| 摘要 | 第1-6页 |
| Abstract | 第6-7页 |
| 目录 | 第7-13页 |
| Chapter 1: Introduction | 第13-25页 |
| ·Research purpose and motivation | 第13-14页 |
| ·Research progress in grassland ecosystem in Inner Mongolia | 第14-16页 |
| ·Study progress in grassland production | 第16-20页 |
| ·Impact of grazing on above ground biomass production | 第16-17页 |
| ·Impact of diversity on above ground dry matter production | 第17-18页 |
| ·Impact of precipitation on above ground dry matter production | 第18-19页 |
| ·Biomass and species richness of legumes of semi-arid grassland of Inner Mongolia | 第19-20页 |
| ·Research objective | 第20-21页 |
| ·General Objective | 第20页 |
| ·Specific Objective | 第20-21页 |
| ·Rationality of the study | 第21-24页 |
| ·The rationality of the study on impact of grazing on above ground dry matter production | 第21-22页 |
| ·The rational of the study on impact of biodiversity on above ground biomass productivity | 第22-23页 |
| ·The rational of the study on impact of precipitation on above ground dry matter production | 第23页 |
| ·The rational of the study on Legumes's species richness and above ground dry matter | 第23-24页 |
| ·Flow chart of Research | 第24-25页 |
| Chapter 2 Materials and methods | 第25-34页 |
| ·Study area and sampling design | 第25-29页 |
| ·Background of Inner Mongolia | 第25-26页 |
| ·Sampling sites | 第26-29页 |
| ·Data sources | 第29-34页 |
| ·Data collection | 第29-31页 |
| ·Data Analysis | 第31-34页 |
| Chapter 3: Impact of grazing on above ground dry matter production | 第34-42页 |
| ·Above ground dry matter of three grassland types in Inner Mongolia | 第34页 |
| ·Effect of grazing within grassland type | 第34-35页 |
| ·Influence of environmental variables on above ground dry matter | 第35页 |
| ·Impact of livestock grazing on the above ground dry matter | 第35-36页 |
| ·Impact of GSP on the above ground dry matter | 第36-39页 |
| ·Conservation Issues in Semi-arid Grasslands of Inner Mongolia | 第39-40页 |
| ·Summary | 第40-42页 |
| Chapter 4: Impact of biodiversity on above ground dry matter production | 第42-54页 |
| ·Above ground dry matter | 第42-43页 |
| ·Ratio of C3 and C4 plants in above ground dry matter | 第43页 |
| ·Species richness | 第43-44页 |
| ·Biodiversity | 第44-45页 |
| ·Precipitation and rain use efficiency | 第45-46页 |
| ·Relationships between above ground dry matter with species richness and diversity | 第46-50页 |
| ·Relationships between above ground dry matter with species richness and Simpson's diversity index | 第46-49页 |
| ·Relationships between above ground dry matter with precipitation | 第49-50页 |
| ·Impact of biodiversity and plant functional type on the above ground dry matter | 第50页 |
| ·Impact of precipition on above ground dry matter | 第50-51页 |
| ·Summary | 第51-54页 |
| Chapter 5: Impact of rain use efficiency on above ground biomassproductivity | 第54-64页 |
| ·Grassland type and year effects on RUE | 第54-55页 |
| ·Relationships between above ground dry matter with annual precipitation | 第55-56页 |
| ·Relationship between seasonals precipitations with RUE_(ADM) | 第56-57页 |
| ·Relationship between seasonals precipitation on RUE_(TDM) | 第57-58页 |
| ·Relationship between RUE_(ADM) on RUE_(TDM) | 第58-59页 |
| ·Species richness and RUE_(ADM) | 第59页 |
| ·Grassland type and year effects on RUE | 第59-60页 |
| ·Relationship between seasonal precipitation with RUE_(ADM) and RUE_(TDM) | 第60-61页 |
| ·Relationship between species richness and RUE_(ADM) | 第61-62页 |
| ·Summary | 第62-64页 |
| Chapter 6: Biomass and species richness of legumes of semi-arid grassland of Inner Mongolia | 第64-72页 |
| ·Composition of Legumes | 第64页 |
| ·Species-Richness and Above ground Biomass | 第64-66页 |
| ·Associations between above ground dry matter and species richness | 第66-68页 |
| ·Weather conditions | 第68-69页 |
| ·Possible influence of enviromental factors on legumes | 第69-71页 |
| ·Summary | 第71-72页 |
| Chapter 7: Conclusion | 第72-74页 |
| ·Impact of grazing on above ground dry matter production | 第72页 |
| ·Impact of diversity on above ground dry matter production | 第72页 |
| ·Impact of precipitation on above ground dry matter production | 第72-73页 |
| ·Above ground dry matter and species richness of legumes | 第73-74页 |
| References | 第74-88页 |
| Acknowledgement | 第88-89页 |
| 中文详细摘要 | 第89-96页 |
| 作者简历 | 第96页 |
