naturalization

n.

（外国人的）归化；（动植物的）移植；（外国的习惯、语言等的）移入；同化

1. They were anxious to make their naturalization complete.
   他们急切地要完成他们的归化。
2. The naturalization of southern plants in the north takes many years.
   在北方移植南方植物需要好多年。
3. They rejected his petition for naturalization.
   他们拒绝了他的入籍申请。
4. You must fill in the naturalization papers.
   你必须填写入国籍的文件。

Darwin's naturalization hypothesis revisited.
Naturalization and invasion of alien plants: concepts and definitions
The biogeography of naturalization in alien plants
Ecology: Darwin's naturalization hypothesis challenged.
Naturalization, Socialization, Participation: Immigrants and (Non-) Voting
Naturalization of the Flood Regime in Regulated Rivers: The case of the upper Mississippi River
Resolving Darwin’s naturalization conundrum: a quest for evidence
Daehler, C. C. Darwin's naturalization hypothesis revisited. American Naturalist
Cultivation fosters plant naturalization by reducing environmental stochasticity.
The Bancroft naturalization treaties with the German states ... Being a collection of documents and opinions relating to the subject...