| ABSTRACT | 第1-9页 |
| 摘要 | 第9-12页 |
| CHAPTER ONE GENERAL INTRODUCTION | 第12-40页 |
| §1.1 OVERVIEW | 第12-13页 |
| §1.2 INTRODUCTION TO PERSISTENT ORGANIC POLLUTANTS | 第13-14页 |
| §1.3 POLYCYCLIC AROMATIC HYDROCARBONS | 第14-18页 |
| §1.4 ORGANOCHLORINE PESTICIDES | 第18-27页 |
| ·The Application of Organochlorine Pesticides Globally | 第18-19页 |
| ·Physical and chemical properties of OCPs | 第19-27页 |
| §1.5 Environmental Transport and Distribution of Persistent Organic Pollutants | 第27-32页 |
| ·Atmospheric Transport and Distribution | 第28-29页 |
| ·Soil Transport and Distribution | 第29-30页 |
| ·Sediment Transport and Distribution | 第30页 |
| ·Water Transport and Distribution | 第30-31页 |
| ·Biota Transport and Distribution | 第31-32页 |
| §1.6 Persistent organic pollutants exchange in Media (interface in different media) | 第32-34页 |
| §1.7 Fate and Behavior of POPs in the environment | 第34-35页 |
| §1.8 Predicting the Sources of POPs | 第35-40页 |
| ·Sources and signature of PAHs | 第36-38页 |
| ·Sources and signature of OCPs | 第38-40页 |
| CHAPTER TWO REVIEW ON STUDY AREA AND KARST GEOMORPHOLOGY | 第40-55页 |
| §2.1 BRIEF DESCRIPTION OF STUDY AREA | 第40-42页 |
| ·CLIMATE | 第41页 |
| ·FAUNA AND FLORA | 第41-42页 |
| ·MINERAL RESOURCES | 第42页 |
| §2.2 PHYSIOGRAPHY & HYDRODYNAMICS OF KARST ENVIRONMENTS | 第42-55页 |
| ·Introduction | 第42-43页 |
| ·Spatial Distribution of Karst Globally | 第43-44页 |
| ·Geomorphological Characteristics of Karst | 第44-45页 |
| ·Climatic Characteristics of Chinese karst Area | 第45页 |
| ·.KARST ECOSYSTEM | 第45-46页 |
| ·Dolines and Tiankengs | 第46-55页 |
| CHAPTER THREE SAMPLING AND ANALYSIS | 第55-62页 |
| §3.1 SAMPLING | 第55-59页 |
| §3.2 ANALYSIS | 第59-62页 |
| ·Experiment Procedures | 第59-60页 |
| ·Equipment analysis | 第60-61页 |
| ·Quality Control | 第61-62页 |
| CHAPTER FOUR RESULTS AND DISCUSSION | 第62-97页 |
| §4.1 LEVELS OF POLYCYCL1C AROMATIC HYDROCARBONS IN SAMPLES | 第62-76页 |
| ·Distribution of PAHs in Surface Soils of Dashiwei Tiankeng | 第63-69页 |
| ·Distribution of PAHs in Surface Soils of Datuo Tiankeng | 第69-75页 |
| ·Summary of PAHs Distribution in Dashiwei in Datuo Tiankengs | 第75-76页 |
| §4.2 SOURCES AND CHARACTER OF POPs IN SURFACE SOILS | 第76-80页 |
| ·Sources of PAHs in Surface Soils of Dashiwei Tiankeng | 第76-78页 |
| ·Sources of PAHs in Surface Soils of Datuo Tiankeng | 第78-79页 |
| ·Global Comparison of Other PAHs Investigation with Present Study | 第79-80页 |
| §4.3 LEVELS OF ORGANOCHLORINE PESTICIDES IN SAMPLES | 第80-97页 |
| ·Distribution, sources and Character of OCPs in Soils of Dashiwei Tiankeng | 第82-89页 |
| ·Distribution, sources and Character of OCPs in Soils of Datuo Tiankeng | 第89-95页 |
| ·Summary on OCPs Distribution, Sources and Character in the Tiankengs | 第95-96页 |
| ·Global Comparison of Other OCPs Investigation with Present Study | 第96-97页 |
| CHAPTER FIVE CONCLUSION AND RECOMMENDATION | 第97-102页 |
| §5.1 Soil Samples from Dashiwei Tiankeng | 第97-98页 |
| §5.2 Soil Samples from Datuo Tiankeng | 第98-100页 |
| §5.3 GENERAL SUMMARY | 第100页 |
| §5.4 RECOMMENDATIONS AND PROSPECTS | 第100-102页 |
| ACKNOWLEDGEMENT | 第102-104页 |
| REFERENCES | 第104-111页 |
| APPENDIX | 第111-113页 |
