| ACKNOWLEDGEMENTS | 第8-9页 |
| Table of Contents | 第9-11页 |
| List of Tables | 第11-13页 |
| List of Figures | 第13-14页 |
| Abstract | 第14-15页 |
| CHAPTER ONE:Introduction, includes | 第16-22页 |
| 1.1 Introduction | 第16-18页 |
| 1.2 Problem Statement and Justification | 第18-19页 |
| 1.3 Objectives and Hypotheses | 第19-22页 |
| CHAPTER TWO:Literature Review | 第22-35页 |
| 2.1 The application fields of remote sensing in agriculture and crop | 第22-25页 |
| 2.2 Other challenges may affect for delay the adopting the technique in some | 第25-26页 |
| 2.3 Background of using remote sensing in Sudan:Projects in Northern | 第26-27页 |
| 2.4 Recent activities of using remote sensing in Sudan | 第27-35页 |
| 2.4.1 Crop signature in Rain-fed and Irrigated Sectors | 第27-28页 |
| 2.4.2 Sudan Institutional Capacity Program, Food Security Information for | 第28-29页 |
| 2.4.3 Africover Land Cover Classification and Mapping Project:Summary of | 第29-31页 |
| 2.4.4 Crop Yield Assessment | 第31-35页 |
| 2.4.4.1 Sorghum Assessment in Rain-fed Farming | 第31-32页 |
| 2.4.4.2 Sorghum Accuracy Assessment in Rain-fed Farming | 第32-35页 |
| CHAPTER THREE:Study Area | 第35-42页 |
| 3.1 The Economic Importance of the State | 第35-37页 |
| 3.2 Soil | 第37页 |
| 3.3 Climate | 第37页 |
| 3.4 Mechanized Rain-fed Sector Characteristics | 第37-39页 |
| 3.5 Crop Cutting Method for Estimate Crop Yield | 第39-42页 |
| CHAPTER FOUR:Methodology(MATRIALS AND METHODS) | 第42-47页 |
| 4.1 Image Acquisition | 第42-44页 |
| 4.2 Spectral vegetation Indices | 第44页 |
| 4.3 Image Processing | 第44页 |
| 4.4 Field Data Collection and Auxiliary Data | 第44-47页 |
| CHAPTER FIVE:Results and Discussion | 第47-59页 |
| 5.1 NDVI measurement | 第47-48页 |
| 5.2 NDVI with Rainfall measurement | 第48-52页 |
| 5.3 Affects of Applied Stratified Sample on Data | 第52-54页 |
| 5.4 NDVI and NDVI+Rainfall measurements in 2009 and 2010 | 第54-55页 |
| 5.5. Model of the linear regression 2007-2010 | 第55-59页 |
| 5.5.1. Limitation of Data and Difficulties may face the model | 第55-56页 |
| 5.5.2. The final liner regression model | 第56-59页 |
| CHAPTER SIX:Conclusions and Recommendations | 第59-61页 |
| References | 第61-63页 |
