Traditional orchard in Qazvin, a urban edge with efficient nature

edge of the city of Qazvin, formed from an artificial nature and is a historical species of the edge of the city. An artificial nature made by human, called traditional orchard of Qazvin rooted in millennia of Iran's history. Traditional orchard has a multi-layered communication with the city, but its physical confrontation with the city forms at the edge of it. The aim of the present study is to introduce a piece of performance depth of a unique Iranian sample for a good edge of the city by analyzing and assessing the characteristics of traditional orchard in Qazvin. The research method is interpretive-historical in identifying the research topic and features of the research topic explored, analyzed and summarized through the phenomenological method. At first glance, the subject of the edge of the city, seems to be a formal challenge, but it is influenced by the various layers of the city. Functions of the edge of the city, has a great impact on its reliability and shape; thus the main challenge in the present study is rooting functions of the edge of the city of Qazvin. The main function of the orchard is supplying the needs of the city of Qazvin in different ages. Providing stable conditions for the city, by inhibiting the natural amenity, such as floods, annoying winds, draught and providing suitable conditions for water supply and livelihood of citizens, and even creating social-cultural features are among functions of the orchard.