An increased demand for forest resources over the years has resulted in more intensive and complex management systems. Similarly the technology and skill required to implement these management systems has also become more demanding. The profession of forestry has evolved to include at least five distinct broad levels of competence based on education and experiences.
Smith, David W.
"Forest Technicians and the Forestry Profession,"
Ames Forester: Vol. 58
, Article 4.
Available at: https://lib.dr.iastate.edu/amesforester/vol58/iss1/4