Ecological network analysis of urban energy metabolic system—A case study of Beijing

Zhu, Xueting; Mu, Xianzhong; Hu, Guangwen

doi:10.1016/j.ecolmodel.2019.04.016

Cited by 33 publications

(15 citation statements)

References 43 publications

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“…Patten et al (1976) published the first study applying the ENA method. The method gradually matured and developed into a complete system of methods, including flow analysis, structure analysis, utility analysis, and function analysis, which are widely used by scholars to study the urban nitrogen metabolic system (Zhang et al, 2016a), water metabolic system (Zhang et al, 2019), energy metabolic system (Zhu et al, 2019), and carbon metabolic system (Zhang et al, 2016b).…”

Section: Ecological Network Analysis Methodsmentioning

confidence: 99%

Ecological network analysis of the carbon metabolism system in mountainous cities based on land-carbon nexus: A case study in the main urban area of Chongqing, China

Xiang

Wang

Deng

et al. 2022

Preprint

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Land use/cover change (LUCC) under rapid urbanization has led to a sharp increase in urban carbon emissions, an imbalance in carbon budgets, and climate warming. Therefore, the development of urban carbon metabolism research has become key to mitigating global warming and achieving China’s “Dual Carbon” targets. Taking the main urban area of Chongqing, a typical mountainous city in China, as an example, this study accounted for the carbon release and carbon absorption in the main urban area of Chongqing, constructed an urban carbon flow model based on the land-carbon nexus, and finally evaluated the urban carbon metabolic system from 2000 to 2020 by using the ecological network analysis method. The results show that: 1) During the study period, the carbon release of the main urban area of Chongqing was 31.43 times, 31.53 times, 49.43 times, 51.99 times, and 51.58 times that of the carbon absorption in 2000, 2005, 2010, 2015, and 2020, respectively. The main urban area of Chongqing is dominated by a “carbon source” effect, and the carbon budget imbalance has increased. 2) The net carbon flow in the main urban area of Chongqing has been negative in the past 20 years, showing a fluctuating downward trend. The negative carbon flow mainly comes from the conversion of cultivated land to construction land, and the positive carbon flow mainly comes from the conversion of construction land to cultivated land and woodland. 3) From the flow analysis, it can be seen that the H-index of the main urban area of Chongqing was 0.287, 0.189, 0.094, and 0.330, in respective chronologically ordered 5-year intervals, during the 20-year study period, showing a “V-shaped” change trend. From the perspective of structure analysis, it is clear that the carbon flow contribution level of each component is ranked as follows: cultivated land ＞construction land ＞ woodland ＞ water ＞ grassland ＞unused land. The utility analysis shows that the K-index of the main urban area of Chongqing was1.40, 0.80, 0.57, and 1.40, in respective 5-year intervals, during the study period, showing a “U-shaped” change trend. From the function relationship analysis, it can be seen that the ecological relationship of carbon metabolism in the main urban area of Chongqing is dominated by exploitation and control relationships, which mainly exist in the ecological relationship between construction land and cultivated land, and the spatial distribution is concentrated in the central and western areas of the main urban area of Chongqing. Our research results can provide a reference for Chongqing’s green and low-carbon sustainable development as a means toward the realization of the “Dual Carbon” targets, and provide a reference for other similar mountainous cities in western China.

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Section: Ecological Network Analysis Methodsmentioning

confidence: 99%

Ecological network analysis of the carbon metabolism system in mountainous cities based on land-carbon nexus: A case study in the main urban area of Chongqing, China

Xiang

Wang

Deng

et al. 2022

Preprint

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“…Realizing that the energy subsystem is the key connection between the economy subsystem and the environment subsystem that has high impacts on the overall development of the 3E system. Some in-depth studies on the energy subsystem independently are carried out to find out the mechanism behind it (Hu & Mu, 2018;Zhu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Correlation and synergy analysis of urban economy–energy–environment system—A case study of Beijing

Kong

et al. 2021

Natural Resource Modeling

Self Cite

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The coordination of economy, energy, and environment plays an important role for cities seeking green transformation and sustainable development. However, poor information and equivocal data are what often face the related analysis. In this paper, the correlation and synergy of the urban economy-energy-environment system are analyzed. First, the Grey relational analysis and entropy weight method are combined and introduced to analyze the correlation degree in the indicator level and the subsystem level of the 3E system. Then, the concepts of ordinal parameter and comprehensive correlation degree are introduced, to evaluate the ordering degree of subsystems and the synergy degree of compound systems. Finally, the data of Beijing from 2008 to 2017 are used for empirical study. Results suggest that a fluctuating tendency of low synergy or none synergy is observed in the Beijing 3E system. Furthermore, the improvement of the energy subsystem displays dominant effects on the coordinated development of compound systems, and the technological innovation andThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…Such case studies facilitate urban development policy from a comparative perspective, however they do not capture the full spectrum of science-based research that is relevant to a given context. On the other hand, scholars have used bibliometric and network analysis techniques in the area of urban studies to look at a range of issues including areas of expertise and interests of faculty in the field of urban planning, urban sustainability concepts and urbanization research, urban energy systems, green infrastructure, urban climate change, urban food policy, and development participation [11][12][13][14][15][16][17]. Such studies bring to light how various concepts transform as well as branch off over time, with the core issues addressed by each branch of the conceptual path evolving into distinct topics [5].…”

Section: Introductionmentioning

confidence: 99%

Smart, Sustainable and Citizen Centered: A Network Analysis of Urban R&D Trends in Seoul, South Korea

et al. 2020

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Although it is now recognized that place matters for urban development policy, most case studies focusing on particular cities tend to adopt a high-level perspective that imperfectly captures the full spectrum of context-relevant urban development issues. This study applies semantic network analysis to a corpus of 13,852 accepted R&D project proposals on issues related to the urban development of Seoul, South Korea. Through our analysis, we highlight important research trends and also make connections between these trends and the policy orientation and priorities of successive mayoral administrations over a period of 16 years. Although the results suggest that there is significant overlap between policy orientation and scientific research activity, the interests of research scientists cannot be reduced entirely to political priorities. The study contributes to the literature by fusing the place-based approach to urban development studies with the computational content analysis methodology. We raise several questions for future research, including questions about the relationship between policy priorities, scientific research, and academic research.

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Ecological network analysis of urban energy metabolic system—A case study of Beijing

Cited by 33 publications

References 43 publications

Ecological network analysis of the carbon metabolism system in mountainous cities based on land-carbon nexus: A case study in the main urban area of Chongqing, China

Ecological network analysis of the carbon metabolism system in mountainous cities based on land-carbon nexus: A case study in the main urban area of Chongqing, China

Correlation and synergy analysis of urban economy–energy–environment system—A case study of Beijing

Smart, Sustainable and Citizen Centered: A Network Analysis of Urban R&D Trends in Seoul, South Korea

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