Fushun City Research Articles

Influence of large open-pit mines on the construction and optimization of urban ecological networks: A case study of Fushun City, China

Influence of large open-pit mines on the construction and optimization of urban ecological networks: A case study of Fushun City, China

Integrating fuzzy analytic hierarchy process into ecosystem service-based spatial planning: A case study of the Shenyang metropolitan area, China

Incorporating ecosystem services (ESs) into spatial planning is crucial for effective environmental management and achieving sustainable development goals. While the Analytic Hierarchy Process (AHP) is a commonly employed method for multicriteria analysis of ESs, it has faced criticism for its limited ability to handle inherent imprecision and uncertainties. Consequently, we proposed an assessment framework for ESs using the Fuzzy Analytic Hierarchy Process (FAHP) and implemented it in the Shenyang Metropolitan Area (SMA), a key political and economic center in Northeast China. We quantified eight types of ESs (water yield, food supply, water regulation, carbon storage, waste regulation, soil retention, habitat quality, and outdoor recreation) within SMA. The FAHP was utilized to determine the weights of these ESs. Subsequently, we presented a normalized index to identify priority conservation and development areas. Our results indicated that the primary areas for conservation were mainly located in the southwest and east of Benxi City, the southeast of Fushun City, and the southeast of Anshan City, whereas areas for development were primarily in the northwest of Shenyang City. Through comparing various ES integration methods, our study underscores the effectiveness of FAHP in ES evaluation. The research also highlights the challenge of managing uncertainties in ES-based policy-making and emphasizes the necessity for resilient and comprehensive planning approaches.

Myopia: Its Status and Environmental Correlations Among School Students in Fushun, China.

Our objective was to investigate the status and influence of myopia among primary school students in Fushun, Liaoning Province, China. We aimed to provide a theoretical and epistemological basis for implementing myopia prevention initiatives. We employed cluster sampling and surveyed 5216 primary school students from grades 1-6 across eight primary schools in Fushun City. Our participants included 2606 males and 2610 females whose average age was 9.25 (SD = 1.76) years. The rate of myopia among these primary school students was 29.54%, with statistically significant differences among students of different genders and grades. Logistic regression analysis further identified several possible protective factors, including appropriate reading distance, adequate home lighting, regular breaks between classes, conscientious eye exercises, and daily outdoor physical activity. Conversely, the associated risk factors were being female, being in a higher grade level, spending more than 4hours on homework, occasionally reading while lying down, and having one or both parents with myopia. Overall, our results indicated a high incidence of myopia, highlighting the need for scientifically controlled interventions to manage and mitigate the occurrence and progression of myopia in this population.

Inocellia (Amurinocellia) calida (Raphidioptera, Inocelliidae) was first observed as a predator of Monochamussaltuarius (Coleoptera, Cerambycidae) in China, the vector of Bursaphelenchusxylophilus (Aphelenchida, Aphelenchoididae).

Monochamussaltuarius Gebler (Coleoptera, Cerambycidae) serves as the primary carrier of Bursaphelenchusxylophilus (Steiner & Buhrer) (Aphelenchida, Aphelenchoididae) in the middle-temperate zone of China. Pine wilt disease caused by B.xylophilus leads to serious losses to pine forestry around the world. It is necessary to study the biological control of M.saltuarius to effectively prevent the further spread of B.xylophilus. To explore the insect resources that act as natural enemies of M.saltuarius, investigations were conducted on natural enemy insects by splitting Pinuskoraiensis Siebold & Zucc (Pinales, Pinaceae) damaged by M.saltuarius and dissecting their trunks in Yingpan Village, Fushun County, Fushun City, Liaoning Province, China, in 2023. A larva of Inocellia (Amurinocellia) calida (H. Aspöck & U. Aspöck) (Raphidioptera, Inocelliidae) was discovered in the trunk of an infested P.koraiensis. Additionally, the feeding habits of I.calida were preliminarily examined under indoor conditions and a description of its morphological characteristics was provided. When placed in an indoor environment, the I.calida larva began pupating after a period of 21 days, during which time it consumed and attacked a total of 23 M.saltuarius larvae. Ultimately, after a pupal period of ten days, the I.calida larva emerged successfully as an adult. This discovery marks the first recorded presence of I.calida in Liaoning Province and the first documentation of I.calida in China, serving as a natural predatory enemy of M.saltuarius.

Housing vacancy identification in shrinking cities based on multi-source data: A case study of Fushun city in Northeast China

Housing vacancy identification in shrinking cities based on multi-source data: A case study of Fushun city in Northeast China

Industrial structure, energy mix and low-carbon economy: A case study of Fushun City

The strategic goals of carbon peak and carbon neutrality are important for China's economic and financial development, which reflect the idea of co-development of economy and ecological civilization. This paper selects the region with high carbon emission in China, Liaoning Province, and takes Fushun City as the object of study. This paper first uses data to explain the economic status of Fushun city, then empirically investigates the relationship between industrial structure and low-carbon economy and make suggestions based on the analysis.

First report of Fusarium oxysporum causing root rot of Gentiana scabra bunge (Adenophora capillaris) in China.

Gentiana scabra bunge (Adenophora capillaris) is a traditional Chinese medicine crop in the northeast China. In July 2019, the root rot symptoms of A. capillaris were observed in its production field (approximately 1.3 hectares) iningyuan Manchu Autonomous County (41º47'28" N, 124º21'35" E), Fushun City in Liaoning province, China. Typical symptom included wilting, darkening, and rotting of the root collar and vascular bundle, leading to plant defoliation and death. Approximately 25% of the plants in the field showed the symptoms, with 2-year-old plants having more severe symptoms. Root tissue samples were collected from the diseased plants, surface-sterilized with 75% ethanol for 30 s, followed by 2% NaClO for 5 min, rinsed three times in sterile distilled water, and plated onto potato dextrose agar (PDA). After 3 days of incubation at 25 °C, white Fusarium-like colonies grew out from the symptomatic root tissue pieces. Five single-spore isolates were obtained from 10-day-old cultures using single-spore isolating technique. The fungus produced many macroconidia with the typical macroconidia of Fusarium spp. on carnation leaf agar (CLA) after 18 days of incubation at 26°C. They were falculate, slender and slightly curved, and their cells at both ends were sharp. Macroconidia had 3 to 5 septa, measuring 24.8 to 48.6 × 3.5 to 6.4 μm (n=50). Microconidia had 1 to 2 septa, elliptical, rounded tip, measuring 6.7 to 22.5 × 2.4 to 5.5 μm (n=5). Morphologically, the isolates were identified as Fusarium oxysporum (Leslie and Summerell 2006). For molecular identification, the internal transcribed spacer (ITS) region of rDNA and the translation elongation factor-1a (TEF-1α) of Isolate LD528-1 were amplified with the general primer ITS1/ITS4 and TEF-1α primer EF-1/EF-2 (O'Donnell et al. 1998). The resulting sequences were deposited in GenBank (acc. nos. MW418098 and MW423622). BLASTn analysis of the ITS sequence (KU939043) and TEF sequence (MW423622) revealed 99.06% sequence identity with F. oxysporum (KU939043) and 100% with F. oxysporum (MN892354), respectively. For pathogenicity test, a pot experiment was conducted in a greenhouse with 22 to 28°C and 65 to 90% relative humidity. Roots of A. capillaris were dipped in a spore suspension (1×107 conidia/ml) of Isolate LD528-1 for approximately 5 min, and then planted into the pots filled with sterilized field soil. Root dipped in sterilized water served as the controls. There were five pots for the inoculation treatment and three pots for the control treatment. All treated pots were placed and maintained in the greenhouse. After 15 days, 80% of inoculated plants were infected, with the symptoms similar to those observed in the field. The plants in the control treatment did not develop any symptoms. The same fungus was re-isolated from the diseased root tissue and confirmed by morphological and molecular assays as described above. This is the first report of F. oxysporum causing root rot of gentiana scabra bunge in China. This disease can become one of most important diseases in gentiana scabra bunge in China.

Identification and Characterization of Sclerotium delphinii Causing Southern Blight on Aconitum kusnezoffii in Northeast China.

Aconitum kusnezoffii is a perennial medicinal plant that belongs to the Ranunculaceae family and is distributed mainly in Northeast and North China. In July 2018, a typical southern blight disease of A. kusnezoffii was observed in commercial fields of Qingyuan County, Fushun City, Liaoning Province, China. The fungus mainly infected stem base and tuberous roots of the plant by wrapping the hyphae and absorbing nutrition, resulting in tuberous root wilted or whole plant death. Morphological characteristics of colony and sclerotia of three representative strains isolated from the diseased plants differed from those of Sclerotium rolfsii isolated from A. carmichaelii. Sclerotia were large (0.8 to 5.1 mm), reddish-brown, and irregular and had pitted surfaces, and the hyphae were white, compact, or fluffy, with a growth rate ranging from 8.0 to 10.1 mm/day. Phylogenetic analysis of the internal transcribed spacer and the large subunit sequences of Akln6, Akln9, and Akln15 showed that three strains isolated from A. kusnezoffii formed a unique and well-supported clade that groups with the reference isolates of S. delphinii. Based on phylogenetic analysis and cultural and morphological characteristics, the three isolates of A. kusnezoffii were identified as S. delphinii. The optimum temperature for mycelial growth of the three tested isolates was 30°C, and sclerotia formed and matured more easily at 20°C. Light promoted the growth of mycelial, whereas dark was beneficial to the formation and maturation of sclerotia. The pathogenicity of S. delphinii showed stronger than S. rolfsii at low temperature (20°C). This is the first report of S. delphinii causing southern blight on A. kusnezoffii in China, and this finding provides a basis for disease-accurate diagnosis and the development of effective management strategies.

Nanoindentation-based characterization of micromechanical properties of greenish mudstone from deep Fushun West open-pit mine (Fushun city, China)

Nanoindentation-based characterization of micromechanical properties of greenish mudstone from deep Fushun West open-pit mine (Fushun city, China)

Research on Countermeasures for Private Colleges and Universities to Promote the Development of Local Folk Culture under the New Momentum Strategy

Excellent folk culture is a valuable asset of traditional culture and an important resource for traditional cultural education and quality education for students. It is especially valuable for deepening the ideological and political education of students in private colleges and universities. The development of folk culture education by local private colleges and universities has the significance of improving the overall quality of students, promoting the construction of campus culture, and promoting the construction of local culture. It should follow the complementarity of local culture and Chinese culture, the connection of professionalism and national spirit, art education and patriotic education. The principle of integration, the distinction between cultural essence and cultural dross. Private colleges and universities should cultivate students' folk culture literacy, bring folk culture into campuses and classrooms, so that students can truly feel the value of folk culture, understand the history of folk culture, and better inherit folk culture. Doing a good job in ideological and political education in private colleges and universities in the new era requires a comprehensive understanding, deep thinking, and full play of the positive value of excellent folk culture, and the actual effects of ideological and political education in private colleges and universities. Culture is not only a spiritual force, but also productivity. "Culture +" can increase mutual promotion. For Fushun City in Liaoning Province, it is necessary to combine the local characteristic culture and give the culture new vitality.

The Association of the Prevalence of Depression in Type 2 Diabetes Mellitus with Visual-Related Quality of Life and Social Support.

AimTo report the prevalence of depression and its association with vision-related quality of life and social support in a type 2 diabetes mellitus (T2DM) population.MethodsPatients were recruited from a community-based study, Fushun Diabetic Retinopathy Cohort Study (FS-DIRECT), conducted between July 2012 and May 2013 in China. Depression was assessed using the Centre for Epidemiological Studies Depression Scale (CES-D). Vision-related quality of life was evaluated using the Visual Function Questionnaire-25 (VFQ-25). Social support was captured with the Social Support Rating Scale (SSRS). Generalized linear models were used to estimate the individual and joint association of VFQ-25 composite score (VFQCS) and SSRS score (SSRSS) with depression.ResultsA total of 1618 subjects (60.9% female) aged 61.69 ± 8.72 years in an urban district of Jiangjun Street, Fushun City, Liaoning province, Northeast China from July 2012 to May 2013 were recruited, of which, 23.36% (95% CI: 21.30–25.42%) were identified with depression. Every 14.1 increase in VFQ-25 composite score decreased the risk of depression by half (OR = 0.5; 95% CI: 0.4–0.6); with the elevation of 10.0 SSRS score the risk of depression decreased by 40% (OR = 0.6; 95% CI: 0.5–0.7). Patients with the VFQCS less than 91.3 and SSRSS less than 38.0 had 5.9 times more risk of depression (OR = 5.9; 95% CI: 3.6–9.7). Age (over 60 years) (OR = 0.6; 95% CI: 0.4–0.9) and medical history of cardiovascular disease (OR = 1.7; 95% CI: 1.1–2.5) were independently correlated with depression symptom.ConclusionThe prevalence of depression is high among patients with T2DM in urban district in northeast China. Vision-related quality of life and social support scores are significantly associated with depression. Measures should be taken to screen depressive symptoms in patients with type 2 diabetes patients. These patients need to be intervened with appropriate and effective treatment as early as possible. Meanwhile, behavioral health specialists should guide the patient to get and use social support sources effectively.

Top-down spatial developments and bottom-up consumption of space: Merits at the micro-scale in China's shrinking cities

Current studies on urban shrinkage tend to regard the phenomenon as city-level processes with an overlook on its inner complexity. Due to the ongoing urbanisation and pro-growth planning paradigm, spatial developments in shrinking cities in China has been especially complex. Therefore, this paper addresses such complexity and leverages on the neighbourhood change theory to investigate the relationship between spatial developments led by elite-structured urban policy and local people's consumption of space at the neighbourhood level. Both formal and informal practices generated by local people are regarded as influencing neighbourhood change. An embedded case study was conducted in Fushun city in Northeast China. Top-down spatial developments in Fushun reflects the pursuit of neighbourhoods' exchange values. Local people are found to consume urban space in different manners due to the detached nature of urban planning and policy from the local context. Informal practices are responsive to the wider structural underpinnings and have become a force shaping urban space under the shrinkage context. Considering current mono-visioned urban planning and policy, there is a need for a comprehensive planning approach incorporating the consumption of space when addressing the issue of urban shrinkage.

First report of seedling blight of maize caused by Fusarium asiaticum in Northeast China.

Maize [Zea mays L.] is animportantfood and feed crops in northeast of China. In 2019, maize seedling blight with an incidence of up to 25% was found at the field in Fushun city of Liaoning Province. Typical symptoms of seedlings were yellow, thin, wilt and die. The leaves gradually became yellow from the base of the plant to the top. Root system was poorly developed. The primary roots were usually discolored and rotted. And faintly pink or puce-coloured mould was found on seeds of the rotted seedings. Symptomatic roots of diseased seedling were collected and surface-disinfested with 70% ethanol for 1 min and then in 2% NaClO for 3 min, rinsed with sterilized water three times, cut into small pieces and placed on potato dextrose agar (PDA) medium for 5 days at 25 °C. Colonies on PDA were pink to dark red with fluffy aerial mycelium and red to aubergine pigmentation with the age. The causal agent was transferred to carnation leaf agar (CLA) medium and incubated at 25°C under a 12-h light-dark cycle. 12 Pure cultures were obtained from single conidia with an inoculation needle under stereomicroscope. The harvested macroconidia were hyaline, falcate with single foot cells, 3-5 septate and 28.2- 43.5 μm × 3.7 - 4.9 μm. Chlamydospores were globose to subglobose (5 to 13.5 μm). No microconidia were found. The perithecia were black, ostiolate subglobose. Asci were hyaline, clavate, measuring 58.1- 83.9 µm × 7.7- 11.9 µm and contained eight ascospores. Morphological characters of the pathogen agreed well with descriptions of Fusarium asiaticum (O'Donnell et al.2004; Leslie and Summerell 2006). To confirm the identity, partial translation elongation factor 1 alpha (TEF1-a) gene and rDNA internal transcribed spacer (ITS) region of isolate MSBL-4 were amplified and sequenced (O'Donnell et al. 2015; White et al.1990). BLASTn analysis of both TEF sequence (MT330257) and ITS sequence (MT322117), revealed 100% sequence identity with F. asiaticum KT380116 and KX527878, respectively. The isolate MSBL-4 was NIV chemotype as determined by Tri13F/DON, Tri13NIV/R (Chandler et al, 2003) assays. Pathogenicity studies were conducted on maize hybrid "Liaodan 565". Inoculum of F. asiaticum was prepared from the culture of MSBL-4 incubate in 2% mung beans juice on a shaker (150 rpm) at 25°C for 48 hours. The five liter pots (10 pots) were filled with sterilized field soil and five of them were mixed with conidial suspension (300mL in each pot) at 2 × 105 conidia per ml. Ten kernels per pot were surface disinfected in 2% sodium hypochlorite for 5 min, rinsed with sterilized water and planted. Five pots were inoculated and another uninoculated five pots served as controls. The pots were maintained in a greenhouse at 22-26°C for 40 days. Leaves of the plants in inoculated pots were yellowing and the roots became discolored or necrotic rot at 4 weeks after seedling emergence. All characteristics of the disease were similar to those observed in field. Non-inoculated control plants had no symptoms. Fusarium asiaticum was reisolated from inoculated plants and was identical to the original isolate. The experiment was repeated once with similar results. To our knowledge, this is the first report of seedling blight caused by F. asiaticum on maize in northeast China, and it has posed a threat to maize production of China.

Investigation of Pinewood Nematodes in Pinus tabuliformis Carr. under Low-Temperature Conditions in Fushun, China

In recent years, the pinewood nematode has continuously adapted to low-temperature environments and expanded from the South to the North of China. In December 2018, a large area of pinewood nematode was suspected to be harmful to Pinus tabuliformis under natural conditions in Fushun City, Liaoning Province. In order to clarify the low-temperature environment and population characteristics of pinewood nematodes in this new epidemic area, we analyzed the difference in temperature between the inside and outside of P. tabuliformis in low-temperature environments, conducted the morphological and molecular identification of pinewood nematodes in P. tabuliformis, summarized the distribution characteristics of the wintering of pinewood nematodes and explored the population structure of pinewood nematodes under different low-temperature conditions. The results indicated that the diurnal variation of temperature in dead P. tabuliformis was significantly less than the environment temperature. The lowest temperature in P. tabuliformis was 3.2 °C higher than the lowest temperature in the environment in one day; the pathogen of a large area of dead P. tabuliformis in Fushun was pinewood nematode (Bursaphelenchus xylophilus); 84.9% of the average populations of pinewood nematodes were third-stage dispersal juveniles, which mainly gathered in 5 cm within the pupal chamber of Monochamus saltuarius Gebler. At −40 ℃, most of the third-stage dispersal juveniles of pinewood nematode in dead pine can still survive. Our study laid a foundation for the understanding of the low-temperature adaptation mechanism of pinewood nematode and contributed to the monitoring of pine wilt disease in the mid-temperate zone.

Uncertain Water Environment Carrying Capacity Simulation Based on the Monte Carlo Method-System Dynamics Model: A Case Study of Fushun City.

Water environment carrying capacity (WECC) is an effective indicator that can help resolve the contradiction between social and economic development and water environment pollution. Considering the complexity of the water environment and socioeconomic systems in Northeast China, this study establishes an evaluation index system and a system dynamics (SD) model of WECC in Fushun City, Liaoning, China, through the combination of the fuzzy analytic hierarchy process and SD. In consideration of the uncertainty of the future development of society, the Monte Carlo and scenario analysis methods are used to simulate the WECC of Fushun City. Results show that if the current social development mode is maintained, then the WECC in Fushun will have a slow improvement in the future, and a “general” carrying state with a WECC index of 0.566 in 2025 will be developed. Moreover, focusing on economic development (Scheme 1 with a WECC index of [0.22, 0.45] in 2025) or environmental protection (Scheme 2 with a WECC index of [0.48, 0.68] in 2025) cannot effectively improve the local water environment. Only by combining the two coordinated development modes (Scheme 3) can WECC be significantly improved and achieve “general” or “good” carrying state with a WECC index of [0.59, 0.79]. An important development of this study is that the probability of each scheme’s realization can be calculated after different schemes are formulated. In turn, the feasibility of the scheme will be evaluated after knowing the probability, so as to determine the path suitable for local development. This is of great significance for future urban planning.

Occurrence, Distribution, Source, and Health Risk Assessment of Polybrominated Diphenyl Ethers in Surface Soil from the Shen-Fu Region, Northeast China

The Shen-Fu region is an important urban area in northeast China. We report on a study of the distribution of polybrominated diphenyl ethers (PBDEs) in representative topsoil from this region. In the summer of 2016, 72 soil samples from three cities (Shenyang, Fushun, and Shen-Fu New City) were collected, which covered four land use types:urban, rural residential, cultivated, and woodland. We report on the concentrations, compositions, and distributions of 14 PBDEs in soil and explore their sources, and additionally undertake human exposure analysis and health risk assessments. The results showed that the concentration of ∑14PBDEs in the topsoil ranged from 0.279-50.719 ng·g-1(dry weight), with a mean of (10.466±9.246) ng·g-1. The concentrations of PBDEs was ranked for the cities as:Fushun > Shenyang > Shen-Fu New City > background, and for different land use types as:urban land > rural residential land > cultivated land > forest. Deca-PBDE had the highest proportion of all congeners, accounting for 81.25%-89.23% of all PBDEs. Source analysis indicated that commercial Deca-PBDE was the main source, contributing 66.06% of the total Deca-PBDE according to principal component analysis/multiple linear regression (PCA-MLR). Among five different age groups assessed for exposure, children in Fushun had the highest exposure dose:(20.98±25.01) ng·(kg·d)-1. In terms of different land types, the highest exposure dose was for children living in urban areas:(18.54±20.27) ng·(kg·d)-1. The non-oncogenic health risks in the Shen-Fu region are of a relatively low level.

Study on the Status Quo and Countermeasures of Rural Domestic Waste Pollution in Liaoning Province

At present, the problem of rural domestic garbage pollution in China is relatively serious, which restricts the sustainable development of rural areas. Therefore, it is very important to investigate and analyze the characteristics of rural domestic garbage generation and discuss countermeasures for the treatment of domestic garbage. This article is conducted a one-year follow-up survey of the characteristics of garbage generation in Zhenshang Village, Central Village, and Natural Village in Fushun City, Anshan City, Dandong City, Shenyang City, Tieling City, and Panjin City in Liaoning Province. Background, the amount, physical composition and change trend of rural domestic garbage were analyzed, and on this basis, countermeasures for rural domestic garbage treatment in Liaoning Province were proposed.

Prediction of PM2.5 concentration considering temporal and spatial features: A case study of Fushun, Liaoning Province

With the development of the urban industry in recent years, air pollution in areas such as factories and streets has become more and more serious. Air quality problems directly affect the normal lives of residents. Effectively predicting the future air condition in the area through relevant historical data has high application value for early warning of this area. Through the study of the previous monitoring data, it is found that the pollutant data of adjacent monitoring stations are correlated in more periods. Therefore, this paper proposes a hybrid model based on CNN and Bi-LSTM, using CNN to synthesize multiple adjacent stations with strong correlations to extract spatial features between data, and using Bi-LSTM to extract features in the time dimension to finally achieve pollutant concentration prediction. Using the historical data of 40 monitoring stations in different locations of Fushun city to conduct research. By comparing with the traditional prediction model, the results prove that the model proposed in this paper has higher accuracy and stronger robustness.

Rationale, Design, Methodology and Baseline Data of Fushun Diabetic Retinopathy Cohort Study (FS-DIRECT)

ABSTRACTPurpose: To describe the rationale, design, methodology and baseline characteristics of Fushun Diabetic Retinopathy Cohort Study (FS-DIRECT), a community-based prospective cohort study in patients with type 2 diabetes mellitus (T2DM) living in northeast China.Methods: Patients with T2DM, aged 30 years and above from communities of Fushun city, Liaoning province, China, were recruited. The presence and severity of the diabetic retinopathy (DR) were determined by a modified Early Treatment Diabetic Retinopathy Study (ETDRS) retinopathy scale of 6 fields fundus photographs. Detailed ocular examinations and questionnaires were collated, in addition to blood and urine sample collection.Results: Of the 2224 subjects eligible for the FS-DIRECT, 2033 (91.4%) participated in the study. The majority of participants were female (58.9%), the average age was 62.1 ± 9.1 years. The overall prevalence rates of DR, non-proliferative DR, proliferative DR, diabetic macular edema, and vision-threatening retinopathy were 44.3%, 40.0%, 4.3%, 15.2%, and 12.3%, respectively. Compared to the patients without DR, patients with DR had lower income, an earlier onset of diabetes, a longer duration of diabetes, higher proportion of insulin use, higher fasting plasma glucose, HbA1c, systolic blood pressure, total cholesterol and high density lipoprotein, as well as a higher level of urine protein (all P < .05).Conclusion: The baseline data of FS-DIRECT showed a high prevalence of DR in a community of northeast China. Further investigation will provide key information about the risk factors, impact, and trends of DR in this region.

The Analysis of Heavy Vehicle on Asphalt Pavement Service life based on Axle-mounted Traffic Volume Survey

Based on the surveied data of the G202 Heihe to Dalian on the Beisanjia station in Fushun City, Liaoning Province, the traffic conditions of the observation section of the station are analyzed. The continuous data is compared with the axle-load survey data, and the service life of the asphalt pavement in the year of data is analyzed. In order to make full use of real-time axle load-traffic survey data and accurately predict the remaining service life of asphalt pavement in an accurate and real-time manner, it is of great value to develop targeted asphalt pavement maintenance and protection countermeasures.