Forestation is either growing existing forests (proforestation) or establishing forest growth on areas that either had forest or lacked it naturally. In the first case, the process is called reforestation, or reafforestation while the second is called afforestation.
- Moomaw, William R.; Masino, Susan A.; Faison, Edward K. (2019). "Intact Forests in the United States: Proforestation Mitigates Climate Change and Serves the Greatest Good". Frontiers in Forests and Global Change. 2. doi:10.3389/ffgc.2019.00027. ISSN 2624-893X.
- Nyland, R.D. Silviculture: Concepts and Applications. 3rd ed. 2016. p. 67. link.
- "SAFnet Dictionary | Definition For [reforestation]". Dictionaryofforestry.org. 2008-08-13. Archived from the original on 2012-03-14. Retrieved 2012-02-17.
- "SAFnet Dictionary | Definition For [afforestation]". Dictionaryofforestry.org. 2008-10-23. Archived from the original on 2012-03-14. Retrieved 2012-02-17.