reuse information.
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