Landscapes contribute to the formation of local cultures and are a basic component of a country’s natural and cultural heritage. They help solidify a region’s identity and play an important part in people’s lives in urban areas and in the countryside and in wealthy and deprived neighborhoods. Landscapes play a vital role in personal and social developments. Thus, the entire society has a duty to properly protect and manage them. However, only a handful of scientific researches have been conducted about the role of landscapes and their role in sustaining natural environments. A large number of theorists believe in the relationship between humans and nature and ways to preserve and use this relationship in prepared environments but there has rarely been a scientific research to reiterate this necessity. This paper aims at studying the role of landscapes in creating a constructive relationship between people and natural environments as a key factor contributing to development. As a case study, we have looked into the river Khoshk in Shiraz with a three-dimensional approach focused on the river, the city and the people. The overall aim is to integrate this approach into a decision-making system, allowing us to identify factors contributing to the formation of a landscape that can help sustain the environment around the river Khoshk.