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《环境与可持续发展》2015,(6)
<正>近日发布的《中共中央关于制定国民经济和社会发展第十三个五年规划的建议》(以下简称《建议》),生态环境部分亮点颇多,全篇共四次出现"最严格",其中,三次落在生态环保领域。那么,如何让生态环境约束变硬,"十三五"环保产业面临哪些发展机遇,环保企业如何进行市场布局?带着这些问题,《每日经济新闻》记者(以下简称NBD)近日专访了国务院发展研究中心资源与环境政策研究所副所长常纪文。三个"最严格"划"红线" 相似文献
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7月16日,联合国《2002中国人类发展环境报告》研讨会在京举行。“中国正站在十字路口,如果延续既有的政策,将是一条‘危险的道路’。”这份由联合国开发计划署(UNDP)和瑞典斯德哥尔摩国际环境研究院共同合作的《报告》指出,“中国应走‘绿色改革之路”。中国的环境恶化到什么程度?中国环保面临怎样的困境?出路何在?华夏时报记者韩福东为此走访了北大中国经济研究中心的副主任胡大源博士。记者:联合国《2002中国人类发展环境报告》认为中国环境处在一个危险 相似文献
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Fahe Chai Zongshuang Wang Yufei Tan Min Guo Miaomiao Cheng Yanyue Gu Siyu Chen Xuefang Wu 《环境科学学报(英文版)》2023,123(1):255-269
Ambient air quality standards are the core strategic goal of ambient air quality management. Countries worldwide have given importance to research on the development of ambient air quality standards. To understand the history of the development of China's ambient air quality standards, this study analyzed the background associated with all previous formulations and revisions of the standards, classification of functional areas, standard grading, pollutants, and evolution of the standard limits over the past 40 years. The results show that since the initial release of the “Ambient Air Quality Standard” by China in 1982, it has been supplemented once, revised twice, and modified twice. The first ambient air quality standard specified the standard limits of six pollutants commonly found in ambient air. With the development of ambient air quality management, the number of pollutants has increased to ten. Since the release of the “Ambient Air Quality Standards” in 2012, the ambient air quality in China has significantly improved. However, the proportion of cities meeting these standards is still low. At present, China is suitably positioned to make the standards associated with 24 hr SO2 concentrations more stringent such that it meets the values defined in the World Health Organization (WHO) interim target-2 and the WHO air quality guideline (AQG). We further suggested that the SO2 standard should be revised promptly. Simultaneously, regions with a relatively high proportion of cities meeting the standard are encouraged to introduce more stringent interim target limits in due course to manage the local ambient air quality. 相似文献
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生态系统服务价值评估多集中于森林和湿地生态系统,随着稻田生态系统的多功能性得到认同,其价值评估成为新热点,但目前还未形成统一的价值评估方法体系。文章在已有的国内外研究的基础上,将稻田生态系统服务功能划分为供给、调节、支持及文化服务4大类功能,并细化为11项指标进行评估,其中社会保障和处理生活废弃物的价值不能忽略。同时,文章将少有学者研究的负面效益纳入稻田生态系统评估方法体系中,包括对农用化学品污染、水资源消耗、温室气体排放及围湖造田4方面带来的负面经济价值分别进行评估,旨在提出最新且全面的稻田生态系统多功能性价值评估方法体系,解决估值结果相差甚远、科学性欠佳的现状,并提高公众对稻田生态系统多功能性价值的认识。 相似文献