Research on Influential Factors and Trends of the Comprehensive Index of Environmental Quality in Nanjing City

Abstract

In order to answer following two questions, One is the influence factors and the influence degree of Nanjing comprehensive index of environmental quality,Another is in the future five years Nanjing comprehensive index of environmental quality trend prediction. This paper begins with a qualitative analysis of factors affecting the environmental quality in Nanjing City, resulting in the classification of these factors according to their importance and significance by using the Grey Correlation Analysis method; Based on the fact that environmental quality n in Nanjing system is gray, this paper established the Grey forecasting model GM (1, 1), 2012 ~ 2016 Nanjing comprehensive index of environmental quality was forecast. This paper studies showed that Nanjing environmental quality is the basic health; As long as continue to strengthen the work of environmental management, in the next five years, Nanjing environmental quality will remain stable.