Construction and optimization of watershed-scale ecological network based on complex network method: A case study of Erhai Lake Basin in China

Wang, Tengwen; Huang, Yuchen; Cheng, Junhao; Xiong, Hang; Ying, Yue; Feng, Yu; Wang, Jinman

doi:10.1016/j.ecolind.2024.111794

Ecological Indicators

2024

DOI: 10.1016/j.ecolind.2024.111794

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Construction and optimization of watershed-scale ecological network based on complex network method: A case study of Erhai Lake Basin in China

Tengwen Wang,

Yuchen Huang,

Junhao Cheng

et al.

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2024

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Cited by 5 publications

References 27 publications

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Research on ecological network identification in rare animal habitats based on the MaxEnt model and ant colony algorithm: a case study of Giant Panda National Park, China

Qiu,

He,

Zheng

2024

Biodivers Conserv

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Research on ecological network identification in rare animal habitats based on the MaxEnt model and ant colony algorithm: a case study of Giant Panda National Park, China

Qiu,

He,

Zheng

2024

Biodivers Conserv

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Ecological Network Construction Based on Red, Green and Blue Space: A Case Study of Dali City, China

Chen,

Zhang,

Huang

et al. 2024

IJGI

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Rapid urbanization leads to fragmentation and reduced connectivity of urban landscapes, endangering regional biodiversity conservation and sustainable development. Constructing a red, green, and blue spatial ecological network is an effective way to alleviate ecological pressure and promote economic development. Using circuit theory, hydrological analysis, and suitability analysis, this study constructs a composite ecological network under urban–rural integration. The results show the following: (1) A total of 22 ecological corridors with a length of 349.20 km, 22 ecological pinch points, and 22 ecological barrier points are identified in the municipal area, mainly distributed in Haidong Town. There are 504 stormwater corridors, which are more evenly distributed, 502 riverfront landscape corridors, and 130 slow-moving landscape corridors. (2) A total of 20 ecological corridors, with a length of 99.23 km, 19 ecological pinch points, and 25 barrier points were identified in the main urban area, and most of them are located in the ecological corridors. There are 71 stormwater corridors, mainly located in the northwestern forest area, 71 riverfront recreation corridors, and 50 slow-moving recreation corridors. (3) Two scales of superimposed ecological source area of 3.65 km2, and eleven ecological corridors, are primarily distributed between Erhai Lake and Xiaguan Town. There are two superimposed stormwater corridors and fourteen recreational corridors. The eco-nodes are mostly distributed in the east and south of Dali City; wetland nodes are mainly situated in the eighteen streams of Cangshan Mountain; and landscape nodes are more balanced in spatial distribution. The study results can provide a reference for composite ecological network construction.

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Spatial Structure and Vulnerability of Container Shipping Networks: A Case Study in the Beibu Gulf Sea Area

Xia,

Chen,

Zhang

et al. 2024

JMSE

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Ports play an important role in maintaining the effectiveness of maritime logistics. When ports encounter congestion, strikes, or natural disasters, the maritime container transportation network might be significantly affected. The Beibu Gulf sea area is a key channel to supporting China’s participation in international economic cooperation in the western region. It is highly susceptible to the influence of the political and economic instability. This study introduces a dual-component framework to analyze the inherent structure and potential vulnerabilities of the container transportation network in the Beibu Gulf Sea areas. The findings show that the core layer of the network exhibited circular solidification characteristics. The entire network heavily relies on some core ports, such as Haiphong Port, Ho Chi Minh Port, and Qinzhou Port, and it highlights the potential increases in vulnerability. The finding shows that deliberate attacks have a greater impact than random attacks on the normal operations of maritime networks. If ports with high intermediary centrality are attacked, the connectivity and transportation efficiency of the Beibu Gulf maritime network will be significantly affected. However, under such circumstances, redistributing cargo transportation through route adjustments can deal with the transmission of cascading failures and maintain the network’s resilience. Based on the existing knowledge and the data collected in a case study, this research stands out as the first to provide a critical examination of the spatial structure and vulnerability of container shipping networks in the Beibu Gulf sea.

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Construction and optimization of watershed-scale ecological network based on complex network method: A case study of Erhai Lake Basin in China

Cited by 5 publications

References 27 publications

Research on ecological network identification in rare animal habitats based on the MaxEnt model and ant colony algorithm: a case study of Giant Panda National Park, China

Research on ecological network identification in rare animal habitats based on the MaxEnt model and ant colony algorithm: a case study of Giant Panda National Park, China

Ecological Network Construction Based on Red, Green and Blue Space: A Case Study of Dali City, China

Spatial Structure and Vulnerability of Container Shipping Networks: A Case Study in the Beibu Gulf Sea Area

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