Urban Ecological Environment Characteristics in Arid Area and Its Oasisization

City of the arid area is also known as the oasis. After analyzing its occurrence and environment,it is noticed that expansion of city already broken away from the development track of the oasis type recently,which is similar to the global urban mode with the common disadvantages of urbanization. The position receive strong influence of desert climate, relatively harsher than other cities. Arid district resident lived and labored for a long time relying on the oasis , the city that appears in early days also emerges from the womb of the oasis. Now we also call it oasis, but its environment has changed, in some sense, these cities look like the desert being constituted with the desert of cement . We launch the ecological urban construction for improving the city habitat as the goal in the global at present, city of arid district should begin from its position, regard oasis as the urban construction object, improve resident environmental quality. We should imitate the oasis, build shelter forest to separate the desert on the periphery , build trees that line a street, form similar shelter belts of farmland in urban, reconstruct oasisization of urban environment with certain vegetation scale , improve urbanite's living conditions, back to the oasis which arid district resident rely on from generation to generation.