|Table of Contents|

[1] Zhang Junxue, Li Shan,. Urban ecological sustainability assessment of the human-madesystem and natural system based on emergy and GIS approach [J]. Journal of Southeast University (English Edition), 2021, 37 (1): 75-83. [doi:10.3969/j.issn.1003-7985.2021.01.010]
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Urban ecological sustainability assessment of the human-madesystem and natural system based on emergy and GIS approach()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
37
Issue:
2021 1
Page:
75-83
Research Field:
Energy and Power Engineering
Publishing date:
2021-03-20

Info

Title:
Urban ecological sustainability assessment of the human-madesystem and natural system based on emergy and GIS approach
Author(s):
Zhang Junxue1;  Li Shan2
1 School of Architecture, Southeast University, Nanjing 210096, China
2Urban Design Institute of Zhong Fang, Shanghai 201100, China
Keywords:
sponge city;  emergy analysis;  geographic information system(GIS);  ecological indicators;  sustainability evaluation
PACS:
TU856
DOI:
10.3969/j.issn.1003-7985.2021.01.010
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.

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Memo

Memo:
Biographies: Zhang Junxue(1984—), male, Ph.D. candidate, engineer, zhangjunxue2017@foxmail.com.
Foundation item: The Postgraduate Research and Practice Innovation Program of Jiangsu Province(No.KYCX18_0104).
Citation: Zhang Junxue, Li Shan.Urban ecological sustainability assessment of the human-made system and natural system based on emergy and GIS approach[J].Journal of Southeast University(English Edition), 2021, 37(1):75-83.DOI:10.3969/j.issn.1003-7985.2021.01.010.
Last Update: 2021-03-20