List of Contents in my Ph.D Thesis

chapter 1|chapter 2|chapter 3|chapter 4|chapter 5|chapter 6|chapter 7|chapter 8|appendice|

Chapter 1 Introduction

1.1 Significance of soil redistribution and its impacts
1.2 Importance of modelling in erosion and hydrological studies
1.3 Overview of existing erosion modelling approaches
1.3.1 Modelling objectives
1.3.2 Model construction
1.3.3 Model validation / evaluation
1.3.4 Model applications
1.3.5 Summary of erosion and hydrological modelling overview
1.4 The potential of a topographic approach in predicting erosion and deposition patterns
1.5 Potential of caesium-137 technique in validating the distributed erosion and sedimentation models
1.6 Objectives and research strategy
1.7 Thesis structure

Chapter 2 Review of the role of topography in erosion and deposition

2.1 Quantitative derivation of distributed terrain attributes within GIS packages and terrain analysis programs
2.1.1 Dimensionality of a spatial data model
2.1.2 Several important terms in distributed terrain modelling
2.1.3 Computer-based techniques for extracting distributed terrain attributes
2.1.4 Critical comment on computer-based terrain analysis
2.1.5 Research needs in quantitative modelling of distributed terrain attributes within GIS packages and terrain analysis programs
2.2. Critical review of research on the relationship between topography and erosion and deposition at field scale
2.2.1 Results from plot / trap based experiments
2.2.2 Field monitoring and investigation on arable land
2.2.3 Use of tracers
2.2.4 Theoretical derivations of the equation of sediment transport capacity
2.3 Integration of GIS and terrain-based hydrological, erosion and deposition modelling
2.3.1 GIS and existing erosion and deposition models
2.3.2 Modelling of process-based patterns on the landscape with GIS
2.4 Chapter Summary

Chapter 3 Site Descriptions and Methodology

3.1 Site descriptions
3.1.1 Butsford Barton site, UK
3.1.2 Yesa site, Spain
3.2 Field survey and sampling
3.2.1 Topographic mapping
3.2.2 Soil sampling
3.3 Laboratory treatment and detection
3.4 Data manipulation, analysis, and results presentation
3.5 Introduction to ARC/INFO GIS and TAPES-G
3.5.1 ARC/INFO
3.5.2 TAPES-G
3.6 Chapter summary

Chapter 4 A GIS-based modelling tool for the assessment of topographic effects on field-scale erosion and deposition patterns

4.1 Objectives and principles of the program development
4.2 Program environment and management
4.2.1 Hardware and software requirement
4.2.2 Program transfer, installation and removal
4.3 Introduction to TBGIS
4.3.1 What 'field' means to TBGIS
4.3.2 Geo-data in TBGIS
4.3.3 Geo-data generation from plain ASCII files
4.3.4 Workspace management in TBGIS
4.4 Description of TBGIS functions
4.4.1 DEM generation
4.4.2 DEM quality check
4.4.3 Erosion potential calculation
4.4.4 Relative erosion and deposition estimation
4.4.5 Determination of diffusing paths and estimation of relative erosion and deposition
4.4.6 Consideration of boundary conditions
4.4.7 Geo-data examination, analysis, and manipulation
4.4.8 Limitations of the program

Chapter 5 Critical examination of surface generation and terrain attribute estimation with GIS

5.1 Approaches for quantitative examination of GIS-derived terrain attributes
5.1.1 Strategy discussion
5.1.2 Generation of hypothetical surfaces with representative features
5.2 Performance of surface generation functions in ARC/INFO GIS on hypothetical surfaces and topographic data from Butsford Barton site (UK)
5.2.1 Parameters or options for a function and its system default
5.2.2 Test of surface generation functions in ARC/INFO GIS on hypothetical surfaces
5.2.3 Test of surface generation functions in ARC/INFO GIS on Butsford Barton site, UK
5.2.4 Interpolation of non-terrain attributes with surface functions in ARC/INFO GIS
5.3 Critical comparisons of several DEM-derived terrain attributes
5.3.1 Flow direction for establishing inter-cell relationships
5.3.2 Comparison of GIS-derived upslope contributing area from different methods
5.3.3 Comparison of GIS-derived slope gradient from different methods
5.4 Overview

Chapter 6 An empirical examination of the relationships between caesium-137 distributions and topography

6.1 Caesium-137 distribution on the study sites
6.1.1 Depth distributions of caesium-137 at different topographic positions
6.1.2 Spatial distributions of caesium-137 inventories
6.2 Brief review of studies on spatial distribution of caesium-137 and topography
6.3 Distributed terrain attributes on the study sites
6.4 Relationship of caesium-137 and terrain attributes on the study sites
6.5 Overview

Chapter 7 Simulation of erosion and deposition patterns and their validations with caesium-137 distributions

7.1 History of relation between caesium-137 technique and erosion and deposition prediction
7.2 Description of main soil redistribution processes on arable land
7.2.1 Tillage erosion on arable land
7.2.2 Water erosion on arable land
7.2.3 Estimation of spatially distributed relative soil redistribution rate
7.2.4 Initial terrain condition and interaction of topographic conditions with soil redistribution processes
7.3 Assessment of predicted erosion and deposition patterns with caesium-137 inventory
7.3.1 Approaches for the validation of distributed erosion and sedimentation models
7.3.2 Pattern comparisons of predicted relative erosion and deposition against detected caesium-137 inventories
7.3.3 Estimation of tillage erosion and water erosion rate
7.4 Chapter Summary

Chapter 8 Conclusions and Suggestions for Further Research

8.1 Introduction
8.2 Discussions and Conclusions from previous chapters
8.3 Limitations of this project
8.4 Suggestions for further research
8.5 Conclusion

Appendix 1 Quick view of TBGIS features
Appendix 2 Data file format for TBGIS
Appendix 3 List of URL (Universal Resource Locator) for relevant electronic documents
References