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Rapid estimation of Brilliant Blue concentrations in soil by vis diffuse reflectance spectroscopy

Title data

Bogner, Christina ; Schmiedinger, Iris ; Huwe, Bernd:
Rapid estimation of Brilliant Blue concentrations in soil by vis diffuse reflectance spectroscopy.
In: Geoderma. Vol. 164 (2011) Issue 1-2 . - pp. 95-98.
ISSN 0016-7061
DOI: https://doi.org/10.1016/j.geoderma.2011.04.017

Abstract in another language

Brilliant Blue is often used to trace water movement in soils. Its concentration in soil samples is usually determined by extraction - a laborious procedure with varying accuracy. In this feasibility study, we show that Brilliant Blue can be estimated directly by visible (vis) diffuse reflectance spectroscopy (DRS). We build a PLSR (partial least squares regression) model for the concentration range of 0.1 to 15 mg Brilliant Blue per g soil with an RMSE (root mean square error) of 1.35 mg g-1 and an Radj2 of 0.88. However, as the method is based on visible spectra, prediction accuracy can be altered by variations in soil colour between calibration and prediction data sets. Therefore, we recommend a site specific calibration based on typical soil colours and an expected range of Brilliant Blue concentrations.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER95340
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Ecological Modelling
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Physics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Professorship Soil Physics - Univ.-Prof. Dr. Bernd Huwe
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 29 Jun 2015 06:09
Last Modified: 29 Jun 2015 06:09
URI: https://eref.uni-bayreuth.de/id/eprint/15489