中文摘要：

目前，都市农业的实践遍布世界各地，无论是发达国家还是发展中国家，都将都市农业作为本地区农业生产和城市发展的重要形式。首都北京拥有其独特的地理地形，山区面积占了市域面积的62％，要更好的发展都市农业就必须探寻一条适合这种特殊地理地形发展的新模式。沟域经济概念的提出，给北京山区发展带来了新思路，而“3s”技术用科学的方法将这一理念变为现实。本文详细介绍了沟域经济、“3s”技术以及“3s”技术在沟域经济中的作用，证明将“3s”技术应用于沟域的生态规划、沟域地理信息管理、三维虚拟现实表达等方面是沟域经济发展的重要因素。

英文摘要：

Nowadays, the practice of urban agriculture is all over the world. Either in development country or developing country, the urban agriculture becomes important style of agriculture produce and urban development in this area. Beijing, the capital of China, has its own unique terrain and the mountains-area account for 62%.In order to develop urban agriculture better we must explore a new way which fits for this unique terrain. The present of ditch-area economy brings new idea for developing Beijing mountains-area meanwhile 3S technology makes the idea become the true. The concept of ditch-area economy, 3S technology and the effect of 3S technology in developing ditch-area economy are described in detail in this paper. Finally, we can verify that the application of 3S technology in ditch-area ecological planning, the management of ditch-area geographic information and 3D virtual reality expression is the important factor for development of ditch-area economy.