2000—2011年西安市水环境演变与社会经济发展关系的量化分析

Statistic analysis of relation between Xi'an water environment revolution and development of society and economy from 2000 to 2011

基于2000—2011年西安市水环境、社会经济发展状况,综合采用频度分析法和主成分分析法,选取并构建西安市水环境与社会经济发展指标体系,借助水环境与社会经济发展协调度模型,对西安市12年间水环境与社会经济发展的协调性进行量化分析。结果表明:2000-2005年间西安市各项环保设施仍处于建设时期,西安市水环境趋势呈现波动上升,其发展水平低于社会经济发展水平;2006—2011年间水环境与社会经济发展呈现同步增长,缘于西安市"十一五"期间实施"环境优市"方略,注重人居生态环境的改善,强调建设资源节约和环境友好型社会等各项政策的贯彻落实,2006—2011年间水环境综合效益增长幅度大于2000—2005年间。指出2000—2011年西安市水环境与社会经济发展总体处于协调上升趋势,但水环境略滞后于社会经济发展;随着西安市社会经济的不断发展及人口数量的增加,西安市水环境质量仍将面临巨大挑战,还应继续注重水环境的保护与防治。

Based on the water environment and development status of social and economic of Xi＇an in the year of2000 and 2011,frequency analysis and principal component analysis（ PCA） are used to establish the water environment and development of social and economic indicator system of Xi＇an. With the help of water environment and development of social and economic coordination model,quantitative analysis is conducted on the coordination level of water environment and development of social and economic of Xi＇an in the recent 12 years. The result shows that： during the years of 2000—2005,environmental devices of Xi＇an were still under construction,making water environment trend of Xi＇an increasing with fluctuation,whose development level was lower than the social and economic development level; during the years of 2006—2011,water environment and social and economic development increased synchronously due to ＂optimizing the city with environment＂executed during the eleventhfive-year. Some policies focusing on the improvement of human settlement and ecological environment were emphasized and carried out to build an energy-saving and environment-friendly society. The overall benefit growth rate of water environment in the years of 2006—2011 was higher than that in the years of 2000—2005. In general,water environment and social and economic development of Xi ＇an in the years of 2000—2011 increased harmoniously,while water environment development turning out to be slower compared to social and economic development. With the constant social and economic development in Xi ＇an and increasing population,water environment quality in Xi＇an still faces huge challenge. Protection of water environment and prevention of water pollution should still be focused on.