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341.
本文首次以上海市“十四五”规划的视角,使用系统动力学方法研究上海市的绿色发展因素。首先确定了由经济、社会、环境、资源四个子系统交叉融合而构成上海市绿色发展系统,再基于系统动力学原理和上海市2012—2019年的数据构建上海市绿色发展模型,响应“十四五”规划在绿色发展方面设立的目标,构建多个未来发展情景并进行指标参数调控,依据各个情景的仿真结果,分析并总结了“十四五”规划背景下上海市的绿色发展特点。研究结果表明,影响绿色发展的关键因素由主到次依次为生态环境建设支出、研发支出、产业结构调整。相比于产业的投资结构调整,上海市对从业人员结构的调整可以高效平衡经济与环境的发展;加快科技创新可以在很大程度上抑制碳排放,从而快速实现上海市的“双碳”目标;针对化学污染物的治理,污染源防治不但十分有效,而且有利于持续性发展,这些措施应是上海市政府的首选。 相似文献
342.
介绍了瑞典的水环境保护法规政策、水环境保护机构、污水处理体系及其在水环境保护方面的特色做法。结合目前我国水环境管理所处的阶段,从顶层设计、宣传教育、项目管理、污染防治等方面,总结了瑞典经验对我国水环境保护工作的启示。 相似文献
343.
Maximilian Zarte Agnes Pechmann Isabel L. Nunes 《International Journal of Sustainable Engineering》2019,12(3):149-158
Production facilities serve to transform raw materials into products, usually with the goal of achieving a designated output, in terms of quantity and quality, with the minimum of cost and labour. With the aid of production planning and controlling (PPC) systems, raw material inputs, and labour can be planned to achieve a determined output of products. In general, the role of environmental and social aspects is neglected in production planning processes. Because of the growing pressure from politics and customers, sustainable production of products is becoming more important. One possibility for supporting sustainable manufacturing is, to integrate sustainable aspects in the production planning process. This paper presents input and output information for current PPC systems and discusses the need for additional information necessary for sustainable PPC. For this approach, a text review of cooperate social responsibility (CSR) reporting indicators provided by the GRI was performed. Based on the text review, an input-output model has been developed for conventional and another one for sustainable PPC systems. Through the comparison of the two input-output models, challenges and requirements for sustainable PPC systems have been defined as a basis for future work and analyses. 相似文献
344.
加拿大推动可持续发展战略的策略及实践 总被引:2,自引:0,他引:2
文章介绍了加拿大的简况,讨论了加拿大可持续发展的历程以及促使各政府部门将可持续发展战略落实到工作中的环境审计制度。探讨了加拿大可持续发展战略实施方面的部分经验,如向国会提交年度环境与可持续发展审计报告、工业可持续发展战略的制定及加拿大-中国的可持续发展合作等。 相似文献
345.
区域开发的不确定性等给区域开发的环境影响评价(REIA)提出了较高的要求。循环经济按照自然生态学的原理,形成"资源-产品-消费-再生资源"的物质闭循环的流动过程。融入循环经济理念,将弥补传统区域开发环境影响评价模式的不足,更好发挥其在项目审批及环境管理中的作用。 相似文献
346.
347.
Huangpu River is about 114.5 km from upriver Dianfeng to downriver Wusong,near the estuary of the Yangtze River.It plays a key role in supplying water for production,life,shipment and irrigation.With the industrial development,the pollution of the Huangpu River has become serious recently.The biological oxygen demand (BOD),total nitrogen (TN),total phosphorus (TP),oil,phenol and suspended solids (SS) were lower in the upstream sites than in the downstream sites,indicating pollutants being input along its course. Water quality was the worst in the Yangpu site,near the center of Shanghai City.Dissolved oxygen (DO) content was less than 2 mg/L in the site of Yangpu in July.Among relations between thirteen characteristics,relations between BOD,DO,TN,TP,NH_4~ -N, NO_3~--N and the count of total bacteria or Escherichia coli were significant and interdependent.Inner relationships between these main characteristics in the Huangpu River were studied.High nutrient concentration led to growth of microorganisms,including E.coli. Degradation of organic matters and respiration of bacteria made oxygen concentration decreased in the water body,and DO was a key factor for nitrification-denitrification process of nitrogen.In the Yangpu site,DO was decreased to less than 3.0 mg/L with BOD higher than 7.5 mg/L in May and July.Low DO concentration will decrease nitrification rate.Nitrification need at higher DO value than other organic substrate oxidation.Consequently,river water contains low NO_3~--N values with high amounts of TN and NH_4~ -N there.This will block the self-purification of surface water,by decreasing the rate of nitrification-denitrification transformation process in the water body. 相似文献
348.
我国矿业城市的产业结构调整及其发展途径 总被引:14,自引:0,他引:14
许光洪 《中国人口.资源与环境》1998,8(1):26-30
由于受资源递减规律影响,矿业城市的发展必将受到其不合理产业结构的限制。产业结构调整是矿业城市得以持续发展的必由之路,基于其资源与区位优势发展替代性产业是矿业城市产业结构调整的最佳选择。本文探讨了矿业城市产业结构调整的一些原则,提出了一些对策和建议。 相似文献
349.
This paper introduces an integrated water management model at the industrial park level. It suggests four approaches to water
management: first, direct water reuse among users; second, water reuse among users by blending with freshwater; third, water
reuse between users and a wastewater treatment plant; and fourth, groundwater recharge by reclaimed wastewater or other feasible
applications in order to optimize the overall water efficiency. The model results in a comprehensive management methodology
for optimizing water resources within an industrial park, seeking potential water reuse among industries, and incorporating
the size and cost of reclaimed wastewater delivery systems. A case study is employed to test the model’s feasibility. An economic
analysis of the optimized water use network is also carried out, showing the potential water and cost savings. 相似文献
350.
China is now facing huge pressure from both the domestic concern of energy security and the global community's call for emission reduction commitment. As one of the major energy consumers and greenhouse gas emitters, China's iron and steel industry has a huge clean development mechanism (CDM) potential. This article both quantitatively and qualitatively analyzes the current status of CDM project activities in the iron and steel industry in China, including characteristics of approved project types, applicable methodologies, and potential technology fields. From the perspective of project implementation, the article summarizes development barriers such as high investment risk, difficulty in project identification, strict requirements on PPDs, long registration waiting time, and etc. Policy suggestions are also put forwarded to help better promote the development of CDM projects in the iron and steel industry. 相似文献