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学者姓名：李云燕
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摘要 ：
The causes of frequent haze in Beijing-Tianjin-Hebei were truly complex, but the researches on the interrelation between haze and socio-economic factors were still lack of quantitative analysis. Considering that the interrelation under different regimes showed different change rules, the modified panel threshold regression model was applied to address different policy challenges. The results showed that the single threshold effect was significant while the added value of the tertiary industry or public transport was selected as the threshold variable. When the added value of the tertiary industry was less than the threshold value, the development of the secondary industry and the rising number of cars would increase PM2.5. Therefore, the expansion of the public transport would be an effective measure to ease the haze. When the added value of the tertiary industry exceeded the threshold value, the continued development of the secondary and the tertiary industry would reduce PM2.5, but the relief function achieved by expanding the public transport would be weakened slightly. Meanwhile the number of vehicles would become the primary factor influencing PM2.5. When the number of public transport was closer to its threshold value, the opportunity cost of PM2.5 reduction would be less and the increase of energy consumption would always increase PM2.5. As there were nonlinear relations between the haze and the socio-economic factors, the policy formulation of PM2.5-reduction should be combined with the threshold effect. © 2017, Editorial Board of China Environmental Science. All right reserved.
关键词 ：
Regression analysis Regression analysis Energy utilization Energy utilization Economic and social effects Economic and social effects
引用：
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| GB/T 7714 | Li, Yun-Yan , Yin, Chen-Xi . Threshold effect of socio-economic factors influencing PM2.5 in Beijing-Tianjin-Hebei [J]. | China Environmental Science , 2017 , 37 (4) : 1223-1230 . |
| MLA | Li, Yun-Yan 等. "Threshold effect of socio-economic factors influencing PM2.5 in Beijing-Tianjin-Hebei" . | China Environmental Science 37 . 4 (2017) : 1223-1230 . |
| APA | Li, Yun-Yan , Yin, Chen-Xi . Threshold effect of socio-economic factors influencing PM2.5 in Beijing-Tianjin-Hebei . | China Environmental Science , 2017 , 37 (4) , 1223-1230 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
At present, PM2.5 concentration in many provinces and cities in China are over the standard value, which is particularly serious in the regions with the leading level of economic development, such as Beijing-Tianjin-Hebei Region, Yangtze River Delta and Pearl River Delta. The sources of PM2.5 have attracted great attentions in all sectors of society. By analyzing the related literatures about different cities in different regions and combining with the latest source analysis results published by environmental protection administration, the PM2.5 source analysis in three key regions mentioned above is compared and discussed.The results show that among the three key areas, vehicle emission is the primary source of pollution in Beijing, Shanghai, Hangzhou, Guangzhou and Shenzhen. For second and third tier cities, PM2.5 sources are mainly coal-fired fly ash and dust pollution. Therefore, to reduce the pollution of PM2.5, reduction of the vehicle emission is the urgent task, which is also suggested to combine with the control of coal-fired fly ash and dust pollution. Finally, the further development directions of PM2.5 source analysis are proposed, which is expected to serve a reference for formulation of feasible policy measures to reduce the pollution of PM2.5. © 2017, China National Chemical Information Center. All right reserved.
关键词 ：
Key area; PM2.5; Review; Source analysis Key area; PM2.5; Review; Source analysis
引用：
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| GB/T 7714 | Li, Y.-Y. , Ge, C. . Research progress of PM2.5 source analysis in three main regions of China [J]. | Modern Chemical Industry , 2017 , 37 (4) : 1-5 and 7 . |
| MLA | Li, Y.-Y. 等. "Research progress of PM2.5 source analysis in three main regions of China" . | Modern Chemical Industry 37 . 4 (2017) : 1-5 and 7 . |
| APA | Li, Y.-Y. , Ge, C. . Research progress of PM2.5 source analysis in three main regions of China . | Modern Chemical Industry , 2017 , 37 (4) , 1-5 and 7 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Low-carbon economy is a new development approach that is generated in the condition of the global climatic change and energy crises. Developing low-carbon economy and building low-carbon city are doable avenues on the premise of China's commitment to limit greenhouse gas emission. This paper studied the meaning of low-carbon development, constituted an overall merit index system and evaluation method, investigated an implemental approach of low-carbon, and proposed policy measures of developing low-carbon city.
关键词 ：
low-carbon economy low-carbon economy evaluation method evaluation method implemental approach implemental approach low-carbon city low-carbon city
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Li, Yunyan . Study on the Evaluation Method and Implemental Approach of Low-Carbon City [C] . 2010 : 877-881 . |
| MLA | Li, Yunyan . "Study on the Evaluation Method and Implemental Approach of Low-Carbon City" . (2010) : 877-881 . |
| APA | Li, Yunyan . Study on the Evaluation Method and Implemental Approach of Low-Carbon City . (2010) : 877-881 . |
| 导入链接 | NoteExpress RIS BibTex |
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