Michael Seidel

Michael Seidel
University of Leipzig · Institute for Geography

Master of Science

About

16
Publications
3,236
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325
Citations
Introduction

Publications

Publications (16)
Article
Full-text available
Quaternary sediment successions provide valuable insights into Earth's recent geological history, contributing to our understanding of environmental change and climate dynamics. Detailed and reliable stratigraphies of Quaternary sediment outcrops or drill cores, however, often require time-consuming and expensive laboratory analyses. Diffuse reflec...
Data
This supplementary material of Hutengs et al contains: - Table S1: Field stratigraphy of core SC40 based on Ballasus et al. (2022). - Table S2: Field stratigraphy of core SC57. - Table S3: PLSR predictive modelling results for MIR spectral data. - Figure S4: Mean absorbance spectra after SNV pre-processing in the VNIR and MIR for the Ap's, paleoso...
Article
Full-text available
Previous studies investigating multi-sensor fusion for the collection of soil information have shown variable improvements, and the underlying prediction mechanisms are not sufficiently understood for spectrally-active and -inactive properties. Our objective was to study prediction mechanisms and benefits of model fusion by measuring mid-infrared (...
Article
Portable visible to near-infrared (VNIR) and mid-infrared (MIR) soil spectroscopy holds great potential to support field applications in soil science and management by complementing conventional soil analytical methods. Under field conditions, however, soil moisture can critically affect the quality of reflectance measurements. In this study, we ex...
Article
Full-text available
Soil spectroscopy in the visible-to-near infrared (VNIR) and mid-infrared (MIR) is a cost-effective method to determine the soil organic carbon content (SOC) based on predictive spectral models calibrated to analytical-determined SOC reference data. The degree to which uncertainty in reference data and spectral measurements contributes to the estim...
Article
Full-text available
Comparison of in situ mid-infrared spectroscopy (MIRS) with laboratory MIRS is required to demonstrate the accuracy of field-scale prediction of soil properties. Application of MIRS to investigate soil management questions must also be tested. Our objectives were therefore to determine i) the accuracy of lab vs in situ calibrations using various nu...
Article
Full-text available
Soil organic matter (SOM) is an indispensable component of terrestrial ecosystems. Soil organic carbon (SOC) dynamics are influenced by a number of well-known abiotic factors such as clay content, soil pH, or pedogenic oxides. These parameters interact with each other and vary in their influence on SOC depending on local conditions. To investigate...
Article
Benefits of fusion approaches for visible to near (vis-NIR) and mid-infrared (MIR) chemometric modelling have been studied to some extent for laboratory-based soil studies, but little is known about the usefulness and limitations for in situ studies. Objectives were to compare laboratory-based and in situ vis-NIR and MIR partial least squares (PLS)...
Article
Full-text available
Comparison of laboratory versus in situ visible/near‐ (visNIR) and mid‐infrared (MIR) spectroscopy for prediction of various soil properties is required to demonstrate trade‐offs between accuracy and efficiency. Field measurements were made on an arable field in Germany (silt loam Haplic Luvisol) using visNIR (ASD FieldSpec 3 Hi‐Res) and MIR (Agile...
Preprint
Full-text available
Soil organic matter (SOM) is an indispensable component of terrestrial ecosystems. Soil organic carbon (SOC) dynamics are influenced by a number of well-known abiotic factors such as clay content, soil pH or pedogenic oxides. These parameters interact with each other and vary in their influence on SOC depending on local conditions. To investigate t...
Article
Improving our understanding of the functions and processes of soil microbial communities and their interactions with the physicochemical soil environment requires large amounts of timely and cost-efficient soil data, which is difficult to obtain with routine laboratory-analytical methods. Soil spectroscopy with portable visible-to-near infrared (VN...
Book
Die genaue Bestimmung von Humus-Konzentrationen und deren Veränderungen im Boden ist unter anderem entscheidend für die Bewertung der Bodenqualität und der Rolle der Böden im Klimawandel. In vier verschiedenen Gebieten mit unterschiedlichen Böden wurde an 200 Proben Spektroskopie-Messungen durchgeführt. Die Studie bestätigt die Eignung spektroskopi...
Article
Full-text available
Freshwater lakes provide many important ecosystem functions and services to support biodiversity and human well-being. Proximal and remote sensing methods represent an efficient approach to derive water quality indicators such as optically active substances (OAS). Measurements of above-ground remote and in situ proximal sensors, however, are limite...
Article
Mid-infrared (MIR) spectroscopy has been established as a rapid and cost-efficient laboratory analysis technique for soil organic carbon (SOC) concentrations. Current portable, high-performance handheld MIR instruments have opened the opportunity to take the technique from the laboratory to the field. We tested the potential of handheld MIR spectro...
Article
Soil spectroscopy in the visible-to-near-infrared (vis-NIR) range is a cost-effective alternative analysis technique to determine soil organic carbon (SOC). The development and provision of large-scale soil spectral libraries (SSLs) further facilitates the application of vis-NIR spectroscopy for the rapid assessment of SOC. However, optimal strateg...

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