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Emergy Synthesis and Regional Sustainability Assessment: Case Study of Pan-Pearl River Delta in China

机译：卓越的综合和区域可持续发展评估：中国泛珠三角案例研究

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摘要

In this paper, emergy analysis is used in association with the ternary diagrams and geographic information system (GIS) tools to improve the evaluation of sustainability for the Pan-Pearl River Delta (PPRD) region. Emergy accounting of PPRD is estimated, and various emergy-based indicators are reported. Ternary diagrams are drawn to provide a graphical representation of the emergy accounting data. Finally, the GIS tools are employed to assist in the emergy-based spatial analysis, and emergy density based on flat land area is mapped to reflect the intensity of emergy use in human activity areas. Results show the following: (1) the current development path of the PPRD region, with the value of emergy sustainability index (ESI = 0.227) significantly lower than one, is unsustainable in the long run; (2) Guangdong has the lowest ESI value (0.071), and the ESI values of Fujian, Guangxi, Hunan and Jiangxi are lower than 0.5, indicating that the economy in these provinces overly relies on non-renewable and imported resources; (3) Guizhou has a high emergy yield rate and is thus the main energy supplier in PPRD; and (4) among the nine provinces in PPRD, only Hainan has an ESI value (2.145) higher than one.
机译：在本文中，可以与三元图和地理信息系统（GIS）工具相关联，以改善泛珠江三角洲（PPRD）地区可持续性评估。估计PPRD的可观核算，并报告了各种基于绩效的指标。绘制三元图以提供emergy会计数据的图形表示。最后，采用GIS工具来协助基于唯一的空间分析，基于平面陆地面积的可闻密度映射以反映人类活动区域的可闻到的强度。结果表明以下：（1）PPRD区域的当前发展路径，具有可持续可持续性指数（ESI = 0.227）的值明显低于1，在长远来看是不可持续的; （2）广东拥有最低的ESI值（0.071），福建，广西，湖南和江西的ESI值低于0.5，表明这些省份的经济过度依赖于不可再生和进口的资源; （3）贵州具有高的屈服率，因此是PPRD中的主要能源供应商; （4）在PPRD的九个省份中，只有海南的ESI价值（2.145）高于1。

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