| ABSTRACT | 第1-7页 |
| 摘要 | 第7-9页 |
| TABLE OF CONTENTS | 第9-12页 |
| 目录 | 第12-14页 |
| LIST OF TABLES | 第14-15页 |
| LIST OF FIGURES | 第15-17页 |
| LIST OF ABBREVIATIONS | 第17-18页 |
| CHAPTER 1. BACKGROUND | 第18-40页 |
| ·Introduction | 第18-21页 |
| ·China and International researchprogress of PM and its control | 第21-39页 |
| ·The Origin of Particulate Matter | 第21-23页 |
| ·Sources and components | 第23-25页 |
| ·Particulate Matter(PM)Standards | 第25-27页 |
| ·Regulating the Public Health Problem PM2.5 | 第27-28页 |
| ·Interaction Between Trees,Air,and Particles | 第28-39页 |
| ·Tendency and existing problems of the field and references | 第39-40页 |
| CHAPTER 2: STUDY SURVEY | 第40-47页 |
| ·Study Sites | 第40-41页 |
| ·Emission Source Activities | 第41-42页 |
| ·Urban forest Species characteristics | 第42-47页 |
| CHAPTER 3: STUDY AIMS-OBJECTIVES AND METHODS | 第47-60页 |
| ·Study Aims and Objectives | 第47页 |
| ·Specific Aims | 第47页 |
| ·Summary of Research Objectives | 第47页 |
| ·Research materials | 第47-50页 |
| ·Urban forest types | 第47-49页 |
| ·Urban forest species | 第49-50页 |
| ·Experimental design and data collection | 第50-52页 |
| ·Methods | 第52-57页 |
| ·Measurement of Particle Concentration in Air-Weighing method | 第52-53页 |
| ·Measurement of Particle Concentration in Air-Dustmate monitor | 第53-54页 |
| ·Chemical composition analyses | 第54-55页 |
| ·Estimating Mass of PM on Leaves-Washoff(laboratory analyses) | 第55-57页 |
| ·Statistical Analysis | 第57-58页 |
| ·Technology roadmap | 第58-60页 |
| CHAPTER 4: THE RELATIONSHIP BETWEEN TYPES OF URBAN FOREST AND PM_(2.5)CAPTURE AT FOUR GROWTH STAGES OF LEAVES | 第60-69页 |
| ·The varies between diurnal time periods and between stages of leaf growth of PM_(2.5) concentration | 第60-61页 |
| ·Daily variation of aerosol PM_(2.5) concentration for different urban forest types | 第61-62页 |
| ·The aerosol PM2.5 concentration between the different urban forest types | 第62-68页 |
| ·Summary | 第68-69页 |
| CHAPTER 5: PHYSICOCHEMICAL CHARACTERISTICS OF PM_(2.5) IN DIFFERENT URBANFOREST TYPES | 第69-78页 |
| ·Carbonaceous species in PM_(2.5) (VOC-OC-EC-TC) | 第70-74页 |
| ·Carbonaceous (VOC-OC-EC-TC) concentration in PM_(2.5) at differing stages of leaf growth | 第70-73页 |
| ·Correlation of the aerosol PM_(2.5) with Carbonaceous species in differ urban forest types | 第73-74页 |
| ·Water-Soluble Inorganic Ions in PM_(2.5) | 第74-77页 |
| ·Water-Soluble Inorganic Ions in PM_(2.5) at differing stages of leaf growth | 第74-76页 |
| ·Correlation of the aerosol PM_(2.5) with water-soluble inorganic ions in differing urban forest types | 第76-77页 |
| ·Summary | 第77-78页 |
| CHAPTER 6: ANALYSIS AND EVALUATE THE VARIATIONS OF AIR PARTICULATE MATTERCONCENTRATIONS IN DIFFERENT URBAN FOREST TYPES | 第78-94页 |
| ·The PM concentrations (TSP, PM_(10), PM_(2.5) and PM_1) measured by the Dustmate monitors at the differurban forest types | 第78-84页 |
| ·The PM concentrations (TSP, PM_(10), PM_(2.5) and PM,) at the differ urban forest types | 第79-81页 |
| ·Correlation between different sizes of air particulate matter | 第81-84页 |
| ·Year variations of TSP, PM_(10,) PM_(2.5) and PM_1 concentrations | 第84-86页 |
| ·Year variety of air PM concentration in different types of urban forest types | 第86-88页 |
| ·Daily variety of air PM concentration in different types of urban forest type | 第88-91页 |
| ·Particulate matter concentrations in different types of urban forest type in year | 第91-93页 |
| ·Summary | 第93-94页 |
| CHAPTER 7: URBAN PLANT SPECIES DIFFERENCES IN PARTICULATE MATTERACCUMULATION ON LEAF SURFACES | 第94-108页 |
| ·PM concentration deposited at different seasons | 第94-97页 |
| ·PM concentration deposited at different urban forest species | 第97-101页 |
| ·Urban plant species differences in particulate matter accumulation on Surface PM and Waxed PM concentration | 第101-103页 |
| ·Surface PM and Waxed PM concentration ratio | 第103-105页 |
| ·Compare of PM on leaf deposited of conifer species in different seasons and different urban foresttypes | 第105-106页 |
| ·Summary | 第106-108页 |
| CHAPTER 8: THE EFFECT OF CLIMATE AND TREE FACTORS ON PARTICULATE MATTERCONCENTRATION BETWEEN DIFFERENT URBAN FOREST TYPES | 第108-124页 |
| ·Effect of Weather factors on PM in the Air at Five urban forest types | 第108-119页 |
| ·Effect of relative humidity and temperature condition | 第108-111页 |
| ·Effect of rain factor | 第111-114页 |
| ·Effect of haze condition | 第114-118页 |
| ·Effect of wind factor | 第118-119页 |
| ·The Correlation between leaf area index (LAI) on PM_(2.5) in the Air at Five urban forest types | 第119-120页 |
| ·The effect of dif-fering urban forest types on PM concentrations in the air | 第120-122页 |
| ·Summary | 第122-124页 |
| CHAPTER 9: CONCLUSIONS-DISCUSION | 第124-130页 |
| ·Conclusion | 第124-125页 |
| ·Discussion | 第125-128页 |
| ·Innovations | 第128页 |
| ·Recommendation | 第128-130页 |
| REFERENCES | 第130-140页 |
| Brief Introduciton of Student | 第140-141页 |
| Brief Introduction of Professor Yu Xin Xiao | 第141-142页 |
| SOCIAL ACTIVITIES | 第142-143页 |
| ACKNOWLEDGEMENTS | 第143页 |
