درخت حوزه‌های تخصصی

Ecological destruction in human-dominated landscapes has significant impacts on environment sustainability internationally. Landscape planning can play a role in mitigating the effects of human-related activities. One element of landscape planning involves the analysis of the biological, spatial and social arrangement of areas in an urban environment and identifying characteristics that are underrepresented in urban natural public spaces. In this study, the quality of public spaces resulting from the regeneration of Tehran’s river-valleys’ natural environment is assessed in relation to landscape ecology principles. We use the components of Bio-spatial-social Logic, Eco-environmentalsocietal Function, Mind-experiential-aesthetic Logic and Eco-environmental-societal Excellence, as the components of a framework, to exامینe the quality of existing urban natural public spaces and to define deficiencies in the current urban landscape system. Based on multivariate ecological, environmental and societal space, the evaluation made by this component model indicates that the principles of landscape ecology have been disregarded in Tehran’s Rivervalleys land development and various ecological problems have been evolved from its river-valleys’ regenerating projects. Our criterion is based on the alteration of landscape’s content composition and spatial configuration variables to eco-environmental-societal excellence features. The analysis provides a systematic, function evaluation of urban natural public spaces, in three hierarchical levels of Environmental Equilibrium, Geographical-anthropological Sustainability and Eco-environmental-societal Excellence features. Some strategies are introduced for Tehran’s rivervalleys’ landscape variables change.

The intervention of urban design in Irans architectural structures has been for many years a challenging issue for architects and urban designers over their professional realm. The preservation of architectural structures in Iran has always resorted to extremes. This control and direction has sometimes resulted in exclusion of architecture position and has sometimes, once faced with lack of proper direction, led to confusion in urban realm and environment. This study reviews the theoretical literature including issues such as context, urban design realm as well as urban design control and then investigates a number of case studies selected from urban design measures carried out in Iran in order to identify the weaknesses and the reasons behind them. In regard to the theoretical basis achieved through literature review and the current procedures in Iran and also an analytic framework research, it seems that through modification of the executive system, implementation process for projects, application of urban design review tools for projects controlling, attention to gradual enlargement of cities and lack of certainty in design predictions in urban design process, the current challenge in Iran among architects and urban designers can be minimized. So the results of this analysis will illustrate a new vision- a native one - for alternative policies in relation between architecture structures and urban design controls.