| 1. | Agroecosystems are often highly productive .
农业生态系统通常具有很高的生产力。 |
| 2. | Natural and agricultural ecosystems form a continuum .
自然生态系统和农业生态系统构成一个连续的统一体。 |
| 3. | The world food imbalance is a problem of agricultural ecosystems and their management .
世界粮食生产的不平衡是农业生态系统及其管理部门的一个问题。 |
| 4. | How long can we continue to supplement agroecosystems with energy derived from declining fossil fuel supplies ?
由于矿物燃料供应量下降，我们供应农业生态系统能量能持续多久？ |
| 5. | The ecological functions of weed biodiversity in agroecosystem
农业生态系统杂草多样性保持的生态学功能 |
| 6. | Landscape characters of agricultural ecology system in huangta small watershed
黄塔小流域农业生态系统景观特征探析 |
| 7. | Primary analysis on the successional regulation of agro - ecosystem in shihezi oasis
石河子绿洲农业生态系统演替规律初探 |
| 8. | Agro - ecosystem ' s sustainable development and the quantitative evaluation abroad
国外农业生态系统可持续发展的定量评价研究 |
| 9. | A study on the comprehensive assessment of agro - ecosystem in the three gorges reservoir area
三峡库区农业生态系统综合评价研究 |
| 10. | Nitrogen in wet deposition in shanghai area and its effects on agriculture ecosystem
上海地区氮素湿沉降及其对农业生态系统的影响 |
