Ecological security pattern construction and zoning along the China-Laos Railway based on the potential-connectedness-resilience framework

Bai, Haonan; Weng, Lingfei

doi:10.1016/j.ecolind.2022.109773

Cited by 22 publications

(7 citation statements)

References 67 publications

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“…These were the landscape fragmentation, isolation, dominance, disturbance, vulnerability, and loss indices (Table 2). The moving window method using a 15-km window was applied in Fragstats 4.2 to calculate the landscape pattern index of Laos (Bai and Weng, 2023;Xu et al, 2023). The window was moved from the left, upper section of the study area, and progressed at a single-grid step.…”

Section: Methods Used To Analyze the Landscape Pattern Indexmentioning

confidence: 99%

A landscape-based ecological hazard evaluation and characterization of influencing factors in Laos

Ma,

Khromykh,

Wang

et al. 2023

Front. Ecol. Evol.

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The study of the spatiotemporal evolution of landscape ecological hazard and human and natural influences is essential for conservative management and regional sustainable development. This study applied a landscape pattern analysis method and geodetector to multi-source data for 2000, 2010, and 2020 to analyze changes in and drivers of landscape ecological hazard in Laos. The results indicated that: (1) There were more prominent changes in landscape types in Laos. Forest area decreased, whereas the areas of other landscape types increased. There was an overall steady change in the landscape patterns of Laos. Besides for significant changes in the artificial surface landscape index, landscape indices remained stable; (2) The cumulative high and extreme ecological hazard areas increased by 1,947.81 km2, whereas the cumulative areas of low and minimal ecological hazard decreased by 8,461.8 km2. Areas of low and moderate ecological hazard accounted for > 85% of the total area. Areas of low ecological hazard were mainly in the northwest and southeast. The area of high ecological hazard was concentrated in the central and northeastern regions. The distributions of different landscape ecological hazards in Laos during the study period were similar, with general patterns of decreasing hazard from north to south; (3) A positive Moran’s I of landscape ecological hazard in Laos was obtained. While the agglomeration effect was pronounced, it decreased over time, resulting in a weakening in spatial autocorrelation. A significant positive autocorrelation was observed in the spatial distribution of landscape ecological hazard in the study area. Agglomerated areas of high and low ecological hazard were mainly concentrated in the northeast and southeast, respectively; (4) The spatiotemporal evolution of landscape ecological hazard in Laos over the last 20 years could be attributed to interactions between natural and anthropogenic influences. Natural influences were a significant driver of changes to landscape ecological hazard in Laos, with annual precipitation and average temperature being the most significant. Anthropogenic influences, including socioeconomic factors and regional accessibility, significantly impacted local ecological deterioration in Laos.

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Section: Methods Used To Analyze the Landscape Pattern Indexmentioning

confidence: 99%

A landscape-based ecological hazard evaluation and characterization of influencing factors in Laos

Ma,

Khromykh,

Wang

et al. 2023

Front. Ecol. Evol.

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“…China has constructed and participated in major railway projects, such as the Haramain High-Speed Railway, Qinghai-Tibet Railway, Yunnan-Tibet Railway, and Lalin Railway. Most of these railway projects have encountered construction safety risks, such as earthquakes, landslides, avalanches, mudslides, and other construction safety risks [15][16][17][18]. Some major railway projects cannot be quickly controlled because of the safety risks in the construction of the railway, resulting in severe delays in the construction period, injuries and deaths, a well as other serious consequences.…”

Section: Literature Review 21 Prevention and Control Of Safety Risks ...mentioning

confidence: 99%

The Use of Weighted Euclidean Distance to Provide Assistance in the Selection of Safety Risk Prevention and Control Strategies for Major Railway Projects

Guo,

Lv,

et al. 2024

Buildings

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A major railway project is a complex, giant system with multi-party participation, one characterized by complex geological conditions, long construction periods and large scale, which leads to an increased likelihood of safety risk events during construction. In order to solve the problem of scientific selection and formulation of safety risk prevention and control strategies for major railway projects, an auxiliary selection method of safety risk prevention and control strategies for major railway projects based on weighted Euclidean distance (WED) is proposed. The relevant ontology is used to conceptualize and formalize the knowledge of safety risks of major railroad projects, and combine the characteristics of major railroad projects; it refers to the prevention and control measures of historical safety risk events associated with major railroad projects, and then constructs the knowledge structure and case base around safety risks of major railroad projects and the circumstances of the case. In determining the comprehensive weights, the G1 method is used to determine the subjective weights, the anti-entropy weight method is used to determine the objective weights and game theory combines the subjective and objective weights. In comparing the array of safety risk prevention and control cases associated with major railway projects, the weighted Euclidean distance is used to calculate the similarity between these cases and the target case, which in turn assists project managers in determining the safety risk prevention and control strategies appropriate for major railway projects. This study takes Landslide No. 1 in the Tunnel A inlet planning area as an example. It utilizes the WED method to assist in selecting safety risk prevention and control strategies for major railway projects, which verifies the method’s feasibility. The proposed method enriches the method of the assisted selection of safety risk prevention and control strategies for major railway projects, makes strategy formulation more scientific, has specific reference significance for the formulation of safety risk prevention and control strategies for major railway projects, and promotes the improvement of safety risk prevention and risk control for participating units.

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“…Freight rail activity in exclusive freight trains is concentrated in China, the United States with a quarter and Russia a fifth of global freight activity. Minerals, agricultural products account for most of the railway activity (Bai & Weng, 2023).…”

Section: Transportationmentioning

confidence: 99%

Long-term supportable development programs for railway systems

Valladares-Estrada

2023

JURRE

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Supportable programs were embodied in 17 Supportable Development Goals and approved in the 2030 agenda of the United Nations Organization, to avoid environmental degradation and establish a more prosperous world, with peace and justice in the eradication of poverty. The objective of this research was to characterize the different stages of supportable programs for railway systems in the long term, considering the useful life of the railway infrastructure and the dependence on subsidies. However, the long-term supportable programs of rail systems supported by subsidies have the possibility of reaching a stage of maturity at the same time as the economic explosion of the environment, on the other hand, the longterm supportable programs of rail systems that do not have subsidies are intended for inoperability and lack of reinvestment. A mixed methodological analysis was carried out to identify the subsidy. parameters used by the supportable development programs in railway systems in their different stages of the project. Sources of formal and informal scientific, technical, and empirical information were the basis for identifying the strategic sources of subsidies that generate stability and quality of service.

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Ecological security pattern construction and zoning along the China-Laos Railway based on the potential-connectedness-resilience framework

Cited by 22 publications

References 67 publications

A landscape-based ecological hazard evaluation and characterization of influencing factors in Laos

A landscape-based ecological hazard evaluation and characterization of influencing factors in Laos

The Use of Weighted Euclidean Distance to Provide Assistance in the Selection of Safety Risk Prevention and Control Strategies for Major Railway Projects

Long-term supportable development programs for railway systems

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