Security Evaluation Research of Rural Drinking Water Based on Improved Entropy Weight - fuzzy matter-element Coupling Model

摘要

Twelve evaluative indicators are selected in three aspects: water quality, water quantity as well water supply. The entropy weight of each indicator is determined by the means of improved entropy weight method. The coupling model which combines the entropy weight with Euclid approach degree is constructed on the basis of the fuzzy element theory. Distribution maps of security status about rural drinking water in Henan province are obtained by the way of Geographic Information System. All the researches indicate that the status of water quantity of rural drinking in Henan province is security; the status of water quality, water supply and overall situation are basic security. They have reflected the essence of rural drinking water in Henan province to some degree. Therefore, we can make it clear that this method is reasonable even reliable, the results coming out of which are believable. After all, it has provided an inventive method for security evaluation on rural drinking water.