Research on ecological evaluation of Shanghai port logistics based on emergy ecological footprint models

Xie, Benkai; Zhang, Xiaoxiao; Lu, Junling; Liu, Fan; Fan, Yingjie

doi:10.1016/j.ecolind.2022.108916

Cited by 25 publications

(13 citation statements)

References 7 publications

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“…The calculation of MEEC is based on the traditional calculation of emergy ecological carrying capacity of the natural environment, considering the positive role of human beings in improving regional resources and environmental carrying capacity (Peng et al, 2018) which has increased the socio-economic emergy ecological carrying capacity. MEEF mainly consists of two parts: the marine consumption resource footprint and marine pollution footprint (Xie et al, 2022). By measuring the ratio and difference between the MEEC and MEEF, the impact of human activity intensity on the marine ecosystem can be measured in order to determine the ecological security status of the marine ecosystem.…”

Section: Methodsmentioning

confidence: 99%

Marine ecological security assessment from the perspective of emergy ecological footprint

Wang¹,

Lin²,

Liu

2023

Front. Mar. Sci.

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IntroductionMarine ecological security assessments are considered as a basis for coordinating marine economic development and ecological protection.MethodsWe propose an assessment method based on the emergy ecological footprint which first measures the emergy of the natural and economic elements of the marine ecosystem. Considering the role of economic, social and waste discharge factors in the marine ecosystem, an ecological security evaluation index is constructed, and a dynamic evaluation is conducted based on long time series data to characterize the change trend of ecological security.ResultsThe Guangxi marine ecosystem was selected as the case study, and the ecological security dynamic evaluation was conducted by collecting data from 2008 to 2020. The results show that Guangxi's marine ecosystem has always been in an ecologically secure state, but since 2010, the emergy ecological footprint intensity has been increasing, indicating ecosystem deterioration. Therefore, some targeted suggestions are put forward.DiscussionThis method provides a new assessment tool for marine ecological security evaluation and offers guidance for the sustainable development and utilization of marine ecosystems.

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Section: Methodsmentioning

confidence: 99%

Marine ecological security assessment from the perspective of emergy ecological footprint

Wang¹,

Lin²,

Liu

2023

Front. Mar. Sci.

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“…First, research on Different Logistics Nodes: Research nodes on logistics efficiency in recent years have focused chiefly on logistics parks [10], provinces [11], railways [12], aviation [13], and sea transportation [14]. With the arrival of the post-industrial era, the logistics industry has gradually become the artery of the national economy, supporting the orderly flow of resource elements between cities, and resulting energy consumption and environmental pollution issues have become prominent; from a vertical perspective, academics began to focus on the issue of carbon emissions in logistics after 1995, [15] believing that the definition of carbon-neutral logistics is the low-carbon management of forward and reverse logistics processes.…”

Section: Literature Reviewmentioning

confidence: 99%

Green and Low-Carbon Efficiency Assessment of Urban Agglomeration Logistics Industry: Evidence from China’s Beijing-Tianjin-Hebei Metropolitan Area (2008–2020)

Wang,

Tian

2023

Sustainability

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With the advent of the post-industrial era, the rapid development of e-commerce has propelled the logistics industry to become the lifeline of the national economy, supporting the orderly flow of resource elements between cities. However, the concerning issues of excessive energy consumption and low logistics efficiency in the transportation process have come to the forefront. The introduction of China’s dual-carbon policy goals indicates that enhancing regional logistics’ green and low-carbon efficiency is key to solving the global logistic sustainability problem. Nowadays, the logistics sector’s efficiency in producing green and low-carbon emissions has been quantified using an input-output measurement index. Using data from 2008 to 2020 from the dynamic panel of the logistics sector in the urban agglomerations of Beijing, Tianjin, and Hebei, the three-stage SBM-DEA and Malmquist index quantitative evaluation models are selected to estimate the logistic green and low-carbon development efficiency comprehensively. The analysis discovered that green and low-carbon logistics in the Beijing-Tianjin-Hebei metropolitan agglomeration are relatively efficient overall, and the urban siphon effect of Beijing and Tianjin is noticeable. Once the impact of environmental variables and random errors is eliminated, it becomes evident that these factors tend to inflate the overall technical efficiency. Technical efficiency levels are the primary factor leading to regional logistics inefficiencies. Additionally, it is essential to note that scale efficiency positively affects urban development, leading to a rebound effect, summarizing the existing problems combined with the visualization map, and putting forward corresponding policy suggestions, which is of great practical significance.

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“…Based on the emergy analysis, the ecological footprint of a wind farm is estimated, which includes wind turbine production and transportation, construction, operation and maintenance, and demolition during the life cycle 28 . Based on the emergy ecological footprint model, the ecological status of logistics ports is analysed, and some suggestions for developing green logistics ports are put forwards 29 .…”

Section: Introductionmentioning

confidence: 99%

Ecological effect life cycle assessment of house buildings based on emergy footprint model

He,

Wang,

2023

Sci Rep

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Construction is an important sector for climate action. The construction, operation and maintenance, demolition and disposal stages of house buildings consume many resources and have a significant impact on society, the economy and the environment. To assess such efforts, we propose the emergy footprint model of house buildings, which can quantitatively analyse the ecological effect in the house buildings life cycle. The research shows the following. China’s ecological efficiency of the housing sector is characterized by improvement. In the house building fifty-year life cycle, the emergy footprint of the operation and maintenance stage is the largest (75.92%), followed by the construction stage (21.95%), but the emergy footprint intensity of the latter is 4.82 times that of the former. Reducing energy consumption and carbon dioxide emissions in the operation and maintenance stage is the key to reducing the life cycle emergy footprint of house buildings. The ecological impact coefficient of house buildings is negatively exponentially correlated with their service life. It reaches ecological break-even when the service period of the house building is equal to 36.73 years. If the house building is demolished after less than nine years of service, the impact is extremely unfavourable.

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Research on ecological evaluation of Shanghai port logistics based on emergy ecological footprint models

Cited by 25 publications

References 7 publications

Marine ecological security assessment from the perspective of emergy ecological footprint

Marine ecological security assessment from the perspective of emergy ecological footprint

Green and Low-Carbon Efficiency Assessment of Urban Agglomeration Logistics Industry: Evidence from China’s Beijing-Tianjin-Hebei Metropolitan Area (2008–2020)

Ecological effect life cycle assessment of house buildings based on emergy footprint model

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