The tate can change collective land ownership into sate land ownership by expropriation.It is a one-way flowage, and is the only style of land ownership flowage.

• 国家可以通过土地征用将集体土地所有权变为国有土地所有权，而且这种流动是单向的不可逆的，是我国目前土地所有权流动的唯一方式。