Modified PCA for Water Use Efficiency Research

Abstract:

In order to analyze the water use efficiency of Jiangsu by the method of quantitive research, this article takes the water use amount per ten thousand Yuan GDP as object of study, and discusses the influencing factors of water use efficiency to give the suggestion of policy , regular and control. Theory analysis and expects consulting have been used to get 21 potential influencing factors. Then we get the regression equation which contains water use amount per ten thousand Yuan GDP as the dependent variable, and 21 mentioned factors as independent variables through introducing collected factors’ dates in the period of 1997~2010 into the stepwise regression which is on the basis of principal component analysis. As a result, the major four factors have been got: irrigation area per capita, Industry polluted water standard drainage, education cost, proportion the output value of tertiary industry accounting for of GDP. And this research works for the water use efficiency red line investigation in the future.

• Periodical: Advanced Materials Research (Volume 1051)
• Pages: 482-488
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1051.482
• Online since: October 2014
• Authors: Ren Fu Jia*, Jun Wei, Hai Jin
• Keywords: Principal Component Analysis (PCA), Stepwise Regression, Water Use Amount per Ten Thousand Yuan GDP, Water Use Efficiency

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