| ABSTRACT | 第6-9页 |
| 摘要 | 第10-19页 |
| 1. LITERATURE REVIEW | 第19-31页 |
| 1. 1 Introduction | 第19-20页 |
| 1.2 Primary sources of potentially toxic elements in contaminated soils | 第20-22页 |
| 1.3 Impacts of potentially toxic elements on human health | 第22-24页 |
| 1.4 An overview of worldwide PTEs pollution | 第24-26页 |
| 1.5 Soil remediation approaches | 第26-27页 |
| 1.6 Immobilization mechanism | 第27页 |
| 1.7 Stabilization of soil potentially toxic elements by using additives | 第27-30页 |
| 1.8 Research objectives | 第30-31页 |
| 2. MATERIALS AND METHODS | 第31-39页 |
| 2.1 Collection of soil samples and characteristics | 第31页 |
| 2.2 Collection of studied amendments and characteristics | 第31-34页 |
| 2.3 Experiments design | 第34-37页 |
| 2.3.1 Pot experiments | 第34-37页 |
| 2.4 Sample analyses | 第37-38页 |
| 2.4.1 Analysis of un-amended soil samples | 第37页 |
| 2.4.2 Extraction of potentially toxic elements by using DTPA/TEA method | 第37-38页 |
| 2.4.3 Plant analysis | 第38页 |
| 2.4.4 Determination of chlorophyll content | 第38页 |
| 2.5 Quality control and statistical analyses | 第38-39页 |
| 3. THE INFLUENCE OF AMENDMENTS ON PHYSICAL-CHEMICAL CHARACTERISTICS OF SOILS | 第39-56页 |
| 3.1 Characteristics of the studied soils and amendments | 第39-42页 |
| 3.2 Effect of treatments on the changes in soil EC | 第42-44页 |
| 3.3 Effect of treatments on the changes in soil p H | 第44-46页 |
| 3.4 Effect of treatments on the changes in soil OM | 第46-48页 |
| 3.5 Effect of treatments on the changes in soil HA | 第48-50页 |
| 3.6 Effect of treatments on the changes in soil FA | 第50-52页 |
| 3.7 Effect of treatments on the changes in soil CEC | 第52-54页 |
| 3.8 Effect of treatments on the changes in soil DOC | 第54-56页 |
| 4. THE EVALUATION OF IMMOBILIZATION EFFICACY BY USING DTPA-EXTRACTABLE PTES | 第56-67页 |
| 4.1 Effect of treatments on DTPA-extractable Pb in soil | 第56-59页 |
| 4.2 Effect of treatments on DTPA-extractable Cd in soil | 第59-61页 |
| 4.3 Effect of treatments on DTPA-extractable Cu in soil | 第61-64页 |
| 4.4 Effect of treatments on DTPA-extractable Znin soil | 第64-67页 |
| 5. THE EVALUATION OF IMMOBILIZATION EFFECT BY USING POT EXPERIMENTS | 第67-91页 |
| 5.1 Effect of treatments on plant dry biomass yield | 第67-70页 |
| 5.2 Effect of treatments on chlorophyll content | 第70-72页 |
| 5.3 Effect of treatments on shoot uptake of Pb by Chinese cabbage and maize | 第72-74页 |
| 5.4 Effect of treatments on shoot uptake of Cd by Chinese cabbage and maize | 第74-76页 |
| 5.5 Effect of treatments on shoot uptake of Cu by Chinese cabbage and maize | 第76-78页 |
| 5.6 Effect of treatments on shoot uptake of Zn by Chinese cabbage and maize | 第78-81页 |
| 5.7 Effect of treatments on root accumulation of Pb by Chinese cabbage and maize | 第81-84页 |
| 5.8 Effect of treatments on root accumulation of Cd by Chinese cabbage and maize | 第84-86页 |
| 5.9 Effect of treatments on root accumulation of Cu by Chinese cabbage and maize | 第86-88页 |
| 5.10 Effect of treatments on root accumulation of Zn by Chinese cabbage and maize | 第88-91页 |
| 6. PEARSON CORRELATION ANALYSIS | 第91-101页 |
| 7. CONCLUSION | 第101-105页 |
| 8. FUTURE PERSPECTIVES | 第105-106页 |
| 9. HIGHLIGHTS | 第106-107页 |
| REFERENCES | 第107-123页 |
| APPENDIX A | 第123-125页 |
| APPENDIX B | 第125-127页 |
| ABOUT THE AUTHOR | 第127-128页 |
| PUBLISHED PEER REVIEWED PAPERS (SCI) | 第128-132页 |
| AKNOWLEDGEMENT | 第132页 |
