Water Safety Assessment Of Anyang City Based On WPI System

The water environment and the harmonious development of human society,is a prerequisite for guarantee the stability of urban rapid development.Urban water supply safety of calendar year evaluation analysis and the development trend of future urban water supply safety forecast,and formulate the corresponding safeguard measures,is of great significance to the harmonious development of the city.This study introduces Water Poverty Index-WPI system,Using principal component analysis to determine the weights,The effect factors of anyang city water poverty has carried on the screen.Selects the influential factors of anyang city water poverty index analysis of time series(2005~2012).Evaluation of water security in Anyang city at the macro level,using the single factor evaluation method on the microscopic,to evaluate the various indicators.According to the results put forward measures to strengthen the anyang city water supply security.This study water poverty index in anyang city as an example,carries on the quantitative analysis of anyang city water supply safety.The results show that,on the whole,the water supply security levels of Anyang city have been gradually rising trend from 2005 to 2020.In the WPI system,Water resources subsystem and Environment subsystem have low scores,but overall the safety level enhances unceasingly.The 20 single indexes,such as Water quality,Per capita GDP and Gini coefficient,The per capita public green area of indicators are in a low security level.The rest of the indicators security levels haven't changed much,also on the rise as a whole.According to the results from 2015 to 2020,because of the drainage systems of south-to-north water transfer project,the safety level of anyang city water supply has been a qualitative leap.Finally aiming at the problems in the safety of water supply system is put forward some Suggestions,aimed at improving the anyang city water supply safety level,also provides some reference for later study of anyang city water supply safety.