[1] Alsharif K, Feroz E H, Klemer A et al., 2008. Governance of water supply systems in the Palestinian Territories: a data envelopment analysis approach to the management of water resources. Journal of Environmental Management, 87(1): 80-94. doi:  10.1016/j.jenvman.2007.01.008.
[2] Bian Y, Yang F, 2010. Resource and environment efficiency analysis of provinces in China: a DEA approach based on Shannon's entropy. Energy Policy, 38(4): 1909-1917. doi:  10.1016/j.enpol.2009.11.071
[3] BSJP (Bureau of Statistics of Jilin Province), 2001-2013. Jilin Statistical Yearbooks. Beijing: China Statistics Press. (in Chinese)
[4] Charnes A, Cooper W W, 1962. Programming with linear fractional functions. Naval Research Logistics Quarterly, 9(3): 181-186. doi:  10.1002/nav.3800090303.
[5] Charnes A, Cooper W W, Rhodes E, 1978. Measuring the efficiency of decision making units. European Journal of Operational Research, 2(6): 429-444. doi: 10.1016/0377-2217 (78)90138-8.
[6] Cubbin J, Tzanidakis G, 1998. Regression versus data envelopment analysis for efficiency measurement: an application to the England and Wales regulated water industry. Utilities Policy, 7(2): 75-85. doi: 10.1016/S0957-1787(98) 00007-1.
[7] DUS NBSC (Department of Urban Surveys, Nitional Bureau of Statistics of China), 2001-2013. China City Statistical Yearbook. Beijing: China Statistics Press. (in Chinese)
[8] Du J, Liang L, Zhu J, 2010. A slacks-based measure of super-efficiency in data envelopment analysis: a comment. European Journal of Operational Research, 204(3): 694-697. doi:  10.1016/j.ejor.2009.12.007.
[9] Dyson R G, Allen R, Camanho A S et al., 2001. Pitfalls and protocols in DEA. European Journal of Operational Research, 132(2): 245-259. doi:  10.1016/s0377-2217(00)00149-1.
[10] Fang Chuanglin, Guan Xingliang, 2011. Comprehensive measurement and spatial distinction of input-output efficiency of urban agglomerations in China. Acta Geographica Sinica, 66(8): 1011-1022. (in Chinese)
[11] Guo Tengyun, Xu Yong, Wang Zhiqiang, 2009. The analyses of metropolitan efficiencies and their changes in China based on DEA and Malmquist Index Models. Acta Geographica Sinica, 64(4): 408-416. (in Chinese)
[12] GPBS (Guizhou Provincial Bureau of Statistics), NBSSOG (NBS Survey Office in Guizhou), 2001-2013. Guizhou Statistical Yearbooks. Beijing: China Statistics Press. (in Chinese)
[13] Hailu A, Veeman T S, 2001. Non-parametric productivity analysis with undesirable outputs: an application to the Canadian pulp and paper industry. American Journal of Agricultural Economics, 83(3): 605-616. doi:  10.1111/0002-9092.00181.
[14] He F, Zhang Q, Lei J et al., 2013. Energy efficiency and productivity change of China's iron and steel industry: accounting for undesirable outputs. Energy Policy, 54: 204-213. doi:  10.1016/j.enpol.2012.11.020.
[15] Hu J L, Wang S C, Yeh F Y, 2006. Total-factor water efficiency of regions in China. Resources Policy, 31(4): 217-230. doi:  10.1016/j.resourpol.2007.02.001.
[16] IMARBS (Inner Mongolia Autonomous Region Bureau of Statistics), 2001-2013. Inner Mongolia Statistical Yearbooks. Beijing: China Statistics Press. (in Chinese)
[17] Johnson A L, McGinnis L F, 2009. The hyperbolic-oriented efficiency measure as a remedy to infeasibility of super efficiency models. Journal of the Operational Research Society, 60(11): 1511-1517. doi:  10.1057/jors.2009.71.
[18] Leleu H, 2013. Shadow pricing of undesirable outputs in nonparametric analysis. European Journal of Operational Research, 231(2): 474-480. doi:  10.1016/j.ejor.2013.05.028.
[19] Li H, Yang W, Zhou Z et al., 2013. Resource allocation models' construction for the reduction of undesirable outputs based on DEA methods. Mathematical and Computer Modelling, 58(5-6): 913-926. doi:  10.1016/j.mcm.2012.10.026.
[20] Li Xun, Xu Xianxiang, Chen Haohui, 2005. Temporal and Spatial Changes of Urban Efficiency in the 1990s. Acta Geographica Sinica, 60(4): 615-625. (in Chinese)
[21] Liao Huchang, Dong Yiming, 2011. Utilization efficiency of water resources in 12 western provinces of China based on the DEA and Malmquist TFP Index. Resources Science, 33(2): 273-279. (in Chinese)
[22] Liu Ruijie, Zhang Zhihui, 2012. Assessment on economic-environmental efficiency of China's industry based on WTP-DEA method. China Population, Resources and Environment, 21(8): 130-137. (in Chinese)
[23] Liu Yu, Du Jiang, Zhang Junbiao, 2007, Estimation on utilization efficiency of agricultural water resource in Hubei Province. China Population, Resources and Environment, 17(6): 60-65. (in Chinese)
[24] Liu Yong, Li Zhixiang, Li Jing, 2010. Comparative study on DEA methods of environmental efficiency measurement. Mathematics in Practice and Theory, 40(1): 85-92. (in Chinese)
[25] Liu Y, Sun C, Xu S, 2013. Eco-efficiency assessment of water systems in China. Water Resources Management, 27(14): 4927-4939. doi:  10.1007/s11269-013-0448-3.
[26] MHURD P R C (Ministry of Housing and Urban-Rural Development, P. R. China), 2001-2013. China Urban Construction Statistics Yearbooks. Beijing: China Planning Press. (in Chinese)
[27] NBSC (National Bureau of Statistics of China), 2014. China Statistical Yearbooks. Beijing: China Statistics Press. (in Chinese)
[28] Qian Wenjing, He Canfei, 2011. China's regional difference of water resource use efficiency and influencing factors. China Population, Resources and Environment, 21(2): 54-60. (in Chinese)
[29] QPBS (Qinghai Provincial Bureau of Statistics), NBSSOQ (NBS Survey Office in Qinghai), 2001-2013. Qinghai Statistical Yearbooks. Beijing: China Statistics Press. (in Chinese)
[30] Romano G, Guerrini A, 2011. Measuring and comparing the efficiency of water utility companies: a data envelopment analysis approach. Utilities Policy, 19(3): 202-209. doi:  10.1016/j.jup.2011.05.005.
[31] Sala-Garrido R, Hernández-Sancho F, Molinos-Senante M, 2012. Assessing the efficiency of wastewater treatment plants in an uncertain context: a DEA with tolerances approach. Environmental Science & Policy, 18(0): 34-44. doi: 10.1016/ j.envsci.2011.12.012.
[32] SBXUAR (Statistics Bureau of Xinjiang Uygur Autonomous Region), 2001-2013. Xinjiang Statistical Yearbooks. Beijing: China Statistics Press. (in Chinese)
[33] SBYP (Statistics Bureau of Yunnan Province), 2001-2013. Yunnan Statistical Yearbooks. Beijing: China Statistics Press. (in Chinese)
[34] Seiford L M, Zhu J, 2002. Modeling undesirable factors in efficiency evaluation. European Journal of Operational Research, 142(1): 16-20. doi:  10.1016/s0377-2217(01)00293-4.
[35] Sun Caizhi, Liu Yuyu, 2009. Analysis of the Spatial-temporal pattern of water resources utilization relative efficiency based on DEA-ESDA in China. Resources Science, 31(10): 1696-1703. (in Chinese).
[36] Sun Caizhi, Xie Wei, Jiang Nan et al., 2010. The spatial-temporal difference of water resources utilization relative efficiency and influence factors in China. Economic Geography, 30(11): 1878-1884. (in Chinese)
[37] Sun Caizhi, Xie Wei, Zou Wei, 2011. Contribution ratio measurement of water use efficiency driving effects and spatial driving type in China. Scientia Geographica Sinica, 31(10): 1213-1220. (in Chinese).
[38] Sun C, Zhao L, Zou W et al., 2014. Water resource utilization efficiency and spatial spillover effects in China. Journal of Geographical Sciences, 24(5): 771-788. doi:  10.1007/s11442-014-1119-x.
[39] Tone K, 2001. A slacks-based measure of efficiency in data envelopment analysis. European Journal of Operational Research, 130(3): 498-509. doi: 10.1016/s0377-2217(99) 00407-5.
[40] Tone K, 2003. Dealing with undesirable outputs in dea: a slaeks-based measure (SBM) approach. GRIPS Research Report Series.
[41] Wang Sansan, Qu Xiaoe, 2011. Research on total factor energy efficiency change of china manufacturing industry considering environmental effects: based on dea-malmquist index empirical study. China Population, Resources and Environment, 21(8): 130-137. (in Chinese)
[42] Worthington A C, 2014. A review of frontier approaches to efficiency and productivity measurement in urban water utilities. Urban Water Journal, 11(1): 55-73. doi: 10.1080/ 1573062x.2013.765488.
[43] Worthington A C, Helen H, 2014. Economies of scale and scope in Australian urban water utilities. Utilities Policy, 31(1): 52-62. doi:  10.1016/j.jup.2014.09.004
[44] Wu Dewen, Mao Hanying, Zhang Xiaolei et al., 2011. Assessment of urban land use efficiency in China. Acta Geographica Sinica, 66(8): 1111-1121. (in Chinese)
[45] Wu J, An Q, Ali S et al., 2013. DEA based resource allocation considering environmental factors. Mathematical and Computer Modelling, 58(5-6): 1128-1137. doi: 10.1016/j. mcm.2011.11.030.
[46] Xu Chaojun, 2009. A study of China' s city scale based on the environment quality. Geographical Research, 28(3): 792-802. (in Chinese).
[47] Yang Liying, Xu Xingyi, Jia Xiangxiang, 2009. Water use efficiency evaluating index system. Journal of Beijing Normal University (Natural Science), 45(5-6): 642-646. (in Chinese)
[48] Yang Yuhong, Yan Baixing, Shen Wanbin, 2010. Assessment of point and nonpoint sources pollution in Songhua River Basin, Northeast China by using revised water quality model. Chinese Geographical Science, 20(1): 30-36. doi: 10.1007/ s11769-010-0030-3.
[49] Zhang C, Liu H, Bressers H Th A et al., 2011. Productivity growth and environmental regulations accounting for undesirable outputs: analysis of China's thirty provincial regions using the Malmquist-Luenberger index. Ecological Economics, 70(12): 2369-2379. doi: 10.1016/j.ecolecon.2011. 07.019.
[50] Zhang Xiang, Hu Hong, Xu Jiangang et al., 2011. Coordination of urbanization and water ecological environment in Shayinghe River Basin, China. Chinese Geographical Science, 21(4): 476-495. doi:  10.1007/s11769-011-0489-6.
[51] Zhou Yixing, Sun Zexin, 1997. Rediscussion on China's urban function classification. Geographical Research, 16(1): 11-22. (in Chinese)
[52] Zhu Peng, Lu Chunxia, Zhang Lei et al., 2009. Urban fresh water resources consumption of China. Chinese Geographical Science, 19(3): 219-224. doi:  10.1007/s11769-009-0219-5