Beijing Urbanization On Urban Water Affect The Mechanism Study

With the rapid development of urbanization, city becomes the most important space for people to live. But there are many city questions including shortage of water, which has been an obstacle for the city and the whole human being to realize the sustainable development. For the future, how to harmonize the conflict between the rapid development of urbanization and the shortage of water is the crux to realize the sustainable development. Beijing as the capital of China also has the same question during its development, now the shortage of water is the choke point for Beijing to develop. So it is very important to discuss the inherent development law of water use and the relationship between urbanization and the use of water, which can be the foundation to plan the developmental path and policy for Beijing. All of these can advance the sustainable development for Beijing.Combining the development phase and mode of Beijing urbanization (the proportion of non-agricultural population), the whole thesis encircles two main aspects including the process of population non-agriculturalization and economic structure to discuss the effect caused by urbanization on water use. The effect refers to not only total water use, but also the sector structure and spatial structure of water use. The process of non-agricultural population growth has strong effect on total water use and spatial structure of water use, while the adjustment of economic structure also can influence the sector structure of water use.According to the logistic curve, Beijing urbanization stepped into anaphase after 1996, before which it had been in the accelerating phase since 1949. During these years the urbanization level of Beijing exceeds industrialization level all the time. Recently Beijing adjusts the economic structure to promote economic development, and the last twenties years Beijing has received two good results, one of which is the economic rapid development, the other is the steadiness of water use. The results have direct relation with the adjustment of economic structure. From the space viewpoint, different district has different adjustment of economic structure, so its effect on water use is unlikeness. Commonly the industrial water use of district in mid-industrialization or post- industrialization is in decline, and in steady-going if the district is in pre- industrialization. All these have proved that the upgraded economic structure is very important for saving water.With the urbanization advancing, the non-agricultural population increasing, andthe effect of beautifying environment, the living water use for Beijing will be going up not only in town but also in suburbs, and different district has different urbanization, so the living water use in spatial distribution will be of new character.At last, the thesis forecasts the different water use for Beijing in 2010, and proposes countermeasures which can solve the questions existed in Beijing urbanization, to build the foundation of advancing the sustainable development for Beijing.