agroforestry vs forestation

agroforestry

noun
  • An agricultural approach of using the interactive benefits from combining trees and shrubs with crops and/or livestock. 

forestation

noun
  • The act of planting a forest. 

  • The conversion of a habitat to forest. 

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