| Abstract in chinese | 第7-9页 |
| Abstract in English | 第9-11页 |
| 1 Introduction | 第13-28页 |
| 1.1 Purpose and significance of this research | 第13-15页 |
| 1.2 Current research situation in the world | 第15-25页 |
| 1.2.1 The importance of clonal plant | 第15-16页 |
| 1.2.2 Research progress on morphological plasticity of plants | 第16-17页 |
| 1.2.3 Research progress on the physiological integration of plants | 第17-21页 |
| 1.2.4 Nitrogen and water effects on turfgrasses | 第21-23页 |
| 1.2.5 Relative research on Kentucky bluegrass | 第23-25页 |
| 1.3 The main contents and objectives of this research | 第25-28页 |
| 1.3.1 The main contents of this research | 第25-26页 |
| 1.3.2 Objectives | 第26-28页 |
| 2 Materials and methods | 第28-34页 |
| 2.1 Experimental material | 第28页 |
| 2.1.1 Select the test material | 第28页 |
| 2.1.2 Foster the test material | 第28页 |
| 2.2 Experimental design | 第28-33页 |
| 2.2.1 Field experiment design | 第28-31页 |
| 2.2.2 Indoor experiment | 第31-33页 |
| 2.3 Data processing and analysis | 第33-34页 |
| 3 Results | 第34-75页 |
| 3.1 Field experiment | 第34-59页 |
| 3.1.1 Seasonal changes of nitrogen and carbon concentrations of mother plants of Kentuckybluegrass in homogenous (E,C,B,D) treatments | 第34页 |
| 3.1.2 Seasonal changes of nitrogen and carbon concentrations of first ramet of Kentuckybluegrass in homogenous (E,C,B,D) treatments | 第34-35页 |
| 3.1.3 Different level of nitrogen and carbon concentrations of mother plants of Kentuckybluegrass in heterogeneous plots (A) during autumn period | 第35页 |
| 3.1.4 Different level of nitrogen and carbon concentrations of first ramet of Kentuckybluegrass in heterogeneous plots (A) during autumn period | 第35-40页 |
| 3.1.5 Different level of nitrogen and carbon concentrations of first ramet of Kentuckybluegrass in homogenous (E,C,B,D) plots during autumn period | 第40页 |
| 3.1.6 C:N ratio of ramet and mother plant in homogenous plots (E,C,B,D) | 第40-41页 |
| 3.1.7 C:N ratio of ramet and mother plant in heterogeneous plots (A) | 第41页 |
| 3.1.8 Effects of different water and nutrients supply on the maximum radius (cm) of Kentucky bluegrass at different days interval in homogenous (E,C,B,D) and heterogeneous plots (A) | 第41-46页 |
| 3.1.9 Effects of different water and nutrients supply on the above and ground mass (Kg/plot) of Kentucky bluegrass in homogenous (E,C,B,D) and heterogeneous plots (A) | 第46页 |
| 3.1.10 Number of ramets in homogenous (E,C,B,D) and heterogeneous plots (A) | 第46页 |
| 3.1.11 Leaf water content (%) of ramets in homogenous (E,C,B,D) and heterogeneous plots (A) | 第46-47页 |
| 3.1.12 Leaf water potential (-Mpa) of ramets in homogenous (E,C,B,D) and heterogeneousplots (A) | 第47-51页 |
| 3.1.13 Spad reading of ramets in homogenous (E,C,B,D) and heterogeneous plots (A) | 第51-52页 |
| 3.1.14 Leaf width (cm) of ramets in homogenous (E,C,B,D) and heterogeneous plots (A) | 第52页 |
| 3.1.15 Plant height (cm) of ramets in homogenous (E,C,B,D) and heterogeneous plots (A) | 第52-53页 |
| 3.1.16 Changes of leaf tissue structure of clonal plant of Kentucky in heterogeneous habitats | 第53-59页 |
| 3.2 Laboratory expeiment | 第59-75页 |
| 3.2.1 Changes of Catalase activity in clonal ramets of Kentucky bluegrass under differentnitrogen and water supply | 第59-60页 |
| 3.2.2 Changes of SOD in clonal ramets of Kentucky bluegrass under different nitrogen andwater supply | 第60-61页 |
| 3.2.3 Changes of POD in clonal ramets of Kentucky bluegrass under different nitrogen andwater supply | 第61页 |
| 3.2.4 Changes of Proline in clonal ramets of Kentucky bluegrass under different nitrogen andwater supply | 第61-62页 |
| 3.2.5 Changes of Root and Leaf Nitrogen isotopes abundance in clonal ramets of Kentuckybluegrass under different nitrogen and water supply | 第62-69页 |
| 3.2.6 Changes of Root and Leaf Nitrogen Content (%) in clonal ramets of Kentucky bluegrassunder different nitrogen and water supply | 第69-70页 |
| 3.2.7 Changes of Relative water content (%) in root and leaf in clonal ramets of Kentuckybluegrass under different nitrogen and water supply | 第70-71页 |
| 3.2.8 Changes of water potential (-Mpa) in root and leaf in clonal ramets of Kentuckybluegrass under different nitrogen and water supply | 第71-75页 |
| 4 Discussion | 第75-80页 |
| 4.1 Outdoor experiment | 第75-77页 |
| 4.2 Indoor experiment | 第77-80页 |
| 5 Conclusions | 第80-82页 |
| 5.1 Outdoor research | 第80页 |
| 5.2 Indoor research | 第80页 |
| 5.3 Creativities | 第80-82页 |
| Acknowledgement | 第82-83页 |
| References | 第83-97页 |
| Papers published in the periods of phd education | 第97-100页 |
