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[ScienceDirect, via Biblio-SHS] Auteur : Shuxiao Wang, Jiming Hao Paru dans : Journal of Environmental Sciences, Volume 24, Issue 1, January 2012, Pages 2-13 Abstract This article analyzed the control progress and current status of air quality, identified the major air pollution issues and challenges in future, proposed the long-term air pollution control targets, and suggested the options for better air quality in China. With the continuing growth of economy in the next 10-15 years, China will face a more severe situation of energy consumption, electricity generation and vehicle population leading to increase in multiple pollutant emissions. Controlling regional air pollution especially fine particles and ozone, as well as lowering carbon emissions from fossil fuel consumption will be a big challenge for the country. To protect public health and the eco-system, the ambient air quality in all Chinese cities shall attain the national ambient air quality standards (NAAQS) and ambient air quality guideline values set by the World Health Organization (WHO). To achieve the air quality targets, the emissions of SO2, NOx, PM10, and volatile organic compounds (VOC) should decrease by 60%, 40%, 50%, and 40%, respectively, on the basis of that in 2005. A comprehensive control policy focusing on multiple pollutants and emission sources at both the local and regional levels was proposed to mitigate the regional air pollution issue in China. The options include development of clean energy resources, promotion of clean and efficient coal use, enhancement of vehicle pollution control, implementation of synchronous control of multiple pollutants including SO2, NOx, VOC, and PM emissions, joint prevention and control of regional air pollution, and application of climate friendly air pollution control measures.

DOI: http://dx.doi.org.gate3.inist.fr/10.1016/j.landusepol.2011.11.010 [ScienceDirect, via Biblio-SHS] Auteur : Jing Wang et al. Paru dans : Land Use Policy, Volume 29, Issue 4, October 2012, Pages 737-749 Abstract China has extremely scarce land resources compared to the world average. There is an urgent need for studies of the current situation and the trends in land-use change and assessment of the performance of land policies in China. Assessment of land-use change has long been hindered by a lack of accurate and reliable data. This paper uses the data obtained from the national land surveys of 1996 and land-use change surveys from 1997 to 2008, to analyze changes in land use and the policy dimension driving forces related to the changes, especially cultivated land, forestry land, grassland, as well as developed land. The aim of this analysis will be to derive the physical, social and economical driving forces of those changes to grasp the trends in land-use change and the effects of land policies and to formulate strategies for the protection and sustainable use of agricultural land. The results indicate that, although the overall change in land use was not large, cultivated land was significantly reduced and developed land rapidly increased. A great deal of high quality cultivated land was changed to developed land and low quality cultivated land generated from unused land, which has resulted in a serious threat to food supplies in China. Predictions using the methods of linear extrapolation and a BP neural network indicate that it is impossible to keep to a target of 0.12 billion hectares of cultivated land in the future under the mode of economic development used between 1996 and 2008. The results also indicate that the implementation of the laws and regulations about controlling the developed land and preserving cultivated land had significant effects on changes in land use, especially cultivated land and developed land. The results sugges

[ScienceDirect, via Biblio-SHS] Auteur : Xi-Zhang Shan, School of Geographical Sciences, South China Normal University, No. 55 Zhongshan Avenue West, Tianhe District, Guangzhou 510631, PR China Paru dans : Urban Forestry & Urban Greening, Volume 11, Issue 2, 2012, Pages 211-217 Abstract Urban green spaces serve a variety of residents with various perceptions, preferences and demands. Their effective governance and precision provision increasingly require public input. Due to the unique political regime, public decision-making in China has long been controlled by governments with the public neglected. With increasing civic consciousness in recent years in urban China, this research investigated attitudes and willingness toward participation in planning, management and design of urban green spaces in Guangzhou. Face-to-face questionnaire surveys were conducted at the 24 green sites across the city with 595 respondents successfully interviewed. The results demonstrated the positive attitudes and strong willingness toward participation despite socioeconomic variations, fitting into a global trend of increasing civic consciousness and strengthening the theoretical base of public participation. Practically, the positive findings lay a sound social foundation for the participatory decision-making in urban China, and help to drive local governments more open and inclusive and develop effective governance strategies and mechanisms to promote public participation in decision-making of urban green spaces.