Coupling coordination analysis of Mazu culture,socio-economy and ecological environment of Meizhou Island

Taking the pilgrimage,tourism and cultural island of Meizhou Island as an example,the evaluation index system of the coupling and coordinated development of“Mazu culture,socio-economy,eco-environment”(MSE)compound system was constructed.The index weights were determined by AHP-entropy method,and the coupling degree,coordinated degree,comprehensive evaluation index and grey correlation degree of MSE system of Mazu Island from 2012 to 2022 were measure.The results showed that:(1)the comprehensive evaluation indexes of the three subsystems was on the rise in general,but the evaluation index of the ecological subsystems increased relatively slowly.(2)The coupling degree was only in the running-in stage in 2012,and the other years were in the coordinated coupling stage.(3)The coupling coordination degree increased from 0.35 in 2012 to 0.82 in 2022,the coupling coordination level was changed from mild imbalance to good coordination.(4)Through the comparison of grey correlation degree,the 24 indexes in the evaluation index system had great influence on the coupling coordination degree of MSE system.The coupling coordination degree was closely related to the development of socio-economy and the spread of Mazu culture.With the rapid development of tourism brought about by the spread of Mazu culture,the pressure on the ecological environment will be increasing.Compared with the rapid growth of tourism and economy,it is equally important to strengthen environmental protection and pay attention to the quality of ecological environment development.

Plant Community Diversity in Dongtian Forest Park,Meizhou City,South China

Dongtian Park is a forest park in Dongtian Lake Ecological Tourism Resort in Meizhou City,South China.Through investigation and analysis of sample methods of the forest community structure and plant diversity in this park,the results showed that there were 181 plant species,belonging to 138 genera in 76 families,including 48 trees,60 shrubs,36 herbs and 37 lianas.The flora is a subtropical evergreen broad-leaved forest with some distinct tropical properties,and evergreen trees accounted for 48.62%of total plant species.The dominant species in the tree layer were Schima superba,Pinus massoniana,Cinnamomum parthenoxylon,etc.,and those in the shrub layer were Bambusa textilis,Aidia cochinchinensis,Rhaphiolepis indica,etc.,and in herb layer were Carex baccans,Adiantum flabellulatum,Cibotium barometz,etc.,and the lianas mainly included Smilax hypoglauca,Callerya dielsiana,Trachelospermum jasminoides,etc.There were few adults of dominant species in the tree layer,S.superba and P.massoniana also lacked seedlings,they would still maintain their dominant position for a quite long period,but Cyclobalanopsis neglecta had sufficient seedling reserves and would be most likely to become a dominant species in future.The community had relatively rich species,many ferns and lianas and complex hierarchy.The evenness,Shannon-Wiener diversity,Pielou uniformity and Simpson index were higher in the shrub layer than in the tree and herb layer,and the Simpson index was the lowest(0.9280)in the herb layer and Shannon-Wiener diversity index was the highest(7.5853)in the liana layer.

Study on the Urbanization-based Restructuring of Urban Spaces in Meizhou City of China

By introducing the urbanization history of Meizhou City,major problems of its spatial structure were summarized as small scale of urban areas and incomplete hierarchical structure;poor cohesive force of central city,imbalanced regional spatial ratio;disorderly development of urban spaces;and fierce competition for space.Then spatial restructuring of Meizhou City was discussed from the following 3 perspectives:optimizing hierarchical structure of space,planning in advance to construct a central city with more than 1 million residents;establishing the traffic hub of Guangdong,Fujian and Jiangxi;improving spatial structure of industries.It was to enhance sustainable social and economic development of the local area,break the dualistic structure and realize the overall development of urban and rural areas,and also narrow the urban-rural gap.

Preliminary Evaluation on Urban Forest Ecosystem Services Function in Meizhou City

In order to better explore the function of urban forest in human habitation and settlement environment,the ecosystem functions were evaluated in terms of air purification,water conservation,soil conservation,maintenance of biodiversity in Meizhou by the methods of market price,shadow prices approach and opportunity cost,and the problems of the value assessment at home and abroad in urban forest ecosystem services function were simply discussed.

Distribution features of oil and preventive countermeasures in Meizhou Bay,China

The content and distributive feature of oil in Meizhou Bay, China during summer were analysed on the basis of water quality survey. The result showed that oil concentration ranges between 5—51 μg/dm 3 with an average of 19 8 μg/dm 3. The mixed coefficient is lower. The difference of oil distribution between high tide and low tide is related to the distribution of land pollution and is mainly decided by water dynamics. Average turn over rate and enrichment coefficient can provide fundamental information to estimate oil concentration in sea water.

Biotic communities of the marine ecosystem in Meizhou Bay

The current situation of biotic communities in Meizhou Bay is presented in this paper.The species composition,seasonal variation,and distribution of phytoplankton,zooplankton, red tide organisms,fishes,and benthos in Meizhou Bay were investigated,and the content of chlorophyll a and primary production and their seasonal variation were also determined.The water quality of Meizhou Bay was monitored by measuring the density of Escherichia coli. Results reveal that there is a great variety of species in Meizhou Bay and the water in Meizhou Bay is oligotrophic.But the individual numbers of various organisms are very low, especially those of algae.Moreover,there are more than 40 species of red tide organisms and there exist opportunities of red tides between May and November.All these demand cautious be taken in the future development of this area although it has great environment capacity.

The Present Situation of Occurrence, Control and Prevention of Citrus Huanglongbing in Meizhou City, South China

Meizhou is the main citrus fruit producing area in China, and its pomelo planting area and output value rank second in China. In this paper, the present situation of prevention and control of citrus HLB(Huanglongbing) in this city in recent years is introduced, some successful experiences are mentioned, some shortcomings are also analyzed, and combined with the problems existing in the current process of prevention and control of citrus HLB, this paper puts forward some measures, such as timely removal of the diseased individuals, control of planthoppers, establishment of the HLB demonstration site of comprehensive prevention and control and large aseptic seedling breeding base, active introduction of HLB pathogen inspection and quarantine equipment, strengthening supervision and inspection, comprehensive control and other measures, in order to provide scientific basis for the prevention and control of the disease in Meizhou.

HEAVY METAL CONCENTRATION AND ITS EVALUATION IN THE ORGANISMS FROM MEIZHOU BAY

The present paper reports Zn,Cu,Pb,Cd,Ni,Fe,Mn and Co contents in the tissues of oyster,solen,red-tail prawn,sea eel and kelp,taken from Meizhou Bay(and analysed by flame atomicabsorption spectrophotometry after wet digestion)in June 1992,and also the concentration factors esti-mated from the mean metal concentrations in the organisms and water there.Heavy metal concentrationsin every species of the organisms followed the pattern:Fe,Mn,Cu,Zn】Pb,Cd,Ni,Co and in variousorganisms showed considerable variation.In general,levels of most of these metals were in the order:softtissues of the bivalves】the kelp】muscles of the red-tail prawn,the sea eel.The greatest concentrationof most metals was found in the gill or viscera of the sea eel,whereas the muscle tissues,in general,con-tained only low concentrations of them.The Cu,Zn concentration factors of the oyster were higher by1—2 orders of magnitude than that of the other organisms.The observed heavy metal levels were closeto those reported from various

Thoughts on the Development Planning of Pomelo Industry in Meizhou City

Pomelo industry is one of the mainstay industries with most unique regional characteristics in Meizhou City,South China. This paper analyzed the status,development advantages and problems of pomelo industry and discussed on brand-based industry transformation and updating in order to provide references for expanding and strengthening pomelo industry. Meizhou City is the second largest prefecture-level city of pomelo production in China,where the cultivating area is up to 40 000 ha and the yield is over 900 000 t. With the expansion of industry scale,there were bottlenecks of pomelo industry in Meizhou City including industrial restructuring and upgrading. The paper analyzed the development status and existing problems of pomelo industry based on investigation and survey. Some corresponding strategies were also proposed for pomelo industry in Meizhou City.

Characteristics of Cloud-to-ground Lightning during a Local Rainstorm in Meizhou City

Based on cloud-to-ground lightning data of lightning location system,Doppler radar data,and precipitation data of regional automatic weather stations,the characteristics of cloud-to-ground lightning during a local rainstorm on June 4,2016 in Meizhou City were analyzed. The results showed that the spatial distribution of cloud-to-ground lightning from 14： 00 to 20： 00 on June 4,2016 in Meizhou City had obvious local characteristics,and the proportion of negative lightning was larger than that of positive lightning（ only 16. 8%）. The concentration period of positive lightning coincided with that of cloud-to-ground lightning. The peak of proportion of positive lightning lagged behind the peak of cloud-to-ground lightning,and appeared in the late period of thunderstorm disappearance. The dense area of cloud-to-ground lightning and the area with heavy rainfall coincided with the area with strong radar echoes. Doppler weather radar data had the feature of the headwind zone,strong combined reflectivity,vertical height of strong echoes,high echo top,and fast radial movement. The peak of cloud-to-ground lightning appeared one hour earlier than that of precipitation. There was no significant correlation between the frequency of cloud-to-ground lightning and precipitation. The peak of negative lightning corresponded to that of positive lightning,and cloud-to-ground lightning ended earlier than rainfall. After the peak of precipitation,convective system rapidly weakened and disappeared. Precipitation and the frequency of cloud-to-ground lightning fluctuated frequently during the whole process. The jumps and peaks of negative lightning were indicative of rainfall changes.

Reconstruction and Extension Project of Jianying Park in Meizhou

Founded in 1986, Jianying Park represents a momentous comprehensive park in Meizhou. Recent years have witnessed the rehabilitation and expansion grounded of that park on its original appearance. This paper, on the basis of analyzing and discussing the existing problems of the original park, combines the principles and requirements of urban park landscape design and adds the concept of ecological waters design, so as to integrate the cultural characteristics of Meizhou into Jianying Park. The project adopts user-friendly design in an effort to create a unique scenic spot and all kinds of markers standing for Marshal Ye Jianying.

AHP Model-Based Risk Assessment of Lightning in Meizhou

Based on the cloud-to-ground（ CG） lightning flashes data and other related data from 1999 to 2016,the lightning risk zoning of Meizhou was conducted by using the analytic hierarchy process（ AHP） model. The model considered the natural conditions,social economic conditions and other factors,and the main assessment factors were selected,containing ＂ flash density,lightning current intensity,annual thunderstorm days,lightning disaster frequency,construction area per capita and GDP per capita＂,in order to establish the evaluation model,and divide the level of risk. The results showed that the lightning risk in Meizhou area roughly had the trend of ＂ center higher than all-around,the south higher than the north,the west higher than the east＂. High-risk area was in the most region of Meijiang District and central region of Meixian District,and Wuhua County was next high-risk area. Xingning City and Fengshun County were medium risk areas,most of the other were low risk area. The result of regionalization was consistent with the actual situation,and the evaluation method was scientific and effective. Through the analysis of the lightning risk zoning,this paper could provide a scientific basis for the lightning protection and disaster reduction in the region in the future.

清末以来归侨与侨乡梅州的发展

清末以来,梅州华侨对侨乡梅州的发展起着非常重要的作用。自清政府开放海禁,梅州归乡的华侨越来越多,包括知识分子、侨商、华工、难侨等,他们在回乡之后,利用自身的知识、资金、技术等,身体力行地引领和推动侨乡的经济建设、文化进步与社会发展。在实现中华民族伟大复兴中国梦的新征程上,激发梅州归侨在新时代积极投身推动侨乡的高质量发展大局,对侨乡梅州探寻未来发展有积极意义。

梅州市数字普惠金融发展研究

近年来,伴随着信息技术的迅猛发展,数字普惠金融作为信息技术在金融领域深化应用的产物,也受到越来越多学者的关注和研究。基于北京大学数字金融研究中心公布的“数字普惠金融”指数,对广东省梅州市数字普惠金融指数进行横向与纵向比较分析,探究梅州市数字普惠金融发展的现状,针对性地总结出存在的相关问题,并立足于梅州市数字普惠金融发展的实际情况,为促进梅州市数字普惠金融发展提出针对性建议。

基于PLUS和InVEST模型的梅州市土地利用与生境质量时空变化及多情景模拟

模拟和分析生境质量的时空变化规律能够给重点生态功能区的生态保护和土地资源可以持续利用提供依据。基于2000—2020年梅州市土地利用数据,用InVEST模型、Morans’I指数、PLUS模型研究梅州市生境质量时空演变特征,并预测2030年、2040年、2050年自然发展、耕地保护、城镇发展、生态保护情景的生境质量。结果表明:(1)2000—2020年梅州市林地面积占比第一,建设用地逐年增加,草地面积逐年下降,林地面积先增加后下降。(2)梅州市生境质量为中等水平且两极分化趋势明显,高和较高生境质量总面积与较低和低总面积占比均约为43%。(3)2020—2050年,所有4种发展情景中高生境质量面积占比均呈现下降趋势,但在生态保护情景下,其减少幅度最小且生境质量指数得以维持稳定,表明生态保护是梅州市实现可持续发展的最优选。

成德眉资经济圈轨道交通一体化发展对策研究

经济圈是都市圈发展进程中寻求更高标准、更高质量的城市形态,不仅能够更好地优化城市资源配置,还能够提升城市整体竞争力,促进经济的持续健康发展。成德眉资经济圈轨道交通一体化建设,不断促进多层次轨道交通初步成网,轨道交通半小时通勤圈和“两环三射”框架初步形成。通过阐释成德眉资经济圈轨道交通发展现状,从线网布局、运营管理、协同机制等方面,分析成德眉资经济圈轨道交通一体化发展存在的问题,提出完善轨道交通线网布局、加强运营管理一体化、强化组织协同管理等对策,以推动成德眉资经济圈协同发展。

梅州短时强降水时空分布特征及地形影响

利用2010-2020年梅州市113个自动气象站的逐小时降水资料,运用统计学和空间插值方法,对梅州市短时强降水时空分布特征及地形影响进行分析。结果表明:短时强降水年均频次整体无明显增多或者减少趋势,存在3年左右短周期波动,空间分布为南北大中间小。短时强降水主要发生在4-9月,呈5、8月双峰分布;前汛期主要分布在平远蕉岭、后汛期分布在丰顺,分别主要由西南季风和热带天气系统影响。短时强降水高发时段为下午到傍晚,但极端雨强出现时间比高发时段推迟2 h左右;前汛期北部存在一定的夜雨特征。梅州短时强降水高发区主要分布于迎风坡喇叭口地形处,低值区分布于山脉背风坡的平原低地、盆地处。

Computational investigation on hydrodynamic and sediment transport responses influenced by reclamation projects in the Meizhou Bay,China

Reclamation projects are the main method of coastal exploitation,and the hydrodynamic environmental effect,together with the sediment transport response of the reclamation project,is important to the project’s site selection and environmental protection.Herein,a 3D numerical model based on the finite volume community ocean model(FVCOM)is applied to simulate the changes in the Meizhou Bay’s hydrodynamic environment and sediment transport after a reclamation project.The reclamation project greatly alters the shape of the shoreline and narrows the bay,leading to a significant change in its hydrodynamic environment and sediment transport.After the project,the clockwise coastal residual current in the corner above the Meizhou Island gradually disappears.An obvious counter-clockwise coastal residual current emerges around the rectangular corner.The tidal prism decreases by 0.65×10^9 and 0.44×10^9 m^3 in the spring and neap tides,respectively.The residence time presents a major increase.These changes lead to the weakening of the water exchange capacity and the reduction of the self-purification capacity of the bay.Currents in the tidal channel weaken,whilst currents in the horizontal channel strengthen.The strength and scope of particle trajectories around the horizontal channel and the Meizhou Island enhance.The suspended sediment concentration(SSC)increases in the majority of the Meizhou Bay but decreases in the lateral bay.The eastern corner of Z2 shows a tendency to erode.The western region of the Meizhou Island,the upper portion of the rectangular corner and the western corner of Z4 show a tendency to deposit.The reclamation project increases the maximum storm surges by 0.06 m and decreases the maximum significant wave heights by 0.09 m.

布惊在广东梅州客家民俗中的应用价值述评

布惊是广东梅州客家地区的一种独特的野生灌木资源,也是当地民间特色的药用、食用资源,有极为重要的民俗价值。鉴于此,对布惊在广东梅州客家民俗中的应用方式、化学成分和药理活性等方面进行综述,并对其应用价值和推广前景进行分析,以期为该灌木的进一步开发利用提供参考。