deforestation vs disafforestation

deforestation

noun
  • The process of destroying a forest and replacing it with something else, especially with an agricultural system. 

  • A transformation to eliminate intermediate data structures within a program. 

disafforestation

noun
  • The change in the legal status of an area from forest to that of normal land, entailing the loss of forest laws. 

How often have the words deforestation and disafforestation occurred in a corpus of books? (source: Google Ngram Viewer )