| ABSTRACT | 第4-6页 |
| 摘要 | 第7-15页 |
| CHAPTER ONE INTRODUCTION | 第15-29页 |
| 1.1 Overview of soil pollution | 第15-16页 |
| 1.2 Introduction of cadmium pollution | 第16-20页 |
| 1.2.1 Chemical properties of cadmium | 第16-18页 |
| 1.2.2 Effects of cadmium on plant physiological functions | 第18-19页 |
| 1.2.3 Cadmium hazards on human health | 第19-20页 |
| 1.3 Biochar | 第20-27页 |
| 1.3.1 Introduction of biochar | 第20-21页 |
| 1.3.2 Production methods of biochar | 第21-24页 |
| 1.3.3 Application and prospect of biochar | 第24-27页 |
| 1.4 Research content and significance | 第27-29页 |
| 1.4.1 Research content and purposes | 第27页 |
| 1.4.2 Research significance | 第27-29页 |
| CHAPTER TWO INFLUENCE OF BIOCHAR ON SEEDS GERMINATION IN SOIL-LESS PETRI DISH BIOASAAY WITH DIFFERENT Cd(II) CONCENTRATIONS | 第29-44页 |
| 2.1 Introduction | 第29-30页 |
| 2.2 Experimental part | 第30-35页 |
| 2.2.1 Equipment and chemical reagents | 第30-31页 |
| 2.2.2 Preparation of biochar and its basic physical and chemical properties | 第31-34页 |
| 2.2.3 Seeds germination test | 第34-35页 |
| 2.3 Results and discussions | 第35-43页 |
| 2.4 Conclusion | 第43-44页 |
| CHAPTER THREE INFLUENCE OF BIOCHAR ON SEEDS GERMINATION IN WATERWITH Cd(II) POLLUTION | 第44-52页 |
| 3.1 Introduction | 第44-45页 |
| 3.2 Experimental part | 第45-47页 |
| 3.2.1 Equipment and chemical reagents | 第45页 |
| 3.2.2 Preparation of biochar and its basic physical and chemical properties | 第45-47页 |
| 3.2.3 Seeds germination test | 第47页 |
| 3.3 Results and discussions | 第47-50页 |
| 3.4 Conclusion | 第50-52页 |
| CHAPTER FOUR INFLUENCE OF BIOCHAR ON SEEDS GERMINATION IN SOILWITH Cd(II) POLLUTION | 第52-59页 |
| 4.1 Introduction | 第52页 |
| 4.2 Experimental part | 第52-55页 |
| 4.2.1 Equipment and chemical reagents | 第52-53页 |
| 4.2.2 Preparation of biochar and its basic physical and chemical properties | 第53-55页 |
| 4.2.3 Seeds germination test | 第55页 |
| 4.3 Results and discussion | 第55-57页 |
| 4.4 Conclusion | 第57-59页 |
| CHAPTER FIVE CONCLUSIONS AND PROSPECTS | 第59-62页 |
| 5.1 The main conclusion of the study paper | 第59-60页 |
| 5.2 Prospect | 第60-62页 |
| ACKNOWLEDGEMENTS | 第62-63页 |
| REFERENCES | 第63-69页 |
| 攻读学位期间的研究成果 (PUBLISHED WORKS) | 第69页 |
