Time Variant Interval Linear Programming for Environmental Management Systems

Xiao, Zhuang; Du, Jun; Guo, Ying; Li, X.; Guo, Lucun

doi:10.3808/jei.202100453

Cited by 5 publications

(5 citation statements)

References 28 publications

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“…The increasing enrichment of MPs in the shoreline environment poses both ecological and social-economic risks. A systematic and in-depth understanding of the alteration and motion of MPs in the ocean environment is the basis and prerequisite for mitigation of these risks. , Previous studies have focused primarily on the characteristics of MPs under the influence of traditional factors, whereas less attention has been given to NBs in spite of the important role they play in the behavior and motion of MPs. In this study, behavior and motion of various MPs in the presence of NBs were evaluated, as well as the effect of salinity and external energy on the interaction of MPs and NBs.…”

Section: Resultsmentioning

confidence: 99%

Overlooked Role of Bulk Nanobubbles in the Alteration and Motion of Microplastics in the Ocean Environment

Wang

Lee

et al. 2023

Environ. Sci. Technol.

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The increasing enrichment of microplastics (MPs) in the shoreline environment poses both ecological and social-economic risks. The alteration and motion of MPs in the ocean under the effect of bulk nanobubbles (NBs) have been less extensively studied. In this study, we explored the behavior and movement of various MPs in the presence of bulk NBs. The role of salinity and external energy in the interactions between NBs and MPs was evaluated, and the mechanism underlying these interactions was analyzed. In the presence of NBs, the binding of MPs and NBs resulted in an increase in the measured average particle size and concentration. Meanwhile, NBs reduced the aggregation between MPs, while the NBs present combined with MPs to make them more stable in suspensions. The velocity of motion of MPs driven by NBs varies under different salinity conditions. The increase in ionic strength reduced the energy barrier between particles and promoted their aggregation. Thus, the binding of NBs and MPs became more stable, which in turn affected the movement of MPs in suspensions. Polyethylene (PE1) with small particle size was mainly affected by Brownian motion, and its rising was limited; therefore, polyethylene (PE2) with large particle size rose faster than PE1 in suspension, especially in the presence of NBs. The rising velocity of poly(tetrafluoroethylene) (PTFE) was higher than that of PE1 and PE2. However, when NBs were present, the trend of the change in velocity was the opposite compared to the absence of NBs for PTFE. Moreover, various types of MPs were found to be affected distinctly by external energy. The presence of NBs had a clear effect on PE under shaking conditions, whereas the effect on PTFE was less obvious.

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Section: Resultsmentioning

confidence: 99%

Overlooked Role of Bulk Nanobubbles in the Alteration and Motion of Microplastics in the Ocean Environment

Wang

Lee

et al. 2023

Environ. Sci. Technol.

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“…Figure compares the carbon cost and the bunker cost based on the bunker price distribution to investigate the relations among speed, bunker consumption, and carbon cost. This study uses various historical bunker data generated to model bunker price uncertainty because of the volatility of bunker prices. , The same Emission Control Area for sulfide encompasses the North Atlantic Ocean from the east coast of Canada to the west coast of Europe; , thus, the price range refers to the historical price of low-sulfur marine gas oil to satisfy the region’s requirements for low-sulfur emissions…”

Section: Resultsmentioning

confidence: 99%

Promoting Cross-Regional Integration of Maritime Emission Management: A Euro-American Linkage of Carbon Markets

Chen

et al. 2023

Environ. Sci. Technol.

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Reducing greenhouse gas emissions from maritime transport is an urgent topic. Some regional emissions trading systems (ETSs), buoyed by the globalized market-based measures (MBMs) plan of the International maritime organization, have initially assessed the feasibility of including maritime emissions under compliance obligations. However, including maritime emissions (which are interjurisdictional) in the existing ETSs is controversial, and globalized maritime MBMs remain elusive. Therefore, this study designed a joint bilateral maritime carbon market (BMCM) model based on the European ETS (EU-ETS) and Quebec ETS (QC-ETS). The carbon costs, speed optimization, and marginal abatement costs of three container routes under BMCM were analyzed. The results show that this Euro-American linkage achieves adequate emission coverage on specific routes and generates acceptable carbon costs for charterers. This study yields a positive result for the equal division of ETSs' exercising competence in cross-regional maritime transport and provides evidence for sectorspecific ETS links based on quantitative analysis.

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“…In recent years, the process, mechanism, and realization path of ES flows (Liu et al, 2017b), ES bundles (Tao et al, 2018), and land sense creation of ES Qin et al, 2022) has become the subject of scholarly attention. Ecosystem processes are altered by changing landscape patterns, resulting in impacts on the ability of ecosystems to produce goods and services (Fu et al, 2014;Li et al, 2015;Zou et al, 2017., Xiong et al, 2018Xiao et al, 2022) The results showed that increasing the land cover of forest, grassland, and canal in the study watershed would maximize the total ESV. Furthermore, the interaction between changes in landscape patterns and ES values was evaluated.…”

Section: Introductionmentioning

confidence: 86%

The Influence of Landscape Pattern Evolution on the Value of Ecosystem Services

Liu¹,

Ren²

2023

J ENVIRON INFORM LET

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Ecosystem services (ES) can link natural ecosystems with socioeconomic systems. The Yi River basin is one of the most important sub-basins of the Yellow River basin, and the landscape pattern of this basin has changed dramatically in recent years. However, the assessment of landscape patterns on ecosystem services value (ESV) in such basin has been little studied. Therefore, the temporal-spatial evolution of the landscape pattern and ESV of the Yi River basin was evaluated through the landscape indices analysis method and the method for evaluating the value equivalent factor in unit area, based on land cover data from 1987 to 2020. The effects of changes in landscape patterns on ESV were then quantified. The results show that (1) Forest was the dominant landscape type in the Yi River basin, followed by grassland, with the total area of both accounting for 80% of the basin area. From 1987 to 2020, the area of forest and construction land has increased, while that of farmland and grassland has decreased. In addition, the stability of the landscape within the basin was low, and the fragmentation of patches was serious. The landscape shape index (LSI) for 2015 and 2020 was 52.57 and 42.38, respectively, and Shannon's diversity index (SHDI) value increased from 1.04 to 1.17 in the same period, indicating that the degree of heterogeneity in the landscape of the Yi River basin was considerably reduced and the dominant patches were well connected. (2) From 1987 to 2020, the total ESV (supply, regulation, support, and cultural services) in the Yi River basin showed an “N” pattern of variation. Specifically, such total ESV increased noticeably from 1987 to 2005, decreased after 2005, bottomed out in 2015, and began to recover by 2020. Forest regulating services contributed the most to the total ESV at 77%. (3) The results of correlation analysis displayed that total ESV was negatively correlated with LSI and positively correlated with SHDI. Moreover, water supply services had a significant inverse relationship with the largest patch index (LPI), LSI, and SHDI. The LSI and patch density index (PD) had a strong positive correlation with biodiversity. Human activities (e.g., urbanization) were found to be the main drivers of a landscape pattern change and ESV decline in the Yi River basin, thus the level of biodiversity and overall ecosystem service provision in such basin can be improved by increasing the degree of landscape heterogeneity and reducing the complexity of landscape shape. The assessment of the evolution of landscape patterns and the quantification of its impact on ESV can help provide scientific information for improving the ecological qualify and supporting sustainable development in the Yi River basin.

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Time Variant Interval Linear Programming for Environmental Management Systems

Cited by 5 publications

References 28 publications

Overlooked Role of Bulk Nanobubbles in the Alteration and Motion of Microplastics in the Ocean Environment

Overlooked Role of Bulk Nanobubbles in the Alteration and Motion of Microplastics in the Ocean Environment

Promoting Cross-Regional Integration of Maritime Emission Management: A Euro-American Linkage of Carbon Markets

The Influence of Landscape Pattern Evolution on the Value of Ecosystem Services

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