| 摘要 | 第1-9页 |
| Abstract | 第9-16页 |
| Chapter 1 Introduction | 第16-26页 |
| ·Significance of the research | 第16-17页 |
| ·Literature review | 第17-23页 |
| ·Heavy metal pollution in river sediment and influencing factors | 第17-20页 |
| ·Heavy metal pollution in the Red River sediment | 第20-21页 |
| ·Application of environmental magnetism in heavy metal pollution study | 第21-23页 |
| ·Research objectives and contents | 第23-26页 |
| ·Objectives | 第23页 |
| ·Contents | 第23-26页 |
| Chapter 2 Study area and research methods | 第26-34页 |
| ·Study area | 第26-29页 |
| ·Samples | 第29页 |
| ·Research methods | 第29-34页 |
| ·Particle size analysis | 第29页 |
| ·Magnetic properties | 第29-31页 |
| ·Metal analysis | 第31页 |
| ·TOC analysis | 第31-32页 |
| ·Assessment of sediment contamination | 第32-34页 |
| Chapter 3 Heavy metal pollution in surface sediments of the Red River | 第34-46页 |
| ·Particle size composition and its spatial variation | 第34-35页 |
| ·Heavy metal contents and its spatial variation | 第35-37页 |
| ·Factors influencing heavy metal concentrations | 第37-42页 |
| ·Assessment of heavy metal pollution | 第42-45页 |
| ·Conclusions | 第45-46页 |
| Chapter 4 Magnetic properties of surface sediments in the Red River | 第46-55页 |
| ·Magnetic properties and its spatial variation | 第46-50页 |
| ·Relationship between bulk sediment particle size and magnetic properties | 第50-52页 |
| ·The influence of sediment particle size on magnetic properties | 第52-54页 |
| ·Conclusions | 第54-55页 |
| Chapter 5 Environmental magnetism as a proxy for heavy metal pollution | 第55-59页 |
| ·Relationship between magnetic properties and heavy metal concentration | 第55-56页 |
| ·Application of magnetic properties in heavy metal pollution study | 第56-58页 |
| ·Conclusions | 第58-59页 |
| Chapter 6 Conclusions | 第59-61页 |
| References | 第61-76页 |
| Appendix | 第76-84页 |
| Acknowledgements | 第84-86页 |
| Personal publications | 第86页 |
