Removal Effect of Precipitation on Atmospheric Particulate Matter (PM_(2.5) ) in Bengbu City

Based on the monitoring data of PM_(2.5) concentration in Bengbu Environmental Monitoring Station and precipitation observation data of Bengbu National Meteorological Observation Station from 2016 to 2019, the influence of precipitation on PM_(2.5) mass concentration in Bengbu City was analyzed. The results show that precipitation had a washing and removal effect on PM_(2.5) in the air, and the removal effect was related to precipitation level, precipitation intensity, precipitation duration and PM_(2.5) concentration. The removal effect of precipitation on PM_(2.5) increased with the increase of precipitation level, and the seasonal difference was obvious. Precipitation intensity was positively correlated with the removal effect of PM_(2.5) , but the average removal rate began to decline when precipitation intensity exceeded 10 mm. With the increase of precipitation intensity, the proportion of positive removal showed an overall upward trend, but there was a low-value area as precipitation intensity was 3-10 mm. Precipitation duration was also positively correlated with the removal effect of PM_(2.5) , and there was a low-value area when precipitation duration was 10-15 h. When PM_(2.5) concentration was low before the precipitation process began, the removal effect was not good, and the average removal rate was negative. As PM_(2.5) concentration was high before the precipitation process started, the removal effect was obvious.

Geological and geochemical characteristics of Middle Jurassic granites in Bengbu uplift, Southeast of North China craton

1 Introduction The early formation and evolution of the North China craton has been widely concerned by scientists.The Bengbu uplift belt is located in the southeast of the craton,theresearch degree of the belt is relatively low and received increasing attention from many scholars in recent years.Through the author’s practical work and combined with

Preliminary Study on the Temporal Distribution of PM_( 2.5 ) Pollution and Influence of Meteorological Factors in Bengbu City

Based on the data of six automatic air monitoring stations in Bengbu City,the pollution characteristics and temporal distribution of fine particulate matter PM 2.5 in the air in Bengbu City from 2015 to 2019 were studied,and the correlation between meteorological factors and PM 2.5 concentration was analyzed.The results showed that from 2015 to 2019,PM 2.5 pollution in Bengbu City was relatively heavy in winter and spring and relatively light in summer and autumn,and PM 2.5 concentration had two peaks during the day and night.Precipitation,relative humidity,wind direction and wind speed had certain effects on PM 2.5 concentration in Bengbu City.The research provides reference for the monitoring,early warning and prevention of PM 2.5 pollution in the city.

Current Situations and Countermeasures of Rural Land Consolidation in Bengbu City

On the basis of performance and problems in land consolidation of Bengbu City,it is believed that land consolidation should focus on benefits of agriculture,farmers and countryside,strengthen consolidation of agricultural land and infrastructure construction.

Geochemistry and Geochronology of Intermediate Rocks in the Jiangshan Au Deposit in the Bengbu Uplift, North Anhui Province: Clues to Regional Au Mineralization

The Jiangshan gold deposit is the largest,most recently-discovered gold deposit in the Bengbu Uplift.The ore bodies are located in the structural fracture zone of the Zhuangzili Formation(Ar3),with major Pb-Zn and Au reserves.In this study,LA-ICP-MS zircon U-Pb analyses yielded a crystallization age of 111.5±1.8 Ma for the quartz diorite porphyry in Jiangshan.The quartz diorite porphyry has high Ba and Sr content,with low Y and Yb content,which is similar to the characteristics of adakitic rocks.They are enriched in large ion lithophile elements(LILEs,e.g.,Ba,U)and light rare ear th elements(LREEs),while depleted in high field strength elements(HFSEs,e.g.,Nb,Ti)and heavy rare earth element(HREEs).They have zirconεHf(t)values of-23.52 to-21.14(mean=-22.32).and Hf model ages of 2419.76 to 2569.39 Ma.The magma source area is the lower crust.Magma primarily came from the partial melting of the lower crust,with the addition of some mantle material.The quartz diorite porphyries are characterized by high zircon TTi-in-zircon values(608-757°C),Ce^4+/Ce^3+ratios(71.97-1387.10)and Eu/Eu*ratios(0.46-1.08),indicating high temperature and magmatic oxygen fugacities.High temperatures can provide heat to fluids and highly oxidized magmas can control the behavior and speciation of sulfides,thus controlling the behavior of Au.Finally,the ore-forming fluid is enriched and precipitated in a favorable structural space to form the Jiangshan Au deposit.

Spatio-temporal Distribution Characteristics and Environmental Impact Factors of Lung Cancer Mortality: A Case Study of Yuhui District in Bengbu City, China

Among cancers, lung cancer is the most common cause of death in China. For the prevention and control of lung cancer, it is necessary to investigate the spatial and temporal distribution of lung cancer mortality, as well as the changes in the trend and the affecting mechanism. Based on statistics and auto-correlation analysis, this paper studied the spatial and temporal distribution of lung cancer mortality in Yuhui District, Bengbu, Huaihe River Basin, from 2017 to 2020. In addition, Spearman’s Rank Correlation Assessment Model and Geographic Detector Model were used to examine the relationship between environmental factors and lung cancer mortality to identify impact factors and their mechanisms. The findings indicated that: 1) from the characteristics of temporal distribution, the number of lung cancer deaths exhibited a linear growth tendency, with the highest mortality in winter;2) from the characteristics of spatial distribution, lung cancer mortality showed a strong spatial agglomeration form, concentrating on two clustering areas, located in the old city and the central city of Bengbu, near the Huaihe River;3) from the point of view of the whole research area, there were 15 impact factors with significant correlation in the built and natural environment factors. The significant impacting factors in the built environment included land use, road traffic, spatial form and blue-green space, which could indirectly affect lung cancer mortality, while air pollution and temperature constituted the significant impacting factors in the natural environment;4) the influence of screened environmental factors on lung cancer mortality was different. Spatial stratified heterogeneity assessment, the interaction among environmental factors demonstrated statistical significance, it was found that the interaction between environmental factors in pairs had a significant enhancement effect on lung cancer mortality. To some extent, urban planning and policies could reduce lung cancer mortality.

Characteristics of Ozone Changes and Meteorological Influencing Factors in Bengbu City

Based on the ozone monitoring data from the Bengbu Environmental Monitoring Station and the meteorological observation data from the Bengbu Ground Meteorological Observation Station from 2015 to 2019,the changing trend of ozone concentration and the effects of meteorological conditions on ozone concentration in Bengbu in recent years were analyzed.The results show that from 2015 to 2019,the monthly and daily changing curves of ozone concentration in Bengbu City had double peaks and a single peak respectively.The peak of monthly average ozone concentration appeared from April to June and in September.The peak of daily average ozone concentration occurred around 16:00,while the valley apppeared around 07:00.Among the main meteorological factors affecting ozone concentration,ozone concentration was significantly positively correlated with temperature and sunshine hours and significantly negatively correlated with relative humidity,air pressure,total cloud cover,and wind speed.

Bengbu Bayi Chemicals Group

Bangbu Bayi Chemicals Group is an enterprise assigned by theMinistry of Chemical Industry to produce nitrochlorobenzene seriesproducts. It has strong technical forces, advanced productiontechnology and quality control measures. Products include 20 varieties of chloro-anhydride series andnitrochlorobenzene series. They are widely used in pesticides,medicines, dyestuffs, rubber, daily chemicals, leather andpapermaking. Among these, the para-nitrochlorobenzene and otherthree products rank first in production scale in China, winning thetitles of excellent products from the Ministry of Chemical Industry.Many products sell well in southeast Asia, Europe and the Americas.

The 25th CIMFC(Bengbu 2019):Exploring the future of the man-made fibers

The 25th China International Man-made Fiber Conference (Bengbu 2019)(hereinafter referred to as CIMFC 2019), themed on “Opening and Integaration for Interactive Development — Coordinated Progress of Global Man-Made Fiber Industry”, was convened in Bengbu City, Anhui Province. CIMFC 2019 was sponcored by China National Textile and Apparel Council (CNTAC), organized by China Chemical Fibers Association, Chi-na Textile International Exchange Center, and China BBCA Group Corp., supported by Bengbu Municipal People’s Goverment, and co-organized by Bengbu Investment Promotion and Foreign cooperation Center, Bengbu Municipal Bureau of Commerce and Foreign Affairs, and Oerlikon Man-made Fiber.

皖北民间“非遗”舞蹈的社会生态建构——以安徽蚌埠冯嘴子村花鼓灯传承为例

自宋代以后,聚居在淮河中游的村落,流行一种集灯歌、小戏、群舞、锣鼓于一体的“原生形态”汉民族歌舞——花鼓灯。因其有着世界上最丰富系统的舞蹈语言体系和别具一格的民族民间文化跻身于非遗国家级名录,并作为唯一的汉民族民间舞种被列入国家民族民间文化保护工程。能歌善舞的沿淮人通过多元场域展演并宣示着“咒语多变成颂歌”的传衍历程,对当地社会文化的景观格局产生重要影响,为花鼓灯传承建构了良好的社会生态。蚌埠冯嘴子村花鼓灯传承的案例表明“生存优势”是影响文化遗产生存、竞争与演替的重要考虑因素,是衡量文化生存潜能的重要标志。

SHRIMP zircon U-Pb dating in Jingshan "migmatitic granite", Bengbu and its geological significance

The petrographic characteristics of Jingshan "migmatitic granite" and the occurrence of the magmatic zircons indicate that the granite was formed by normal crystallization of felsic melts. All zircons in the granite have inherited cores and fine-scale oscillatory zoning rims of magmatic origin. It is realized that the granite was formed at 160.2±1.3 Ma through dating magmatic zircons. The generation of the granitic magma could be related to the lithospheric mantle and/or lower crust delamination after the ultrahigh pressure metamorphism (UHPM) in Triassic. Most inherited zircons yield the ages of 217.1±6.6 Ma, which is consistent with the peak UHPM in the Dabie-Sulu orogenic belt. Some of the inherited zircons (433-722 Ma) constitute a discordia line with the upper intercept age of 850+85/-68 Ma and a lower intercept age of 261+100/-140 Ma. These ages imply that the granite could be derived from the partial melting of the crustal materials of the South China Block that was intensively superimposed by the UHPM. The UHPM could be the reason for the major Pb loss at ±220 Ma.

蚌埠市工业区与商业区表土磁学性质的差异及其环境意义

为了研究工业活动对蚌埠市表土磁学性质的影响,在蚌埠市工业区采集33块表土样品,在商业区采集29块表土样品,对2类表土样品的磁学参数和矿物成分进行了测量。结果表明:2类表土样品的磁学性质主要由磁铁矿主导,工业区表土样品中磁性矿物含量较高,磁性矿物粒径粗,SP颗粒含量低,商业区表土样品中磁性矿物含量较低,磁性矿物粒径细,SP颗粒含量高;2类表土样品中主要成分是石英,另外还含有高岭石、伊利石、斜长石、方解石和磁铁矿等矿物。工业区表土由于受到工业粉尘影响,其磁学性质与商业区表土存在差异,具体表现为磁性矿物含量增加、磁性增强,磁性矿物粒径变粗,磁化率与频率磁化率呈弱相关关系,工业区表土磁学参数的变化反映了工业活动对城市表土的影响程度。因此,工业区与商业区表土磁学性质的差异反映了蚌埠市表土环境质量状况。

蚌埠市大庆路快速化改造总体规划方案研究

大庆路是蚌埠市快速路路网规划中的重要一纵,其快速化改造可有效改善和缓解城市片区间的交通压力。文章以大庆路改造工程为研究背景,分析功能定位,根据现状流量和规划情况推算远期交通量预测结果,论证主辅道建设规模。结合现状建设条件及交通需求,合理布置规划设计断面,对主要节点的立交形式进行确定,为类似工程的规划设计提供参考和借鉴。

Petrochemical characteristics of leucogranite and a case study of Bengbu leucogranites

Leucogranites have a relatively narrow variation in SiO2 content (70.5%―75.5%). Giving similar SiO2 content, leucogranites have relatively higher Al2O3 (>13.5%) and lower TFeO + MgO (<2.5%) contents than those of normal granites. These petrochemical characteristics suggest that leucogranites are de-rived from partial melting at relatively low temperature and are not significantly affected by fractional crystallization. In the present study, we propose that the Al2O3 vs SiO2 and TFeO + MgO vs SiO2 dia-grams can be used to distinguish leucogranites from normal granites. In addition, we report the major element compositions of the Jurassic granitic intrusions from Jingshan-Tushan-Mayishan in the Bengbu area, east-central China. Using the Al2O3 vs SiO2 and TFeO + MgO vs SiO2 diagrams and the comparison with the High Himalayan leucogranites in mineralogical and petrochemical characteristics, we suggest that the Jingshan-Tushan-Mayishan intrusions belong to a leucogranite belt. Similar to those of the High Himalayan leucogranites, the Bengbu leucogranites have low Mg# values, indicating that they resulted from low temperature dehydration partial melting of the subducted continental crust of the South China Block at the crustal depth.

综合物探方法在蚌埠隆起金多金属矿勘查中的应用--以怀远双沟勘查区为例

为展现综合物探方法在蚌埠隆起区金多金属矿勘查中的应用效果,更好地指导该区找矿工作,该文以怀远双沟勘查区为例,通过开展面积性高精度重磁测量和综合物探剖面测量,初步建立了近EW向与NE—近NS向叠加的构造格架,并经钻探验证发现了分别受韧脆性断裂和脆性断裂控制的2种类型的金多金属矿化带。在此基础上,总结了勘查区NE—近NS向的磁异常中心和重磁异常梯级带2种金多金属矿成矿有利部位,识别出NE—近NS向磁异常、NE—近NS向重磁异常梯级带、重力异常梯级带背景下的局部重力高、CSAMT剖面上的视电阻率等值线梯级带或明显的错断带等特征,作为区内金多金属矿的综合地球物理找矿标志。

从核心到边缘的逆向演替:以安徽蚌埠的城市变迁为例

在核心–边缘理论的框架下,基于“极化”与“扩散”的研究视角,以蚌埠为例,对其从省域核心城市到边缘城市的变迁进程、阶段特征及内在机制进行系统研究。研究结果显示:①交通、工业、创新3个维度核心地位的建立是蚌埠“核心”崛起的动力来源与表征,遵循了“核心”形成的理论路径;②城市的边缘化主要表现为战略、交通地位下降以及工业、创新维度的“核心”竞争力下滑;③“核心”的边缘化以及“边缘”锁定的动因源于政策的倾斜与市场经济自发的不均衡性,其中政策力量起主导作用;同时边缘化与城市收缩的不断累积形成负向反馈,削弱了“核心”的扩散效应;④创新提出“核心”逆向演替的本土化理论解释,即政策力量成为核心–边缘结构的主导机制,能够强化“核心”的极化作用并引导“核心”发挥扩散效应,但市场机制对于扩散效应的具体实施结果具有决定性作用。

采砂对淮河蚌埠段河势稳定与防洪安全影响分析

河道无序采砂导致淮河蚌埠段河床发生剧烈变化,为了分析采砂对该段河势稳定和河道防洪安全的影响,开展了蚌埠段河道采砂影响研究。基于河道水沙特性、河床演变规律,通过现场观测、理论分析和数值计算等方法,从堤防滩地、水文测站、水利工程、桥梁管线等方面对河道采砂影响进行了评估,并提出了淮河蚌埠段河道安全保护范围。结果表明:①淮河干流蚌埠闸至沫河口段2008年以前自然演变缓慢,河床较为稳定,而2008年以后无序采砂造成了河床剧烈变化,且长时间内难以自然修复;②采砂坑具有数量多、深度大、边坡陡且极不稳定等特性,易导致断面滑动、河道不平整影响水文测验,危害防洪安全以及其他涉河设施安全和管理;③根据河道管理要求,淮河干流蚌埠闸至沫河口段河道两堤范围内,需要进行保护的区域面积占总面积的95%以上,即淮河蚌埠段河道已无可采砂区域,需将其划定为禁止采砂区。研究成果可为淮河采砂规划、河道保护管理和工程治理提供参考。

利用大地电磁密集阵列研究蚌埠地震构造环境

本文基于蚌埠及邻区100个高质量测点组成的宽频带大地电磁密集阵列数据,首先利用相位张量和阻抗张量统计成像技术定性分析了研究区构造维性和电性结构特征,然后采用多重网格法结合多次迭代重构的三维反演技术获得了其精细可靠的三维电阻率结构.结果显示蚌埠隆起南、北部电性结构存在显著差异,支持其南部和北部存在不同的构造演化和变形机制的观点.蚌埠隆起内部存在多个切割高阻异常体、与断裂带对应的低阻条带,其中下地壳存在高导异常.综合分析推断,该中下地壳高导异常为流体渗入到先存多条交切断层的破碎带所致,深部物质对蚌埠隆起区构造变形的作用不显著.本文研究认为蚌埠及其邻近地区具备强震孕育的深部结构环境,但该区域构造变形驱动机制有待探讨.

安徽省蚌埠市农业现代化发展促进农产品贸易路径分析

2022年党的二十大工作报告提出强化现代农业科技和物质装备支撑,构建现代乡村产业体系,推进现代农业经营体系建设。乡村振兴背景下,本文运用因子分析法,建立因子载荷矩阵对蚌埠市农业现代化发展进行水平测度分析,并提出数字化场景赋能、现代化科技助力、发展种养结合循环农业经济模式、多业态融合发展打造美丽乡村、加强长三角区域周边及全球经济自由贸易合作等系列对策,旨在促进蚌埠市农业现代化发展迈上新台阶并推动市域地方特色农产品商品贸易流通。

蚌埠市农业高质量发展策略研究

农业高质量发展是推动农业农村现代化建设的必由之路。结合2016—2020年蚌埠市农业发展相关数据,构建蚌埠市农业高质量发展评价体系并通过熵值法进行测算农业高质量发展水平。结果表明,蚌埠市农业高质量发展呈现波浪式上升趋势,其中农业经济发展水平相对较高,农业绿色发展水平和农业科技创新水平稍弱,农村社会发展水平最低。因此,蚌埠市应加大农业科技创新及人才建设;以绿色化引领农业走可持续发展道路;改善农村社会发展水平,提高农村居民收入。