Analysis of Spatio-Temporal Evolution and Driving Factors of Eco-Environmental Quality during Highway Construction Based on RSEI

Land, Journal Year: 2024, Volume and Issue: 13(4), P. 504 - 504

Published: April 12, 2024

One essential part of transportation infrastructure is highways. The surrounding eco-environment greatly impacted by the construction However, few studies have investigated changes in eco-environmental quality during highway construction, and main impact areas not been clarified. from Sunit Right Banner to Huade (Inner Mongolia–Hebei border) was used as study area. GEE establish RSEI. During Sen + M-K trend analysis, Hurst Geodetector were employed assess RSEI driving factors. results show following: (1) An area 1500 m around where ecological will be greatest. (2) curve annual mean 2016 2021 V-shaped. From northwest southeast, there an increasing spatial distribution. (3) largest environmental degradation occurred first year construction. (4) factor detector indicate that DEM, precipitation, distance administrative district, FVC drivers research region. interaction detector’s findings drivers’ combined influence on greater than their individual components. (5) Compared 2016–2021 trend, proportion future degraded terms increase 3.16%, while improved decrease 2.99%.

Language: Английский

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Enhancing ecological connectivity in the Qilian Mountains: Integrating GCA and optimized MST models for ecological corridor construction

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112525 - 112525

Published: Aug. 23, 2024

Language: Английский

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Optimization Study on Stakeholder Capability Configuration in Green Construction

Buildings, Journal Year: 2024, Volume and Issue: 14(10), P. 3135 - 3135

Published: Oct. 1, 2024

Green construction is considered to be a model that pursues high resource efficiency and the utilization of reduced environmental impacts through technological innovation management optimization under realization project’s iron triangle. The its performance relies on level stakeholder capability configuration. To reveal optimal configuration interaction between regulators executors, this study constructed utility based post-positivist methodology. By analyzing coordination levels executors according practices constraints green construction, conducted static analysis compare effects marginal value regulators’ input coefficients. Finally, sensitivity uncovers changes in coefficients at different stages construction. results indicate cannot maintained long term; continuous from required for sustained support. Only by eliminating external uncertainties, reducing variable costs advancing controlling their risk aversion can truly motivated promote both adjusts with corresponding values. shows trend initially increasing then decreasing as progressive coefficient rises. proposed ensures final stabilizes relatively level, which 0.6 0.7. In summary, breakthrough findings provide critical insights into management, contributing achievement anticipated objectives.

Language: Английский

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Responses of the Siberian crane population to temporal and spatial hydrological variations in stopover sites in northeast China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110635 - 110635

Published: July 12, 2023

The Siberian crane (Grus leucogeranus), a critically endangered species, is used as an indicator species for ecosystem stability because of its sensitivity to the environment. distribution cranes has shown dramatic fluctuations on order magnitude at main stopover site (Jilin Momoge National Nature Reserve) since present century, which poses great challenge conservation species. Research threshold values key factors in habitats and relationship between hydrological temporal spatial can promote conservation. response population changes patterns wetlands was analyzed from 1984 2020. results showed that were highly correlated with study area, their variation trend same. However, there obvious stage migration core activity area (1984–2000, 2001–2010 2010–2020). habitat characteristics fragmentation, dispersion complex shape water bodies changed steady then leveled off during 37 years transit. This closely related early agricultural reclamation later ecological replenishment project area. In addition, pattern index active also selection preference. When perimeter fractal dimension (1.27–1.40), landscape division (0.73–0.95) aggregation (80.97–91.36) are within certain stable threshold, suitable. will provide scientific guidance development wetland restoration projects.

Language: Английский

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Examining the Spatial Structure of Woody Cover Within a Highway Road Effect Zone for Ocelots in Texas

Urban Ecosystems, Journal Year: 2023, Volume and Issue: 26(4), P. 1057 - 1069

Published: May 1, 2023

Abstract Assessment of locations where wildlife species cross highways is a key question in mitigating future wildlife-vehicle mortality. Examination the spatial structure, complexities, and patterns vegetation or other land-use types (i.e., cropland, urban areas) near roadways allows scientists to identify any thresholds that influence animals are likely die successfully roadway. We used historic 1982 2017 dataset ocelot ( Leopardus pardalis ) mortality approximate road crossing telemetered ocelots Lower Rio Grande Valley Texas examine structure woody within hypothesized effect zone. determined if there were differences cover 1050 m buffer each successful roadkill location using PERMANOVA principal component analyses. similarity percentages analysis determine relative contribution aspect on locations. found statistically significant attributes patches at versus 150 extent (pseudo-F 1,41 = 4.85, P(perm) 0.008, permutations 9949). Largest patch index contributed most between (15.94%), followed by mean area (15.44%), percent (15.18%), aggregation indices (14.53%), Euclidean nearest neighbor (13.47%), edge (13.08%) densities (12.36%). Roadkill clustered with lower-quality 300 highway. This suggests areas immediately surrounding roads need contain larger closer together reduce barrier-effects roads. Such information important for informing highway planners about encourage crossings build structures promote movement across

Language: Английский

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Risk Assessment of High-grade Highway Construction Based on Combined Weighting and Fuzzy Mathematics

Journal of Civil and Hydraulic Engineering, Journal Year: 2024, Volume and Issue: 2(1), P. 16 - 30

Published: Jan. 26, 2024

High-grade highways are an important part of the modern comprehensive transportation system. However, due to frequent natural disasters, harsh meteorological conditions, and fragile geological environments, high-grade highway construction projects face significant risks, how specifically manage control these risks reduce them a socially acceptable level has become pressing technical issue. Therefore, this study combines characteristics risk features highways, applies Hall's three-dimensional structural theory comprehensively identify potential factors from dimensions time, structure, logic, builds logical dimension four aspects: people, materials, environment, management. To filter main influencing factors, Delphi method is adopted construct assessment indicator system, with expert opinions fully taken into consideration. address subjectivity in weight calculation process indicators, Analytic Hierarchy Process (AHP) Entropy Weight Method used calculate subjective objective weights, respectively. A combined weighting model established based on game principles optimize weights indicators. In view fuzziness during construction, fuzzy mathematics introduced model. study, applied Elsiyah Highway clarify project propose targeted measures. The results show that relatively high. conditionally acceptable, but measures must be risks.

Language: Английский

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The Influence of Ring Roads on Traffic Characteristics in Urban Cities

BIO Web of Conferences, Journal Year: 2024, Volume and Issue: 97, P. 00067 - 00067

Published: Jan. 1, 2024

Constructing ring roads is a traditional approach to alleviating traffic congestion in urban areas and enhancing road capacity. However, this solution frequently inefficient the long run. This study investigates different strategies for managing evaluates their efficacy. The text examines three situations where various methods were employed address issues. These are categorized into distinct categories. initial concept encompasses substantial engineering interventions, such as establishment of roads, creation new roadways, enlargement preexisting roads. Many cities implementing push-and-pull optimize existing capacities promote environmentally friendly transportation alternatives, thereby reducing car usage. include promoting public transportation, cycling, walking, well modifying land use patterns minimize need people travel. successful delivering long-lasting solutions. Nevertheless, more than push-pull needed adequately congestion, necessitating extensive interventions expand capacity, particularly cases severe areas. integration these third principle. utilization also gives rise numerous novel challenges, metropolitan predominant issue lies unregulated expansion houses (urban sprawl) inadequate transportation. problems identified significant magnitude Interconnectivity between regions, point intersect, accessibility housing, settlement amenities, social challenges. determined that tackle could be most efficient constructing To difficulties involved construction development circular it would beneficial establish an organization facilitates coordination among all stakeholders right from outset. Urban Planning Directorates at governorate level responsible carrying out work cities. In addition, rigorous enforcement laws crucial achieving desired goal.

Language: Английский

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Assessment of the Impact of Road Construction on the Ecological Environment

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(23), P. 4478 - 4478

Published: Nov. 28, 2024

In recent years, China has made remarkable progress in infrastructure construction, which greatly contributed to the development of regional economy. However, impacts construction on ecological environment are increasing concern. This study aimed quantitatively assess two expressways (the Chanliu Expressway and Linghua Expressway) constructed during different time periods, impact road ecosystem effectiveness Chinese government’s efforts environmental protection. The pressure–state–response (PSR) model was adopted, integrates a variety remote sensing indicators. pressure, state, response pre-, mid-, post-construction periods were assessed. results reveal that (1999–2002) Expressways (2019–2023) ecosystems different. For Expressway, pressure continually increased, state significantly declined period. When finished, continuously deteriorated. due lack effective protective measures its construction. contrast, experienced reduced period, with remaining relatively stable, as more implemented. it later relied natural recovery, led an increase indicate China’s have achieved significant years. future, is essential maintain long-term health by strengthening restoration management continuous monitoring.

Language: Английский

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Deep learning-based study on assessment and enhancement strategy for geological disaster emergency evacuation capacity in Changbai Mountain North Scenic Area

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Dec. 28, 2024

This study focuses on the northern scenic area of Changbai Mountain, aiming to evaluate emergency evacuation capacity region in context geological disasters and formulate corresponding improvement strategies. Due relatively small this region, difficulties data acquisition, insufficient precision, traditional models for evaluating are typically applied urban built environments, with few studies addressing areas. To tackle these issues, research employs Real-Enhanced Super-Resolution Generative Adversarial Network (Real-ESRGAN), which successfully resolves problem blurriness remote sensing images significantly enhances image clarity. Coupled Graph Convolutional (GCN) model, calculates time each raster point, providing a comprehensive assessment region's capacity. Based evaluation results, proposes targeted measures areas identified as having poor capacity, taking into account existing infrastructure area. By constructing an indicator system encompassing effectiveness, accessibility, safety, feasibility proposed enhancement strategy is assessed scientifically rationally. Through integrated tools methodologies, improves accuracy processing, evaluation, decision support, showcasing approach that provides critical support disaster management, planning, overall safety Mountain

Language: Английский

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Evaluation on the performance of highway companies using goal programming model

E3S Web of Conferences, Journal Year: 2023, Volume and Issue: 405, P. 03006 - 03006

Published: Jan. 1, 2023

Highway companies engage in projects with governments through the concession model which governments’ aim is fulfilling public interest while highway to increase their financial stability. However, face various operational risks that would impede excellency. Therefore, this paper aims assess performances of goal programming (GP) model. The GP a powerful tool solving multi-objective issues. This studies listed companies, namely LITRAK, TALIWRK, and EDGENTA from 2017 2022 using data. Based on optimal solution model, all three have reached goals for assets, equities, optimum management items. underachievement liability management. has identified potential improvements these further improvement based benchmark values.

Language: Английский

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