• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Policy >Accessing on the sustainability of urban ecological-economic systems by means of a coupled emergy and system dynamics model: A case study of Beijing
【24h】

Accessing on the sustainability of urban ecological-economic systems by means of a coupled emergy and system dynamics model: A case study of Beijing

机译：能源和系统动力学耦合模型探讨城市生态经济系统的可持续性：以北京为例

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Due to high population densities and rapid economic development, great number of cities worldwide rely heavily on external resources, and many are experiencing serious environmental pollution. Municipal governments are facing the issue of balancing the relationship between economic growth and environmental preservation. An urban system is an open, complex, dynamic ecological-economic system with different types of materials and resources. This paper combines emergy theory and System Dynamics (SD) and establishes an emergy-flow SD model of an urban eco-economic system that includes economic, population, waste and emergy sub-models. Three scenarios with different economic growth rates and investments in environmental preservation are designed to analyze the sustainable development capacity of Beijing under different scenarios. The results of the analysis show that current economic development in Beijing highly depends on resources consumption, especially the consumption of imported resources. Based on the current growth rate, development in Beijing will heavily depend on external resources that may make the system being more fragile in the future. A lower economic growth rate and a small increase in environmental preservation investment are more suitable for in Beijing than area higher economic growth rate and a large increase in environmental preservation investment. (C) 2016 Elsevier Ltd. All rights reserved.
机译：由于高人口密度和快速的经济发展，全球许多城市严重依赖外部资源，许多城市正遭受严重的环境污染。市政府面临着平衡经济增长与环境保护之间关系的问题。城市系统是一个开放的，复杂的，动态的生态经济系统，具有不同类型的物质和资源。本文结合能值理论和系统动力学（SD），建立了一个城市生态经济系统的能流SD模型，该模型包括经济，人口，废物和能值子模型。设计了三种不同的经济增长率和环境保护投资方案，以分析北京在不同方案下的可持续发展能力。分析结果表明，北京当前的经济发展高度依赖于资源消耗，特别是进口资源的消耗。根据目前的增长率，北京的发展将在很大程度上取决于外部资源，这可能会使系统在未来变得更加脆弱。经济增长率较低和环境保护投资大幅增加的地区，较低的经济增长率和环境保护投资的少量增加更适合于北京。 （C）2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Energy Policy》 |2017年第1期|326-337|共12页
  • 作者

    Fang Wei; An Haizhong; Li Huajiao; Gao Xiangyun; Sun Xiaoqi; Zhong Weiqiong;

  • 作者单位

    China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China|Minist Land & Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100083, Peoples R China|Minist Land & Resources, Open Lab Talents Evaluat, Beijing 100083, Peoples R China;

    China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China|Minist Land & Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100083, Peoples R China|Minist Land & Resources, Open Lab Talents Evaluat, Beijing 100083, Peoples R China;

    China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China|Minist Land & Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100083, Peoples R China|Minist Land & Resources, Open Lab Talents Evaluat, Beijing 100083, Peoples R China;

    China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China|Minist Land & Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100083, Peoples R China|Minist Land & Resources, Open Lab Talents Evaluat, Beijing 100083, Peoples R China;

    China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China|Minist Land & Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100083, Peoples R China|Minist Land & Resources, Open Lab Talents Evaluat, Beijing 100083, Peoples R China;

    China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China|Minist Land & Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100083, Peoples R China|Minist Land & Resources, Open Lab Talents Evaluat, Beijing 100083, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Emergy flows; Urban ecological-economic systems; System dynamics; Environmental preservation;

    机译：能值流;城市生态经济系统;系统动力学;环境保护;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号