Ecological network construction and optimization in Guangzhou from the perspective of biodiversity conservation

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 336, P. 117692 - 117692

Published: March 13, 2023

Language: Английский

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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

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111794 - 111794

Published: March 1, 2024

The ecological network construction and optimization are of great significance in ensuring regional security optimizing the space national territory, therefore constructing spatial proposing countermeasures conducive to enhancing stability. However, current research on networks ignores ecospatial community structure topology characteristics networks, lacks a systematic framework. scope primarily concentrates urban administrative units, with less emphasis geographic scale watersheds. This approach is not comprehensive management all elements ecosystems. Therefore, this took Erhai Lake Basin as an object, adopted Morphological Spatial Pattern Analysis (MSPA) landscape connectivity extract sources, simulate corridors identify weak points through model Minimum Cumulative Resistance (MCR) gravity model, constructed Basin, topologized by using Gephi platform. Based results analysis complex indicators, strategy increasing edges was proposed. Priority conservation areas were further identified, pattern designed, restoration planned. Results show that 28 378 potential corridors, 48 important 86 formed Basin. had clear clustering instability, high degree concentration northeast uneven betweenness centrality, especially higher east. Through analysis, 12 increased edge nodes 9 simulated, 26 added, significantly improving robustness. pattern, strict control around lake, barrier belts priority designed. study implemented based enhance stability network, which provides theoretical basis for useful exploration ecologically fragile watersheds protect environment achieve high-quality sustainable development.

Language: Английский

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Ecological network construction for bird communities in high-density urban areas: A perspective of integrated approaches

Ecological Indicators, Journal Year: 2024, Volume and Issue: 158, P. 111592 - 111592

Published: Jan. 1, 2024

With the rapid pace of global urbanization, conflict between needs human economic development and ecological conservation is becoming increasingly prominent. As an important habitat along migratory routes birds in East Asia, construction network for bird communities Foshan City essential to protect urban biodiversity. In this research, we employs Maximum Entropy Model (MaxEnt) Remote Sensing Ecological Index (RSEI) identify source sites based on migration characteristics requirements, calculated minimum threshold area by using granularity inverse method. Secondly, entropy weight method (EWM) analytical hierarchy process (AHP) are combined establish a comprehensive resistance surface. Finally, circuit theory hydrological analysis principles utilized construct network. The findings reveal following: landscape component structure best at grain size 1400 m, 1.96 km2 identified sources Foshan. A total 19 sources, spanning 636.09 km2, have been identified. These mainly clustered north, south-west east City. terms corridors, research shows existence 51 corridors with length 501.84 km. include 7 first-level 25 s-level potential (including 15 radiating routes). At same time, 88 nodes, including 10 critical nodes 78 general nodes. Lastly, closure index (α), connectivity (β), rate (γ), density (ρ) after optimization grew 0.84, 2.43, 0.89, 0.16, respectively. This study can provide data support optimizing future security pattern diversity

Language: Английский

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Analysis of ecological network evolution in an ecological restoration area with the MSPA-MCR model: A case study from Ningwu County, China

Ecological Indicators, Journal Year: 2025, Volume and Issue: 170, P. 113067 - 113067

Published: Jan. 1, 2025

Language: Английский

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Identifying priority areas for ecological conservation and restoration based on circuit theory and dynamic weighted complex network: A case study of the Sichuan Basin

Ecological Indicators, Journal Year: 2023, Volume and Issue: 155, P. 111064 - 111064

Published: Oct. 12, 2023

Regional ecological security is a pressing issue in the context of escalating human-environment conflicts. Ecological networks(ENs), fundamental tool for characterizing ecosystems, have enabled further quantitative analysis at micro level by integrating with complex networks recent years. However, most studies neglect unreliability unweighted and dynamic characteristics ENs. This paper takes Sichuan Basin as research area adopts following methods. Firstly, it integrates landscape ecology ecosystem services to construct ENs using Linkage Mapper. Secondly, introduces cost-weighted distance weight build identifies potential pivot sources key corridors based on topological features weighted 2000, 2010, 2020. Thirdly, applies circuit theory detect pinchpoints barrier points within priority areas conservation restoration. The results show that study are denser northern southern sides, some change direction due variations resistance surfaces morphology. Through networks, 27 25 identified; then, 28 10 restoration these extracted theory. reveals certain correlation between distribution nodes water bodies. Furthermore, comparing network, we find network more reasonable, 64.2% showing lower betweenness centrality than reflecting obstacles urbanization poses networks. explores impact constantly changing overall their components through analysis. evolving reflect feedback external environmental changes, well real Therefore, findings this provide valuable references governance efforts Basin, promoting regional advancement civilization.

Language: Английский

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Incorporating network topology and ecosystem services into the optimization of ecological network: A case study of the Yellow River Basin

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169004 - 169004

Published: Nov. 29, 2023

Language: Английский

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Optimizing supply chain strategies for deteriorating items and imperfect manufacturing under carbon emission regulations

Computers & Industrial Engineering, Journal Year: 2023, Volume and Issue: 182, P. 109350 - 109350

Published: June 2, 2023

Language: Английский

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Construction and evaluation of ecological networks in highly urbanised regions: A case study of the Guangdong-Hong Kong-Macao greater Bay Area, China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 152, P. 110336 - 110336

Published: May 18, 2023

Metropolitan regions usually encounter sustainability difficulties such as overexploitation of resources, severe land scarcity, and ecological degradation, resulting in the progressive collapse networks (ENs). It is therefore essential to strengthen construction protection ENs by integrating various improving quality urban environment creating a favourable living environment. Using Guangdong-Hong Kong-Macao Greater Bay Area case study, this paper, resistance indicator system that balances natural condition human disturbance rebuilt. In doing so, scheme (applicable highly urbanised areas) established simulate at more precise scale. Moreover, local evaluation model proposed spatial patterns multiple indicators are fully summarised. The findings show exhibit apparent disparity. Disturbance through activities seriously affects pattern ENs, leading structural imbalance impairment corridors. Based on our assessment, complementary corridors "two green belts" planning will improve problems. paper can provide reference harmonisation development protection, guiding scientific management spaces regions.

Language: Английский

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Identification and optimization of ecological security pattern in arid inland basin based on ordered weighted average and ant colony algorithm: A case study of Shule River basin, NW China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110588 - 110588

Published: July 5, 2023

Optimization of ecological security patterns (ESP) is an important way to implement land space restoration and maintain regional sustainable development. How comprehensively identify ESP while maintaining the balanced development each ecosystem service key issue in identification construction at present. Using data on use, meteorology, vegetation biomass socio-economic statistics, quality six typical services Shule River basin (SRB) 2010 2020 were calculated for food supply, water conservation, carbon fixation oxygen release, habitat quality, soil conservation culture leisure. The ordered weighted averaging (OWA) model was introduced priority areas as source, minimum cumulative resistance (MCR) used extract corridors nodes. Based ant colony algorithm optimal paths study area, spatial scope corridors, potential recovery points, construct optimization ESP. results show that temporal differences SRB significant, showing characteristics overall dispersion small concentration. 76 source patches with a total area 2.29 × 104 km2; 54 length 3161.87 km; 36 nodes identified. Overall, shows network complete but there still room optimization, local problems are prominent. extracted 4.21 km2, 4 points. Finally, "two two belts, three areas" determined.

Language: Английский

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Ecological Security Pattern based on XGBoost-MCR model: A case study of the Three Gorges Reservoir Region

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 470, P. 143252 - 143252

Published: July 26, 2024

Language: Английский

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