This article shall not be construed to authorize a registered professional forester to practice civil engineering as defined in Chapter 7 (commencing with Section 6700) of Division 3 of the Business and Professions Code or to practice land surveying as defined in Chapter 15 (commencing with Section 8700) of Division 3 of the Business and Professions Code or to practice landscape architecture, as defined in Chapter 3.5 (commencing with Section 5615) of Division 3 of the Business and Professions Code.