Natural conditions influence differently the structure of the forest fund in the Codrilor Străsenilor forest. Cultivated forestry contributes to obtaining structures close to the vegetation conditions offered by a certain territory. Over time, regardless of the nature of the factors that influenced the forest, differences in the weight of species were identified. The sustainable management of forests is closely related to the natural factors of pedological, hydrological and climatic order, and each component of the natural conditions can contribute to the differentiation of the growth conditions of woody vegetation. The basic species in Codrii Străsenilor are the sessile oak, the pedunculated oak and, to a lesser extent, the beech. Changing the structure of forests, without taking into account aspects related to vegetation conditions, is the consequence of the "aggressive" application of silvotechnical works through uncontrolled extractions and the introduction of exotic species into culture. The introduction of exotic species into forestry without a prior study of the impact and their resistance to the new conditions generated significant losses of stands after the first generation. A significant percentage of natural forests have derived into partially derived, fully derived and underproductive. In order to identify the location of the natural conditions, the mapping of the forest structure is carried out according to the natural conditions (geomorphology, geology, hydrology, soil, etc.) of the location of the Strășeni Silvocinegetic Enterprise.