spatial autocorrelation analysis of chinese inter-provincial industrial chemical oxygen demand discharge空间自相关分析的中国省际工业化学需氧量排放.pdf

Int. J. Environ. Res. Public Health 2012, 9, 2031-2044; doi:10.3390/ijerph9062031 OPEN ACCESS International Journal of Environmental Research and Public Health ISSN 1660-4601 /journal/ijerph Article Spatial Autocorrelation Analysis of Chinese Inter-Provincial Industrial Chemical Oxygen Demand Discharge Xiaofeng Zhao 1, Xianjin Huang 2,* and Yibo Liu 3 1 School of Government, Nanjing University, 22 Hankou Road, Nanjing 210093, China; E-Mail: zhao-xf@126.com 2 School of Geographic and Oceanographic Sciences, Nanjing University, 22 Hankou Road, Nanjing 210093, China 3 International Institute for Earth System Sciences, Nanjing University, 22 Hankou Road, Nanjing 210093, China; E-Mail: yiboliu@ * Author to whom correspondence should be addressed; E-Mail: hxj369@. Received: 9 April 2012; in revised form: 15 May 2012 / Accepted: 15 May 2012 / Published: 25 May 2012 Abstract: A spatial autocorrelation analysis method is adopted to process the spatial dynamic change of industrial Chemical Oxygen Demand (COD) discharge in China over the past 15 years. Studies show that amount and intensity of industrial COD discharges are on a decrease, and the tendency is more remarkable for discharge intensity. There are large differences between inter-provincial discharge amount and intensity, and with different spatial differentiation fe