Pucheng County Research Articles

A reasoning method for rice fertilization strategy based on spatiotemporal knowledge graph

AbstractThe lack of multidimensional knowledge means that current reasoning methods for rice fertilization cannot make decisions accurate when faced with complex spatiotemporal conditions in general. Therefore, we propose a reasoning method for rice fertilization strategy based on spatiotemporal knowledge graph. First, we systematically organize multisource expert knowledge about rice fertilization, and construct an ontology for rice fertilization consisting of five core elements: rice variety, planting environment, nutrition diagnosis, fertilization schemes, and time and place. Spatiotemporal differences in rice fertilization knowledge are expressed by assessing spatiotemporal concepts, relations, and state instances. Second, we propose a reasoning method for rice fertilization strategy based on the constructed knowledge graph. This method leverages a certainty factor model for nutrition diagnosis and integrates case‐based and rule‐based reasoning to determine fertilization schemes for different stages. Finally, taking Pucheng County, China, as an example, knowledge from crowd‐sensing data is obtained to construct a knowledge graph using the proposed method. The results demonstrate the method can support the expression and complex reasoning of rice fertilization decisions under different spatiotemporal conditions.

Formation mechanism of a disaster chain in Loess Plateau: A case study of the Pucheng County disaster chain on August 10, 2023, in Shaanxi Province, China

Under the heavy rainfall risk due to global warming, a new trend has emerged in geological disasters of loess, which have often evolved into a chain form of disaster chain of loess (DCL) in recent years. The DCL is characterized by multiple, hidden, catastrophic, and complex characteristics that seriously affect the construction and operation of large-scale infrastructure on the Loess Plateau. To understand the formation mechanism of a disaster chain of loess, we took the Shiyangpo DCL, a typical disaster chain occurring recently on the Loess Plateau, as an example to investigate the geomorphic features and deformation characteristics of DCL using new technologies and methods such as Unmanned Aerial Vehicle (UAV) mapping and Geographic Information Systems (GIS) spatial analysis technology. A series of special laboratory tests considering the vibration of the loess subgrade was conducted to explore the changes in physical and mechanical properties of loess samples in the study area under natural, saturated, and vibration conditions. Additionally, the trigger factors and evolution process of this DCL were analyzed, and the formation mechanism of recently emerging typical DCL was revealed as well. The triggering factors of the disaster were summarized as follows: loess nature, heavy rainfall, irrigation, irrational excavation, incomplete drainage channels, and long-term vehicle vibration of roadbeds. Furthermore, extreme rainfall was identified as the primary inducing factor of Shiyangpo DCL. Finally, the development and evolution of Shiyangpo DCL were divided into five stages: the formation of the loess sinkhole stage, the occurrence of the loess subsidence stage, the occurrence of the loess collapse stage, the occurrence of the loess landslide stage, and the formation of river-blocking and dammed lake stage. This study reveals the cause and evolution process of the newly emerged DCL in the Loess Plateau, and the new techniques and methods involved can provide references for the theoretical research and prevention of loess geological disasters in other places.

The Way and Necessity of Leadership Promoting the Efficient Operation of Human Resources in Pucheng Power Plant under the Transformation of New Energy

The largest thermal power plant in Shaanxi Province, Dang Pucheng (No. 2) Power Generation Co., Ltd. (hereafter referred to as Pudian business), is situated in Sunzhen Town, Pucheng County. On October 1,2020, Pudian's affiliation with China Huadian Group was terminated and transferred to China Datang Group. They are divided into Datang Pucheng Power Generation Co., Ltd. and Datang Pucheng No. 2 Power Generation Co., Ltd. with two brands and a specific set of organizational operation modes as a result of the various investors. The Pudian Company employs around 1400 people in 15 departments, and Pudian company's main business are: building and running power supply projects; producing and selling electricity; fully using and managing waste generated by power plants; providing consultancy services in the field of power technology; and training professionals in the field of thermal power operation and maintenance.Rapid Transfer of Talents from Thermal Power Plants to New Energy Power Generation Industry under "Double Carbon Goal" The human resource management of Pucheng Power Plant in the new energy power generating industry has not been extensively evaluated in the prior literature. Using Porter's five forces model and Maslow's demand theory. this study analyzes and proposes solutions to the challenges of Pucheng Power Plant in the growth of the new energy power generating industry. A brief introduction to the challenges in human resource management at Pucheng Power Plant Difficulties and Solutions in the Process of Green Transformation of Pucheng Power Plant Application and Suggestions Based on Porter's Five Forces Model and Maslow's Demand Theory.

Coupling and Coordination of Traffic and Tourism Development in Pucheng county Region Spatio-temporal Characteristics

The comprehensive development evaluation system of county transportation and tourism system was constructed, and the spatio-temporal characteristics of the coupled and coordinated development of pucheng county transportation and tourism system were analyzed by using the coupled and coordinated model. The results show that:1)In terms of the time series change of comprehensive development level, the development level of county transportation and tourism system showed a trend of sustained growth or steady development from 2016 to 2019, and the tourism development improved in 2020, but the county transportation was greatly affected by the epidemic situation, and the changes fluctuated obviously, and the two changes were unbalanced.2)On the change of coupling and coordination time series, the coupling degree remained at a high level with no obvious fluctuation, and the overall level of coupling and coordination was high, which indicated that traffic development effectively promoted the development of tourism.3)In the spatial evolution of coupling and coordination development, the coupling and coordination degree of counties in Weinan City in 2019 and 2020 is quite different. Except Fuping County and Chengcheng County, the coupling and coordination of transportation and tourism systems in all counties changed from coordination to imbalance. Pucheng county developed from primary coordination in 2019 to serious imbalance in 2020, which was greatly affected by the epidemic. Finally, based on the actual situation in Pucheng county, some suggestions are put forward for the development of county transportation and tourism.

Application of PCT, IL-6, CRP, and WBC for Diagnosing Neonatal Sepsis.

The purpose of this study was to investigate the diagnostic value of combined detection of PCT, IL-6, CRP, and WBC in neonatal sepsis. The study selected 50 neonatal sepsis patients treated in Pucheng County Hospital from April 2018 to June 2020 as the patient group, and 50 healthy newborns as the control group. Before treatment, white blood cell count (WBC) was performed on all neonates, and serum PCT, IL-6, and CRP levels were detected by ELISA. After treatment, serum levels of these four biomarkers in the effective/non-effective groups were observed. The results noted higher levels of these four biomarkers in the patient group rather than the control group before treatment, and in the effective group rather than the non-effective group after treatment. ROC analysis found that the area under curve (AUC), specificity and sensitivity of the combined detection were better than those of the single detection. In short, combined detection of these four biomarkers has a high diagnostic value for neonatal sepsis.

Research on the Impact of Digital Literacy on the Overall Income of Rural Households: A Case Study of 410 Questionnaires in Pucheng County, Shaanxi Province

To increase the income of farmers is an important goal of rural revitalization. Based on 410 questionnaires in Pucheng County, Shaanxi Province, this paper empirically tested the positive impact of rural households' digital literacy on income growth. The results show that digital literacy has a promoting effect on the income accumulation of farmers, and this effect shows a marginal decreasing feature in the structure of multiple income sources. The use of digital infrastructure can promote the improvement of digital literacy, but the use of Internet for the purpose of social life has no obvious effect on the improvement of household income. Digital activities such as working and learning can promote the increase of household wealth. Digital literacy enables low-cost access to relevant production information, which is conducive to cultivating awareness of the digital economy, transforming wealth into more valuable assets and increasing overall income.

Moving Closer to Village Tradition: Analysis of the Problem of “Dividing up Brigades and Teams” in the Early 1960s

Abstract From the end of the 1950s to the early 1960s, the Party Central made positive adjustments to the people’s commune system. Each tier of the system was downsized. Existing scholarship has mainly provided macro-narratives or policy analyses of this episode of history from the perspective of political history or institutional history. Using archives on “dividing up brigades and teams” of the communes in Pucheng county in Shaanxi province, this article contends that, during the collectivization period, the state neglected the pre-existing environmental, social, economic, and cultural characteristics of villages, as well as the relationships among the villages, in the process of integrating them into larger units of collective production with a higher degree of public ownership, thus engendering new conflicts and ruptures in local society. During the process of “dividing up brigades and teams,” individuals and collectives used their legitimate rights of division to maximize their own interests, during which multiple forces were at play. To some extent, this led to a return to long-standing village traditions. These findings are crucial for us to understand the history of the adjustments in the people’s commune system and to reflect on the institution of agricultural collectives in the pre-Reform era.

Rice Yield Simulation and Planting Suitability Environment Pattern Recognition at a Fine Scale

Analyzing rice yields and multidimensional environmental factors at a fine scale facilitates the discovery of the planting environment patterns that guide the spatial layout of rice production. This study uses Pucheng County, Fujian Province, a demonstration county of China Good Grains and Oils, as the research area. Using actual rice yield sample data and environment data, a yield simulation model based on random forest regression is constructed to realize a fine-scale simulation of rice yield and its spatial distribution pattern in Pucheng County. On this basis, we construct a method system to identify spatial combination patterns between rice yields and fine-scale multidimensional environmental planting suitability using rice yield data and environmental planting suitability evaluation data. We categorize the areas into four combination model areas to analyze the spatial correlation model of planting suitability, multidimensional environment, and yield: higher-yield and higher-suitability cluster–comprehensive environmental-advantage areas, high-yield and high-suitability cluster–soil condition-limited areas, moderate-yield and moderate-suitability cluster–irrigation and drainage condition-limited areas, and low-yield and low-suitability cluster–site condition-limited areas. The following results are found. (1) The rice yield simulation model, which is based on random forest regression, considers the various complex relationships between yield and natural as well as human factors to realize the refined simulation of rice yields at a county scale. (2) The county rice yield has a strong positive spatial correlation, and the spatial clustering characteristics are obvious; these relationships can provide a basis for effectively implementing intensive rice planting in Pucheng County. (3) We construct a spatial combination pattern recognition method based on rice yield and environmental planting suitability. We can use this method to effectively identify the spatial relationship between yield and planting suitability as well as the shortcomings and advantages of different regions in terms of the climate, soil, irrigation, site, mechanical farming, and similar factors. On this basis, we can provide regional rice planting guidance for Pucheng County. In addition, this method system also provides a new perspective and method for research into spatial combination models and related spatial issues.

Spatial Patterns and Determinants of Village Abandonment in the Mountainous Areas of China

The phenomenon of village abandonment has occurred during the past decades as an extreme result of rural migration in many developing countries. It has brought about many socio-economic and environmental problems, such as farmland abandonment, decapitalization of properties, rural economic stagnation or decline, disappearance of rural settlements, secondary vegetation succession, landscape homogenization and increasing risks of wild fires. Village abandonment has been happening widely in mountainous areas of China in response to increasing urbanization and industrialization. But the spatial patterns and determinants of village abandonment are not well understood. The aim of this study is to investigate the spatial patterns of abandoned villages using Kernel Density analysis, and to identify determinants of village abandonment using the Ordinary Least Square regression based on a case study in Pucheng County, Southeast China. Our results show that abandoned villages mainly agglomerate in some scattered kernels with higher elevations and poor accessibility or with thriving local industrialization and Insitu urbanization. These results corroborate previous findings elsewhere. Research on determinants identifies that public goods provision and accessibility are the most important predictors to explain substantial variations in village abandonment. Remote villages with poor public goods provision (such as road, healthcare and education) and poor accessibility are most possibly abandoned. With projected increasing concentration of elementary schools in townships and cities and rising urbanization, village abandonment is likely to increase in remote rural areas. However, natural conditions are surprisingly the least significant determinants, which is contrary to previous studies. In addition, hamlet size and the progress on characteristic agriculture have some negative impacts on village abandonment. Finally, several research prospects and policy implications on village abandonment have been proposed to promote future studies and rural sustainability respectively.

Analysis of the Characteristics of Ecological Security Zoning and Its Dynamic Change Pattern: A Case Study of the Weibei Area

The development pattern of agriculture and energy exploitation in the southern marginal area of the Loess Plateau is widespread in the northern part of China. As a typical example, the fragile ecological area in the Weibei region is greatly affected by human factors, which makes the local ecological environment and social sustainability disturbed to varying degrees. Taking the Weibei region as the study area, through the comprehensive analysis of social, economic, and climate data, an index system suitable for the ecological security assessment of the Weibei region was constructed. The ecological security of this region was quantitatively evaluated by spatial principal component analysis (SPCA), and its ecological security partition was divided and analyzed. There were five zones at different levels, and I to V represented the development of ecological security from a low level to a high level. The results showed that from 1997 to 2017, the ecological security of different districts and counties in the Weibei region showed different trends. For example, the ecological security index of Tongguan County, Chengcheng County, and Pucheng County continued to decrease, but the overall index value was still high, and the ecological security index of Dali County, Fuping County, and Hancheng County increased. During this period, the ecological security of regions I and II continued to increase, while regions IV and V first decreased and then increased. At the same time, the area of the ecological security buffer region increased year by year. This study can provide a feasible method for assessing ecological security of the current regional model of mixed agriculture and energy extraction industry.

Paternity analysis and SNP development for Osmanthus fragrans ‘pucheng dangui’ using SLAF-SEQ

Osmanthus fragrans ‘Pucheng Dangui’ is a new ornamental and urban-greening plant variety developed through long-term natural and artificial selection. Urban and rural horticultural industries in Pucheng County, Fujian Province, China, have developed rapidly and many nurseries now grow O. fragrans ‘Pucheng Dangui’ by cuttings. We developed a paternity test and SNP markers for O. fragrans ‘Pucheng Dangui’ using SLAF-seq to identify the fine variety O. fragrans ‘Pucheng Dangui’ based on molecular research. The genome sequence of Fraxinus excelsior was used as the reference to predict restriction enzyme digestion for O. fragrans ‘Pucheng Dangui’. Restriction enzyme digestion fragments between 400 and 480 bp length were defined as SLAF tags digested by the enzyme Hpy166II+EcoRV-HF®. A total of 413,743 SLAF tags was identified, of which 113,061 polymorphic SLAF tags and 353,073 population SNPs were derived. Analysis of the phylogenetic tree, the population admixture structure, the admixture K value cross validation error rate, and the PCA clustering figure showed that all 29 plant samples belonged to the same population, with no significant differences detected between samples. This comprehensive analysis of DNA polymorphisms provided valuable insights into the different individuals or populations of O. fragrans ‘Pucheng Dangui’ and it provided producers and vendors with confidence in the source of their plant material. This results provides a reliable method for researchers to identify O. fragrans ‘Pucheng Dangui’ from other O. fragransspecies or varieties by the molecular approach. The identification of intraspecific genetic variations also provides the basis for further development of individual plant analysis, identification and introgression breeding in other species.

What is driving the abandonment of villages in the mountains of Southeast China?

AbstractIn recent decades, village abandonment as a result of migration from rural areas constitutes a serious socioeconomic problem in China and many other developing countries. The aim of this study is to identify the drivers of village abandonment in the mountain areas of Southeast China. Pucheng County was selected as the study case. A conceptual framework for the primary drivers of village abandonment was established to link rural depopulation, farmland abandonment, and house abandonment, which are three integral parts of village abandonment. Results show that the intense rural–urban migration propelled by new urban economic opportunities is the most significant driver of sparse rural population distribution, though this does not usually result in the straightforward abandonment of villages. Instead, the scarcity of public services in mountain villages is a decisive factor in local resettlement and resultant village abandonment. Limited school access and a demand for high‐quality education is the foremost and most immediate motivation for rural–town migration and resettlement in townships, which directly leads to the substantial abandonment of mountain settlements. Additionally, isolation, higher transportation costs, and non‐viability of traditional subsistence agriculture are minor drivers that are interwoven, aggravating the abandonment of remote villages. Our study highlights the aggregated characteristics of village abandonment and heterogeneity of rural migration and its corresponding primary drivers. These findings will have significant policy implications for decision makers by helping to identify areas with a high probability of village abandonment and predict the future magnitude of intra‐county migration and subsequent in situ urbanization.

Distribution Characteristics and Countermeasures of Traffic Accidents in Rural Road

According to the serious current situation of traffic accident in rural road, the data of traffic accidents was analyzed that happened in Pucheng County, Shaanxi Province, Xi'an in 2012 using mathematical and statistical methods. Then put forward some traffic accident characteristics and regularity, such as the distribution of time, distribution of space, traffic accidents form, vehicle’s type and violated law. According to the traffic accident characteristics of distribution, in order to control and reduce traffic accidents, some countermeasures were given from the aspects of engineering, management and education.

Knowledge, Attitude, and Practices Regarding Occupational HIV Exposure and Protection among Health Care Workers in China: Census Survey in a Rural Area.

Health care workers (HCWs) seek, treat, and care for patients living with HIV/AIDS on a daily basis and thus face a significant risk to work-related infections. To assess the knowledge, attitude, and practices regarding occupational HIV exposure and protection among HCWs in low HIV prevalence areas of rural China. A cross-sectional questionnaire survey was carried out among all medical units in Pucheng County, Shaanxi, China. Response rate of this study was 94%. The average overall knowledge score of HCWs was 10.9 of 21.0. Deficiencies in general, transmission, exposure, and protection knowledge were identified among HCWs at all levels. A high rate of occupational exposure (85%) and lack of universal precautions practice behavior were recorded. Significant predictors of universal precautions practice behavior were female sex, prior training, and greater knowledge about HIV/AIDS. Health care workers at various levels have inadequate knowledge on HIV/AIDS and do not practice universal precautions. Nurses and medical technicians at the county level faced more occupation risk than other HCWs. The key of AIDS training for different levels of HCWs should be distinguished.

Barriers for Poor Cataract Surgery Uptake among Patients with Operable Cataract in a Program of Outreach Screening and Low-cost Surgery in Rural China

Aims: To identify the reasons for poor uptake of cataract surgery in a program of outreach screening and low-cost surgery in Pucheng County, a rural area in northwestern China.Methods: Detailed interviews with a semi-structured questionnaire were conducted by telephone or face-to-face for participants who had been advised to attend a low-cost cataract surgery program but did not schedule the surgery within 3 months after the initial screening.Results: Among 432 eligible subjects, 355 (82.2%) were interviewed (mean age 70.6 ± 6.6 years, 73.8% female). A total of 138 subjects (38.9%) were interviewed by phone and 217 (61.1%) were interviewed face-to-face. Lack of family support (n = 106, 29.9%) and failure to understand the need for surgery (n = 96, 27.0%) were the two main reasons for not undergoing cataract surgery. Other factors included fear of surgery (n = 62, 17.5%), lack of faith in doctors (n = 36, 10.1%), financial constraints (n = 25, 7.0%) and lack of transportation (n = 4, 1.1%).Conclusion: The principal barriers to low-cost cataract surgery uptake in rural China included lack of family support and failure to understand the need for surgery. Education targeting entire families to eliminate these barriers and development of community support systems at the family level are required to achieve greater uptake of low-cost cataract surgery programs in rural China.

Implementation of a Free Cataract Surgery Program in Rural China: A Community-Based Randomized Interventional Study

To identify effective methods to increase the number of cataract surgeries in a rural setting in Pucheng County of Shaanxi Province, northwestern China. Community-based randomized interventional study. Four hundred thirty-two patients 50 years of age or older with operable cataract who had not undergone surgery 3 months after participation in a cataract outreach screening program. Three hundred fifty-five (82.2%) patients eligible for surgery, but not scheduling it on their own, were contacted and were assigned randomly into 4 groups. Participants in group 1 (n = 86) were given informative reminders by telephone or in person by a trained facilitator about undergoing low-cost cataract surgery. Group 2 (n = 86) was offered free cataract surgery. Group 3 (n = 90) was offered free surgery and reimbursement of transportation expenses. Group 4 (n = 93) was provided with free rides from home to hospital in addition to the reminder and free surgery. Number of participants undergoing cataract surgery after interventions. In total, 94 patients (26.5%) underwent cataract surgery after interventions. In group 1, 13 patients (14.4%) underwent surgery, which was significantly lower than the number in group 2 (n = 25 [27.8%]; P = 0.027), group 3 (n = 28 [31.1%]; P = 0.012), and group 4 (n = 26 [28%]; P = 0.038). There were no significant differences between groups 2 and 3 (P = 0.768) or between groups 2 and 4 (P = 0.869). Provision of free cataract surgery was twice as effective as giving patients an informative reminder when it came to increasing the uptake of cataract surgery. However, offering reimbursement of transportation expenses or provision of free rides had minimal added impact on the response rate of participants to undergo cataract surgery.

Investigation of children's intelligence quotient and dental fluorosis in drinking water-type of endemic fluorosis area in Pucheng county Shaanxi province before and after drinking water change

Objective To further understand the effect of anti-fluoride water on intellectual development of children and dental fluorosis in drinking water-type of endemic fluorosis area Pucheng county Shaanxi province.Methods Two hundred 8 to 12 years old children were randomly selected in endemic fluorosis area with changed water or unchanged water, in 2009 in Pucheng county Shaanxi province. Intelligence quotient(IQ) of children was measured by Raven's test. Children's dental fluorosis was examined by Dean's classification scheme. Results The rates of child dental fluorosis in changed water and unchanged water endemic fluorosis areas were 28.50%(57/200), 87.88%(203/231) , respectively, the difference was statistically significant(x2 = 159.19, P＜ 0.01),while dental fluorosis indices were 0.57,1.97, was marginal, moderate epidemic. Children with IQ above 90 was accounted for 89.5% (179/200), 91.5% (183/200) in changed water and unchanged water endemic fluorosis area,respectively, the difference was not significant (x2 = 0.46, P ＞ 0.05). Conclusions Changed water may decrease the incidence of child dental fluorosis, but has no obvious effect on children's IQ development in endemic fluorosis area. Key words: Drinking; Fluorosis,dental; Intelligence

Earth-Mound Burials at Guanjiucun, Pucheng County, Fujian Province

Earth-Mound Burials at Guanjiucun, Pucheng County, Fujian Province