Due to unique geographical position and climatic characteristics,there are more economic,social,resource,environmental and other problems in urban construction of arid region. Old urban block of Kashgar and typical block of Masdar ecological city of Abu Dhabi are taken as the research objects. Based on summarizing the characteristics of traditional block and newly built ecological block in arid region,comparative analysis on their space forms and environmental designs is conducted,and the association mechanism between ecological adaptability and space form is generalized. From the aspects of block layout,block space,open space and architectural form,ecological design strategy of the block in arid region is proposed,which could provide the reference for development and construction of ecological city in arid region of China.
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