| 摘要 | 第7-11页 |
| Abstract | 第11-14页 |
| Chapter 1 Introduction | 第15-32页 |
| 1.1 Background | 第15-17页 |
| 1.2 Plant phenology | 第17-19页 |
| 1.3 The domestic and foreign phenology research | 第19-20页 |
| 1.4 Phenology responses to global warming | 第20-21页 |
| 1.5 Environmental factors on phenology | 第21-24页 |
| 1.5.1 Temperature | 第22页 |
| 1.5.2 Water content | 第22-23页 |
| 1.5.3 Photoperiod | 第23-24页 |
| 1.5.4 Other factors | 第24页 |
| 1.6 Common phenological observation methods | 第24-27页 |
| 1.6.1 Ground observation method | 第25-26页 |
| 1.6.2 Satellite remote sensing of phenology observation | 第26-27页 |
| 1.6.3 Near-surface remote sensing phenology observation | 第27页 |
| 1.7 The problems of plant phenology research needs to be studied in further | 第27-29页 |
| 1.8 Scientific questions | 第29-30页 |
| 1.9 Aims of this study | 第30-32页 |
| Chapter 2 Methods and materials | 第32-47页 |
| 2.1 Study area | 第32页 |
| 2.2 Plant phenology observation | 第32-36页 |
| 2.2.1 Above-ground (canopy) phenology observation | 第32-36页 |
| 2.2.2 Below-ground (root) phenology observation | 第36页 |
| 2.3 Gas exchange measurements of above- and below-ground | 第36-38页 |
| 2.4 Chlorophyll fluorescence | 第38-43页 |
| 2.4.1 Chlorophyll fluorescence measurements from leaf to satellite scale | 第38-41页 |
| 2.4.2 Estimation of GPP using SIF | 第41-43页 |
| 2.4.3 SCOPE model | 第43页 |
| 2.5 Leaf traits and vegetation indices | 第43-47页 |
| 2.5.1 Leaf chlorophyll concentration and leaf area index | 第43-45页 |
| 2.5.2 Leaf nitrogen content, equivalent water thickness, and leaf mass per area | 第45-46页 |
| 2.5.3 Environmental drivers of phenology | 第46-47页 |
| Chapter 3 Seasonal variation of ground-based NDVI imagery correlates with leaf and canopy properties in a temperate forest | 第47-70页 |
| 3.1 Introduction | 第47-50页 |
| 3.2 Materials and methods | 第50页 |
| 3.3 Results | 第50-62页 |
| 3.3.1 The seasonal variation of vegetation indices | 第50-55页 |
| 3.3.2 The seasonal variation of leaf and canopy properties | 第55-57页 |
| 3.3.3 Correlations between vegetation indices and plant physiological and functional traits | 第57-61页 |
| 3.3.4 Seasonal canopy development derived from camera-NDVI corresponds to daily mean air temperature | 第61-62页 |
| 3.4 Discussion | 第62-70页 |
| 3.4.1 Seasonal canopy development | 第63页 |
| 3.4.2 Seasonality of leaf and canopy functional traits | 第63-68页 |
| 3.4.3 Environmental drivers on canopy phenology | 第68-70页 |
| Chapter 4 Seasonal difference in the phenology and C cycling processes of aboveground and belowground components of temperate forest ecosystem | 第70-81页 |
| 4.1 Introduction | 第70-71页 |
| 4.2 Materials and methods | 第71页 |
| 4.3 Results | 第71-77页 |
| 4.3.1 The seasonal dynamics of above- and below-ground phenology and gas exchange | 第72-74页 |
| 4.3.2 Correlations between leaf/root phenology and the corresponding CO_2 production | 第74-75页 |
| 4.3.3 Environmental variables influence | 第75-77页 |
| 4.4 Discussion | 第77-81页 |
| 4.4.1 Above- and below-ground phenology and the corresponding gas-exchange performances | 第77-78页 |
| 4.4.2 The influences of environment factors effect on above- and below-ground phenology | 第78-81页 |
| Chapter 5 Chlorophyll fluorescence tracks seasonal variations of photosynthesis from leaf to canopy in a temperate forest | 第81-101页 |
| 5.1 Introduction | 第81-83页 |
| 5.2 Materials and methods | 第83-84页 |
| 5.3 Results | 第84-93页 |
| 5.3.1 The seasonality of leaf chlorophyll fluorescence and photosynthesis parameters over different spatial scales | 第84-88页 |
| 5.3.2 Correlations between plant chlorophyll fluorescence and photosynthesis | 第88-90页 |
| 5.3.3 Estimating GPP using SIF based on leaf-scaled physiological properties | 第90-91页 |
| 5.3.4 SIF-derived GPP correlated with chlorophyll content and vegetation indices | 第91-93页 |
| 5.4 Discussion | 第93-100页 |
| 5.4.1 The linkages between leaf and canopy fluorescence | 第94-95页 |
| 5.4.2 The correlations between photosynthesis and fluorescence over different spatial scales | 第95-97页 |
| 5.4.3 SIF and SIF-derived GPP correlate with chlorophyll content and other traits | 第97-100页 |
| Supporting information | 第100-101页 |
| Chapter 6 Conclusions, innovations and prospects | 第101-105页 |
| 6.1 Conclusions | 第101-102页 |
| 6.2 Innovations | 第102-103页 |
| 6.3 Prospects | 第103-105页 |
| References | 第105-130页 |
| 作者简介及在学期间研究成果 | 第130-132页 |
| 致谢 | 第132-134页 |
