| ACKNOWLEDGEMENTS | 第7-8页 |
| Abstract | 第8页 |
| 摘要 | 第9-12页 |
| CHAPTER ⅠINTRODUCTION | 第12-15页 |
| 1.1 Background | 第12-13页 |
| 1.2 Purpose of the Thesis | 第13页 |
| 1.3 Significance of the Investigation | 第13页 |
| 1.4 Structure of the Thesis | 第13-15页 |
| CHAPTER ⅡLITERATURE REVIEW | 第15-23页 |
| CHAPTER Ⅲ INTRODUCTION TO THE DEVELOPMENT OF AMERICAN AGRICULTURE | 第23-29页 |
| 3.1 American Traditional Farming Before the World WarⅠ | 第24-26页 |
| 3.2 The Triumph of Modern Agriculture After World War Ⅰ | 第26-29页 |
| CHAPTER Ⅳ CRISES IN MODERN AMERICAN AGRICULTURE | 第29-39页 |
| 4.1 Ecological Crises of Modern American Agriculture | 第29-36页 |
| 4.1.1 Soil Erosion | 第29-31页 |
| 4.1.2 Loss of Genetic Diversity | 第31-32页 |
| 4.1.3 Energy Dependency | 第32页 |
| 4.1.4 Depletion of Water Resources | 第32-33页 |
| 4.1.5 Chemical Contamination | 第33-36页 |
| 4.2 Cultural Crisis Caused by Modern American Agriculture | 第36-39页 |
| CHAPTER Ⅴ ECO -AGRICULTURE AS A NEW TREND OF AGRICULTURE | 第39-50页 |
| 5.1 Definition of Eco-agriculture | 第39-40页 |
| 5.2 Characteristics of Eco-agriculture | 第40-44页 |
| 5.3 The Advantages of Eco-agriculture | 第44-46页 |
| 5.4 The Practice of Eco-agriculture in the United States | 第46页 |
| 5.5 The Land Institute and Eco-agriculture | 第46-47页 |
| 5.6 Challenges Faced by Eco-agriculture | 第47-50页 |
| CHAPTER Ⅵ ECO-AGRICULTURE, TRADITIONAL AGRICULTURE AND ORGANIC FARMING | 第50-59页 |
| 6.1 | 第50-54页 |
| 6.1.1 An Introduction to the Amish Community | 第50-51页 |
| 6.1.2 The Agricultural Concept of Amish Farming | 第51-54页 |
| 6.2 Organic Farming | 第54-59页 |
| 6.2.1 The Definition of Organic Farming | 第54-55页 |
| 6.2.2 The History of Organic Farming | 第55-56页 |
| 6.2.3 The Motivations of Organic Farming | 第56-57页 |
| 6.2.4 Methods Adopted by Organic Farming | 第57-59页 |
| CHAPTER Ⅶ CONCLUSION | 第59-62页 |
| WORKS CITED | 第62-63页 |
