中文摘要：

以山东寿光和海南海口的番茄、黄瓜为例，利用《2012蔬菜生产成本统计年鉴》中番茄、黄瓜的成本统计数据和对蔬菜经销商的访谈资料，运用等成本原理，划分了南菜北运和北菜南运的经济边界，认为存在北菜南运和南菜北运的经济边界，且由于不同蔬菜品种南方露地蔬菜生产资源和北方设施蔬菜资源的差异，经济边界各不相同。提出了南、北蔬菜应错季节、错品种发展，明确目标市场和搭建覆盖全国的蔬菜信息平台等建议。

英文摘要：

Based on tomato and cucumber in Shouguang of Shandong province and Haikou of Hainan province,this paper uses cost data from ＂Vegetable Production Cost Statistical Yearbook 2011＂ and interview materials from vegetable dealers as well as isocost principle to divide the economic borders into South-to-North and North-to-South vegetable transfer. It is concluded that the economic borders of South-to-North and North-to-South vegetable transfer did exist. Because of the difference between south- ern outdoor and northern greenhouse vegetable resources, there are different economic borders among different vegetable varieties. Therefore, this paper proposes several suggestions, such as vegetable cultivation planning should be differentiated bewteen southern and northern China according to different sea sons and varieties. In addition,it is necessary to build a nationwide vegetable information platform.