Comprehensive Appraisal And Optimization Of Urban Eco-System In Oasis City

Cities are the centers of mankind gathering and the result that economy, politics, science and technology of human society developed into certain stage. They also are the assembled places of material progress and spiritual civilization. With the development of the cities, the changes that the human beings made of the urban environment are more and intensive. These changes destroyed the original ecological balance in the cities. So it is essential to regard cities as ecosystem, and the research of urban ecosystem(UES) becomes a research focus. This is also a new thinking mode of studying city problems from ecology angle.Because the history of UES research is relatively short, a lot of theory and methodology questions are still in stage of probing now. The basic theory frame of UES has not been set up totally yet. Especially the demonstration research of oasis city is further little. Oasis city forms and develops on the basis of oasis. In view of this, after analyzing and appraising UES theoretically, this paper puts forward relevant optimization countermeasures and means. As a typical oasis city, Urumqi, the capital of Xinjiang Uygur Autonomous Region and the center of the whole autonomy's politics, economics and literature, is limited by the natural conditions such as its landform, geomorphy, vegetation and hydrological conditions when it develops its economy. Then, the paper combines urumqi ecosystem and makes a demonstration research. This paper can be divided into four parts:...