The aim of double ownerships is dividing the land ownerships into two levels of bottom and surface of land.On the foundation, fanner is endowing with an integrity property rights of land.

• 双层所有权意在对农地所有权进行田底和田面两个层次的分割，在分割所有权的基础上，赋予农民一种完整的农地产权，以此突破中国农地制度在所有权改革上的瓶颈。