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发展“城市中水"的若干问题讨论
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作者 邬扬善 《给水排水技术动态》 2004年第3期9-12,共4页
1对一些重要概念的认识 1.1关于“非传统水资源”城市非传统水资源(新水源)包含:废水、雨水、海水、空中水等。
关键词 水资源 水环境 “城市中水系统” 水质净化 水压
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Chinese urbanization 2050: SD modeling and process simulation 被引量:21
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作者 GU ChaoLin GUAN WeiHua LIU HeLin 《Science China Earth Sciences》 SCIE EI CAS CSCD 2017年第6期1067-1082,共16页
Is Chinese urbanization going to take a long time, or can its development goal be achieved by the government in a short time? What is the highest stable urbanization level that China can reach? When can China complete... Is Chinese urbanization going to take a long time, or can its development goal be achieved by the government in a short time? What is the highest stable urbanization level that China can reach? When can China complete its urbanization? To answer these questions, this paper presents a system dynamic(SD) model of Chinese urbanization, and its validity and simulation are justified by a stock-flow test and a sensitivity analysis using real data from 1998 to 2013. Setting the initial conditions of the simulation by referring to the real data of 2013, the multi-scenario analysis from 2013 to 2050 reveals that Chinese urbanization will reach a level higher than 70% in 2035 and then proceed to a slow urbanization stage regardless of the population policy and GDP growth rate settings; in 2050, Chinese urbanization levels will reach approximately 75%, which is a stable and equilibrium level for China. Thus, it can be argued that Chinese urbanization is a long social development process that will require approximately20 years to complete and that the ultimate urbanization level will be 75–80%, which means that in the distant future, 20–25% of China's population will still settle in rural regions of China. 展开更多
关键词 Chinese urbanization System dynamic (SD) model Scenario simulation
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