clearcutting vs deforestation

clearcutting

noun
  • A forestry practice in which most or all trees in a harvest area are cut down. 

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. 

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