scholarly journals Ecological Network Analysis for a Low-Carbon and High-Tech Industrial Park

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Yi Lu ◽  
Meirong Su ◽  
Gengyuan Liu ◽  
Bin Chen ◽  
Shiyi Zhou ◽  
...  
Keyword(s):  
Network Analysis ◽  
Carbon Metabolism ◽  
Sustainable Construction ◽  
High Tech ◽  
Industrial Park ◽  
Control Analysis ◽  
Low Carbon ◽  
Ecological Network ◽  
Ecological Network Analysis ◽  
Ecological Structure

Industrial sector is one of the indispensable contributors in global warming. Even if the occurrence of ecoindustrial parks (EIPs) seems to be a good improvement in saving ecological crises, there is still a lack of definitional clarity and in-depth researches on low-carbon industrial parks. In order to reveal the processes of carbon metabolism in a low-carbon high-tech industrial park, we selected Beijing Development Area (BDA) International Business Park in Beijing, China as case study, establishing a seven-compartment- model low-carbon metabolic network based on the methodology of Ecological Network Analysis (ENA). Integrating the Network Utility Analysis (NUA), Network Control Analysis (NCA), and system-wide indicators, we compartmentalized system sectors into ecological structure and analyzed dependence and control degree based on carbon metabolism. The results suggest that indirect flows reveal more mutuality and exploitation relation between system compartments and they are prone to positive sides for the stability of the whole system. The ecological structure develops well as an approximate pyramidal structure, and the carbon metabolism of BDA proves self-mutualistic and sustainable. Construction and waste management were found to be two active sectors impacting carbon metabolism, which was mainly regulated by internal and external environment.

scholarly journals Ecological Network Analysis of a Virtual Water System in Tibet, China

Water ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3246
Author(s):  
Junhong Chen ◽  
Yadong Mei
Keyword(s):  
Network Analysis ◽  
Water System ◽  
Virtual Water ◽  
Network Control ◽  
Control Analysis ◽  
Ecological Network ◽  
Network Efficiency ◽  
Ecological Network Analysis ◽  
Water Flows ◽  
Trade Offs

With the development of the economy and urbanization, the contradiction between water use and supply is growing, and it is necessary to explore the relationship and evolutionary process of water flow in the water system from a systematic perspective. Although previous studies have analyzed the water system from a holistic point of view, a comprehensive system that considers virtual water flows is currently lacking. The present study establishes a seven-compartment virtual water system in Tibet in 2012 by combining ecological network analysis (ENA) with the input–output model. Socio-economic sectors and virtual water flows are expressed as network compartments and pathways. The information-based ENA is used to evaluate the characteristics of the virtual water system in Tibet, including its robustness and trade-offs between network efficiency and redundancy. Network control analysis is introduced to characterize the control and dependence intensities over the system, while ecological relationships between pairwise compartments are calculated using network utility analysis. The results indicate that Tibet’s virtual water system has close to optimal robustness, with higher redundancy and limited efficiency. The agriculture compartment is the main controller, while the energy supply compartment is the most dependent on the virtual water system. The overall systematic relationship that the system has is generally mutualistic and synergistic, the majority of which have a positive relationship, although the control and exploitation relationships are dominant. These results can be used to improve network robustness and are of great significance to the sustainable development of the virtual water system in Tibet.

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