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131.
The circular economy (CE) concept was introduced in China to address environmental degradation and resource scarcity associated with rapid economic development. Chosen as a demonstration city, Dalian has implemented the CE strategy as a means of conserving water, materials, energy and land. This paper outlines some of the regional CE initiatives that have been successful to date in Dalian, including those focusing on conserving energy and water resources and others focusing on reduced industrial emissions. The paper details the approach used in implementing the CE concept in Dalian, tracing the foci and goals of the program, and the sectoral approach used to implement a CE. Although Dalian municipality has achieved many successes in implementing a CE, our paper identifies several challenges that, until recently, have held back complete implementation. These include: the lack of incentives for older industries to 'green' their operations, the lack of financial support to expand the CE concept, and a broad-based need for heightened public awareness and participation in CE initiatives. Our paper then identifies several responses by Dalian municipality to overcome these challenges, including pricing and tax reforms that serve as conservation incentives, the provision of financial support for CE promotion through budget reorganization, and the organization of CE training programs. Our paper concludes that, although CE initiatives have been successful in Dalian, more is possible and more is needed before Dalian can be designated a true 'eco-city'. The approach used by Dalian can provide guidance for other Chinese cities, although it is recognized that each city must tailor its own approach for differing contexts and conditions. 相似文献
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133.
调查分析了胜利采油厂特种作业人员培训持证工作现状,查找了管理中存在的问题,结合实际提出加强特种作业人员安全管理的建议。 相似文献
134.
Toward Integrated Environmental Management for Challenges in Water Environmental Protection of Lake Taihu Basin in China 总被引:5,自引:3,他引:2
Lake Taihu is the third largest freshwater lake in China. It serves many social, economic, and ecological purposes in the
drainage basin. Unfortunately, the water has been heavily polluted due to rapid industrialization and urbanization during
the last two decades. Notwithstanding great efforts made so far to improve the water quality, the environmental situation
is still far from being optimistic. The basin and the lake are facing a range of severe environmental challenges: rapid socio-economic
development continues to place great pressures on the environment, current pollution control projects have many problems from
the viewpoint of effectiveness and efficiency of their implementations, and the non-point sources of pollution such as agricultural
fields, for which control is more difficult than for industrial point sources, have become the main contributors to serious
eutrophication of the lake. Considering the characteristics of the environmental challenges and problems confronting the basin
and the lake, we focus on integrated environmental management (IEM) as a promising and effective approach to overcome these
predicaments. Current practices and problems of environmental management in the basin are examined, and potential future developments
are discussed. Three aspects of the IEM are emphasized: institutional cooperation, public participation, and internalization
of environmental externalities. We think these are the most critical for not only the basin but also for the whole of China
to achieve a sustainable society. 相似文献
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136.
Environmental and Ecological Statistics - The results show that a comprehensive evaluation system consisting of natural resources, pollution response, government management, and legal involvement... 相似文献
137.
Phosphorus (P) is a key biological element and limiting nutrient in aquatic environments. Phosphate (+5) is traditionally associated with the P nutrient supply. However, phosphite (+3) has recently generated a great deal of interest, because of the possibility that it is a P source based on recognition of its vital role in the original life of the early earth. This study investigated whether phosphite can be an alternative P source for Microcystis aeruginosa PCC 7806, one of the predominant bloom species in freshwater systems. The results indicated that M. aeruginosa could not utilize phosphite as a sole P-nutrient directly for cell growth at any concentration, but that phosphite could boost cell numbers and chlorophyll a (Chl-a) content as long as phosphate was provided simultaneously. Specifically, Chl-a production increased sharply when 5.44 mg P L−1 phosphite was added to 0.54 mg P L−1 phosphate medium. Analysis of the maximum yield of PSII indicated that phosphite may stimulate the photosynthesis process of cells in phosphate-phosphite medium. In addition, phosphite failed to support cell growth, even though it more readily permeated the cells in P-deficient medium than in P-sufficient medium. Alkaline phosphatase activity (APA) analysis indicated that, unlike organic P, phosphite inhibits the response of cells to deficient P status, especially under P-deprived conditions. 相似文献
138.
国土空间规划监测评估预警是监督规划实施管理、保障规划实施成效的重要手段,也是实现“可感知、能学习、善治理、自适应”智慧规划转型的关键支撑。针对当前国土空间规划监测评估预警研究重机制、轻理论,以及缺乏一套科学可用的监测评估预警技术方法支撑的不足,在系统分析国土空间规划监测评估预警目标与内涵的基础上,构建以人工智能(Artificial Intelligence)、大数据(Big Data)、云计算(Cloud Computing)等新型信息技术(“ABC”技术)为支撑,覆盖国土空间规划“监测—评估—预警”业务全生命周期的应用模型体系,并结合信息系统建设案例,介绍了基于“ABC”技术的国土空间规划监测评估预警模型体系对实现各地国土空间规划“动态监测、精准评估、及时预警”的重要支撑作用。 相似文献
139.
日益严重的电子垃圾污染已直接或间接地危害到人类的健康,因此,电子垃圾的有效管理变得越来越重要。文章简要分析了目前世界总体电子垃圾的产生特点以及中国电子垃圾的污染现状,通过分析中国对于电子垃圾污染和管理采取的一系列政策和措施的有效性,重点对比研究了现阶段中国与几个发达国家电子垃圾的管理回收手段及政策,试图寻找中国电子垃圾管理的有效措施。最后,综合各国管理经验提出了电子垃圾的管理方案,从而为中国的电子垃圾管理提供借鉴与建议。 相似文献
140.
Sun Zhifang Gao Rufei Chen Xuemei Liu Xueqing Ding Yubin Geng Yanqing Mu Xinyi Liu Taihang Li Fangfang Wang Yingxiong He Junlin 《Environmental science and pollution research international》2021,28(31):42024-42036
Environmental Science and Pollution Research - Butylated hydroxytoluene (BHT), one of the most widely used synthetic phenolic antioxidants, is a popular food additive. Previous studies have... 相似文献