Kentsel Peyzajlarda Yol Kenarı Yeşil Alanların, Kent Ekosistemi Çerçevesinde Değerlendirilmesi

Abstract

Due to intense urbanization pressure, many ecological cycles are disrupted in the cities. The deterioration of the green network increases urban heat island effects, rainwater rapidly passes to runoff, artificial micro-climatic formations (wind-shade canyons, etc.) are seen depending on artificial topography, and particulate matter and emission rates rise. One of the most important ways to keep these changes in urban landscapes under control is to ensure the continuity of the green network. Roadside green areas are accompanying road networks in the urban environment and through their linear structure, they have a binding character between green units in the green system. These structures are important parts of the green system, they are absorbing the negative effects of roads and they are constituting habitats for some living creatures. On the other hand, their contribution to the urban ecosystem in terms of the quality of life, planning, design, and management decisions was ignored. In this article, the roadside green areas belonging to the green network of Beşiktaş, District of Istanbul are evaluated according to the unit-corridor-matrix approach within the framework of landscape ecology and in terms of sustainability. For this purpose, firstly, landscape pattern was examined with the help of landscape and class-level landscape metrics. Landscape-level metrics were mapped. Then, the ecological functions of the roadside green areas on a sample area were evaluated. The obtained findings were interpreted according to the urban green system, ecological, functional, and aesthetic perspectives, and suggestions were made.