Research On Spatial-Temporal Difference Of Industrial Water Utilization Increasing Quality In China

In the context of water resources shortage, the contradiction between its demand and supplement has become more acute in China, which has become the major bottle-neck for the development of the society and economy in some regions. With the continuous progress of the modernization and industrialization, including the economic leveling up, economic restructuring accelerating and technological innovation and industrial upgrading boosting, the demand of Industrial water utilization has grown, to improve the Industrial Water Utilization Increasing Quality is an important measure to solve the current shortage of water resources in China. Therefore, the study of influence factor Chinese industry, the impact of water quality of growth factors, development of appropriate water demand management measures have important practical significance.Based on the panel dataset of water utilization and social economy from 1997 to 2008 in China, this paper analyzed the change of industrial water utilization of 31 administerial regions (except Taiwan, Hong Kong and Macau) by using Complete Decomposition (CD) model, and combined with the marginal thought of economics calculated the marginal effects of three major determinants (economic growth, technological changes in restructuring), then, research the spatial and temporal variation for the marginal effects. In order to evaluate the increasing quality about utilization on industrial water, the increasing quality index of all the units were computed from 1997 to 2008, and the spatial characteristics were also analyzed by this index combined with the methods of Exploratory Spatial Data Analysis (ESDA), Gini coefficient and Theil index. This paper also researched growth factors of water quality by constructing multiple regression models in China and industry water use.The main research results and conclusions are as follows:(1) The economy growth increases water utilization, at the same time, water utilization intensity and industrial construction decreases water utilization. The increasing quality about industrial water utilization in China has appeared a trend of improvements in all parts and periods, and it also has a coincidence with the regional economic development. There are two significances about increasing quality of industrial water utilization, one is spatial autocorrelation, and the other is regional spatial differences, so the increasing quality of industrial water utilization has a large space to improve. (2) From 1997 to 2008, there exists a rise tendency in industrial water utilization increasing quality in the whole country and the local region, but the difference of rise speed in different regions is obvious, and the difference has a increasing tendency, the difference among the east, middle and west region of China and the difference in the east region are dominant in the total difference. The difference of regional economic developing level is the most significant factor in China. Increasing the investment of water utilization and management to the middle and west region of China properly and balancing the economy development are the keys to promote the industrial water utilization increasing quality across-the-board.(3) All kinds of regional industry water use affect the quality of growth is not entirely consistent with changes in per capita GDP as the impact of four common factors of the study area, indicating the strength of economic strength, the quality of growth of the industry, change water in general, other, water intensity of growth and industrial water quality change negative, indicating the implementation of scientific and technological progress, reduce water consumption intensity, industrial water use to improve the quality of growth in China is significant.