The potential of passive infrared thermography for the detection of microbial hot spots and hot moments at high spatial and temporal resolution / vorgelegt von Melanie Katharina Schwarz. Wuppertal, Juni 2021
Inhalt
- List of Figures
- List of Tables
- Nomenclature
- Abstract
- Kurzfassung
- Introduction
- General Motivation
- State of the Art
- How infrared thermography works and what exactly is measured
- What processes generate heat in soils
- How soil properties and ambient conditions affect the measured surface temperature
- Open Questions, Aims and Outline
- Research Study I
- Introduction
- Material and Methods
- Soil sampling
- Active and passive infrared thermography
- Determination of soil moisture using active infrared thermography
- Determination of microbial activity using passive infrared thermography
- Software
- Results and discussion
- Determination of soil moisture using active infrared thermography (A)
- Soil moisture calibration
- Spatial surface moisture distribution
- Spatial and temporal variability of surface moisture contents
- Determination of soil microbial activity using passive infrared thermography (P)
- Conclusions
- Research Study II
- Introduction
- Material and Methods
- Soil samples
- Analytical techniques
- Incubation experiments
- Incubation experiments for thermal imaging
- Effect of glucose application
- Glucose application methods
- Influence of ambient incubation condition
- Data preprocessing
- Respirometry incubation experiments
- The potential of hot movement identification on soil surface using IRT
- Software
- Results and discussion
- Incubation experiments for thermal imaging
- Effect of glucose application
- Glucose application methods
- Influence of ambient incubation conditions
- Data processing
- Respirometry incubation experiments
- The potential of hot movements identification on soil surface using IRT
- Conclusions
- Research Study III
- Introduction
- Material and methods
- Soil sampling
- Analytical techniques
- Determination of microbial activity using passive IRT
- Determination of soil surface moisture and structure using active IRT
- Determination of surface -glucosidase using zymography
- SOC distribution accessed using surface color parameters
- Soil sample incubation setup and procedure
- Georeferencing and scaling of the data
- Mathematical quantification and delineation of hot moments and hot spots
- Temporal delimitations characterization of hot moments
- Spatial relationship and characterization of hot spots
- Analysis of soil surface temperature and further soil properties
- Results and discussion
- Mathematical quantification and delineation of hot moments and hot spots
- Temporal delimitations characterization of hot moments
- Spatial relationship and characterization of hot spots
- Analysis of soil surface temperature and further soil properties
- Conclusions
- Synopsis
- Bibliography
- Appendix