Comparative law notes
In China, the concept is known as 时效取得土地所有权.
There are multiple definitions - click on the translation that matches your context.
逆权管有
名词
full
adverse possession
noun
Definitions of adverse possession
a way of gaining title to real property from another by retaining possession for a period of time established by law and complying with certain conditions
He acquired the property through adverse possession.