Term to describe the mass changeover in land ownership

I am looking for a word to describe the above. The context is where, after the Irish famine in the 1840's, entire villages were abandoned and the land was re-distributed to new tenants. This happened on a mass scale, and I was wondering if there was a term for such a replacement of population with the suitable conotations.

Solution 1:

The most common word is resettlement

the transportation of people (as a family or colony) to a new settlement (as after an upheaval of some kind).

But note that word normally focusses on the people who are moving in. If the focus is on the area becoming occupied with new people, go for repopulation

The act of repeopling; act of furnishing with a population anew.