干旱区生态环境知识资源中心

Urban environment due to presence of artificial materials is characterized by modified climate. We focused on evaluation of urban areas through microclimatic factors (surface temperature, air temperature, relative air humidity) between canopy layer of sites and non-vegetated sites as well as between localities together. Urban trees can eliminate extreme climatic conditions in urban areas during the hot summer days and it has, moreover, a cooling effect on surface temperatures. Parts with green spaces affect as green oases or more precisely as urban cool islands in smaller scale. However, microclimate at different part of city varies according to ratio of green spaces (primarily trees) to built-up layouts. Localities are represented by five selected types of urban built-up layout: Compact layout (in the town historical centre), Detached layout (family houses with gardens), Industrial layout (industrial part of town), Mixed layout (adjacent to the town park) and Housing estate (typical socialist blocks of flats). Microclimatic factors were obtained by method of the surface thermal monitoring in 2015 (June August).