An Investigation in to the Definitions & Fundamentals of

Landscape Architecture, as a newborn knowledge and profession, with the aim of enhancing & improving environmental qualities of urban-rural open spaces, is one of the main disciplines of environmental design. In Iran, unfortunately there has been wrong and superficial understanding about it. From the other viewpoint, practical domains and areas of this discipline have been increasing recently. Thus, giving a clear definition & theoretical fundamentals of landscape architecture in order to correct probable misunderstanding about it is the main goal of this research. This article intends to identify the correct understanding about landscape architecture, in the base of investigating definitions, historical background, values & approaches & practical domain of this profession. In the first step, the background of the landscape architecture analyses as a three part (disciplinary- artistic- professional). In the next step, the main definitions of this field explain and classify to five conceptual categories. Values and approaches of landscape architecture survey according to the recent theories. Finally, practical and professional domains of this field, which landscape architects work on them, identify.