Bogner, C; Schmiedinger, I; Huwe, B: Rapid estimation of Brilliant Blue concentrations in soil by vis diffuse reflectance spectroscopy, Geoderma, 164, 95-98 (2011), doi:10.1016/j.geoderma.2011.04.017
Abstract:

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.

Upcoming ...

Ökologisch-Botanischer Garten:
Su. 2018-09-23
Konzert: Matinee im Garten mit dem Blockflötenensemble der Städtischen Musikschule Bayreuth unter Leitung von Heinz-Ulf Hertel
Su. 2018-10-07
Führung: Von Knoblauch und Kohl: Pflanzen, die vor Krebs schützen können
We. 2018-10-17
Führung: Ohne Moos nix los: Moose im ÖBG
Workshop:
Mo. 2018-09-24
Workshop Einstieg in die Umweltmesstechnik mit Arduino und Raspberry Pi
Th. 2018-10-11
BayCEER Workshop 2018
Weather research site
Luftdruck (356m): 963.8 hPa
Lufttemperatur: 27.2 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: 3 h/d
Wind (Höhe 17m): 18.9 km/h
Wind (Max.): 36.7 km/h
Windrichtung: SW

...more
Globalstrahlung: 328 W/m²
Lufttemperatur: 24.4 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: 4 h/d
Wind (Höhe 32m): 17.6 km/h
Wind (Max.): 45.1 km/h

...more
This site makes use of cookies More information