| Abstract | 第5-6页 |
| 摘要 | 第7-12页 |
| 1. Introduction | 第12-18页 |
| 1.1 Research Background | 第12-15页 |
| 1.2 Problem statement of the research | 第15-16页 |
| 1.3 Hypotheses | 第16-17页 |
| 1.3.1 Objectives of the Study | 第16页 |
| 1.3.2 Specific Objectives | 第16-17页 |
| 1.4 Significance of the Study | 第17页 |
| 1.5 Organization of the Thesis | 第17页 |
| 1.6 Limitations of the Study | 第17-18页 |
| 2 Literature Review | 第18-24页 |
| 2.1 Greenhouse gases and greenhouse effect | 第18-19页 |
| 2.2 Carbon sequestration | 第19-21页 |
| 2.2.1 Forest carbon sequestration | 第19-20页 |
| 2.2.2 Soil carbon sequestration | 第20-21页 |
| 2.4 Dissolved organic matter (DOM) | 第21页 |
| 2.5 Soil microbial biomass(SMB) | 第21-22页 |
| 2.6 The Intergovernmental Panel on Climate Change (IPCC) | 第22-23页 |
| 2.7 United Nation's Framework Convention on Climate Change (UNFCCC) and TheKyoto Protocol | 第23页 |
| 2.8 Clean Development Mechanism (CDM) | 第23-24页 |
| 3 Methodology | 第24-33页 |
| 3.1 Study area | 第24-26页 |
| 3.2 Sampling methods and tools | 第26-28页 |
| 3.2.1 Trees Biophysical Measurements | 第26-27页 |
| 3.2.2 Shrubs, litter, herbs and grasses sampling | 第27-28页 |
| 3.2.3 Calculation of Carbon Storage | 第28页 |
| 3.3 Soil Sampling | 第28-31页 |
| 3.3.1 Soil analysis | 第29页 |
| 3.3.2 Soil organic carbon (SOC) | 第29-30页 |
| 3.3.3 Soil total nitrogen (TN) | 第30-31页 |
| 3.4 Dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) | 第31-32页 |
| 3.5 Soil microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) | 第32页 |
| 3.6 Statistical analysis | 第32-33页 |
| 4 Results | 第33-63页 |
| 4.1 Forest Biomass in the tree layer component | 第33-37页 |
| 4.1.2 Understory vegetation and forest floor layers biomass | 第35-37页 |
| 4.2 Carbon fractions in the tree, understory vegetation and forest floor layers | 第37-44页 |
| 4.2.1 Nitrogen content (g/kg) in the tree, understory vegetation and forest floor layers | 第39-40页 |
| 4.2.2 Carbon storage in the tree, understory and forest floor layers | 第40-42页 |
| 4.2.3 Nitrogen storage in the tree, understory and forest floor layers | 第42-44页 |
| 4.3 Changes in soil bulk density, moisture content and pH | 第44-46页 |
| 4.4 Changes in the contents and stocks of SOC | 第46-53页 |
| 4.4.1 Changes in the contents and stocks of TN | 第48-49页 |
| 4.4.2 Changes in the contents of DOC and DON | 第49-51页 |
| 4.4.3 Changes in the contents of MBC and MBN | 第51-53页 |
| 4.5 Changes in the carbon to nitrogen ratio | 第53-54页 |
| 4.5.1 The ratio of DOC/DON, DOC/TOC and DON/TN | 第53-54页 |
| 4.5.2 The ratio of soil microbial and organic properties | 第54页 |
| 4.6 Relationships between soil organic, chemical and physical properties | 第54-59页 |
| 4.6.1 Relationships between soil dissolved, organic and physico-chemical properties | 第56-57页 |
| 4.6.2 Relationships between soil microbial variables, organic and physico-chemicalproperties | 第57-59页 |
| 4.7 Carbon storage in the forest ecosystem components | 第59-61页 |
| 4.8 Nitrogen stock in the forest ecosystem components | 第61-63页 |
| 5 Discussion | 第63-82页 |
| 5.1 Biomass storage in the tree, understory and forest floor layers | 第63-64页 |
| 5.2 Vegetation C and N fractions | 第64-68页 |
| 5.2.1 Vegetation C and N storage | 第65-68页 |
| 5.3 SOC content and SOC stock | 第68-72页 |
| 5.4 TN content and TN stock | 第72页 |
| 5.5 DOC and DON content in the sampled soil layers of the Masson pine plantations | 第72-75页 |
| 5.6 MBC and MBN content in the sampled soil layers of the Masson pine plantations | 第75-76页 |
| 5.7 Changes in the C/N ratio of soil organic variables with stand ages and soil depth | 第76-77页 |
| 5.7.1 Changes in the C/N ratio of soil dissolved and organic variables with stand agesand soil depth | 第76-77页 |
| 5.7.2 Changes in the C/N ratio of soil microbial and organic variables with standages and soil depth | 第77页 |
| 5.8 Relationships between soil organic, physical and chemical properties | 第77-79页 |
| 5.8.1 Relationship between soil microbial, chemical and environmental properties | 第78-79页 |
| 5.9 Forest ecosystem C and N pools | 第79-82页 |
| 6 Conclusions and Recommendations | 第82-84页 |
| 6.1 Conclusions | 第82-84页 |
| 6.2 Recommendations | 第84页 |
| References | 第84-101页 |
| Acknowledgements | 第101-102页 |
| Publications | 第102-104页 |
| Biography | 第104页 |
| Meta Francis Justine | 第104页 |
| Work experience | 第104页 |
| Awards | 第104页 |
