Abstract. This paper presents the physical characteristics of the soils in different terroir units from Romania it is a guide for soil characterization as a fundamental factor of a terroir. The soil's physical characteristics (texture, edaphic useful volume, gleyzation and stagnogleyzation processes), are ecological factors in the growth and development of the production of vine. Contents of clay < 0,002 mm, soil reaction and CaCO3 content are the main characteristics which influence plant, and they together with the processes generated by ground and stagnant water give rise to asphyxiation chlorosis ferro-calcium and salinization.

Key words: terroir, ecopedological factors of terroir, chlorosis, active CaCO3 content, vine, edaphic useful volume

Presentation: oral