东南大学学报（英文版）2021，Vol.37Issue(1)：75-83,9.DOI:10.3969/j.issn.1003-7985.2021.01.010
基于能值和GIS方法的人工系统与自然系统城市生态可持续性评价
Urban ecological sustainability assessment of the human-made system and natural system based on emergy and GIS approach
摘要
Abstract
Due to the complexity of sustainable urban research,the environmental sustainability was assessed.Taking the sponge city as an example,the case study was conducted based on the integrated geographic information system(GIS)and emergy methods.The results demonstrate that the emergy of agricultural crops,major industrial products,comprehensive energy products,imports and exports,waste products and increased natural system emergy are the decisive factors for the sustainability assessment.Agricultural crops are the primary contributor,which accounts for 48.9％of the total emergy amount.Urban solid waste has a self-evident superiority in the waste products'emergy proportion.Surface water and vegetal biomass emergy possess the pivotal consequences,far higher than soil organic matter.The sewage treatment stations(0.11％)play a small role in the sustainability assessment of the sponge city.The emergy sustainability index is 0.021 81,which indicates poor environmental sustainability.According to the study results,increasing renewable energy input proportion and adopting the vegetal biomass of high unit emergy values(UEVs)can improve the sustainability level.关键词
海绵城市/能值分析/GIS/生态指标/可持续性评估Key words
sponge city/emergy analysis/geographic information system(GIS)/ecological indicators/sustainability evaluation分类
建筑与水利引用本文复制引用
张军学,李山..基于能值和GIS方法的人工系统与自然系统城市生态可持续性评价[J].东南大学学报（英文版）,2021,37(1):75-83,9.基金项目
The Postgraduate Research and Practice Innovation Program of Jiangsu Province(No.KYCX18_0104). （No.KYCX18_0104）
