声明
CHAPTER 1 INTRODUCTION
1.1 Research Backgrounds
1.2Objectives and Significance
1.3 Literature Review
1.3.1 Introduction
1.3.2Challenges in the Loess Plateau
1.3.3Previous of soil moisture movement study
1.3.4Previous studies of cavity-making technique
1.3.5 Numerical model
1.4Research Problem/Question
1.5Research subjects
1.6Research content
1.7 Research framework
CHAPTER 2 METHODOLOGIES
2.1Experimental study
2.1.1Soil textural classes and hydraulic parameters
2.1.2 Experimental design
2.2Hydrus-2D/3D model
2.2.1Soil hydraulic model and water flow parameters
2.2.2Hydrus-2D/3D setup for experiment 1: Adripping infiltration
2.2.3Hydrus-2D/3D setup for experiment 2: Ponded infiltration
2.3 Statistical analysis
CHAPTER 3 RESULTS ANALYSIS
3.1Analysis of experimental and numerical results of experiment 1(Scenario of dripping infiltration)
3.1.1Soil water movement and characters
3.1.2Spatial and temporal variations of water content in vertical transects
3.1.3Comparisons of model simulation
3.2Analysis of experimental and numerical results of experiment 2:Pounded infiltration experiment
3.2.1Soil water movement and changes in soil storage
3.2.2Spatial and temporal variations of water content in vertical transects
3.2.3Comparisons of model simulation
CHAPTER 4 CONCLUSIONS AND LIMITATIONS
4.1 Conclusions
4.2Limitations and scope of research
APPENDICES
参考文献
致谢
AUTHOR BIOGRAPHY
