Spatial Variations of b-Values in the Coastal Area of Guangdong

We used earthquake catalogs recorded by Guangdong Seismological Network from 2008 to 2014 to resolve the spatial variations of b-values in the coastal area of Guangdong, particularly in three key research areas(Yangjiang, Heyuan, and offshore Nanao Island) with strong seismicity. Our results revealed that b-values exhibited significant spatial variations, and zones with low b-values could indicate the most likely seismogenic area of large earthquakes. We observed three clear low b-value patches in the offshore Nanao Island. We found a distinct high b-value peak at the depth of 11 km and two minimum peaks at about 14 and 7–8 km in the Yangjiang area. The overall b-values generally decrease with depth in the Heyuan area. The spatial variations of b-values reflect tectonic anomalies; that is, the ‘low-high-low' distribution of b-values in the offshore Nanao Island and the Yangjiang area may indicate the anomaly of the crustal structure with a weak layer. The b-values of reservoir-induced seismicity are obviously lower than that induced by tectonism. This finding indicates that the reservoir area is generally at high stress state under the condition of high pore pressure. We inferred that large earthquakes might be prone to occur at 10–12 km depth in the offshore Nanao Island, at 12–15 km depth in the Yangjiang area, and at the lower part of the seismic activity zone in the Heyuan area. Moreover, the upstream area of the Xinfengjiang reservoir is the most likely area of future large earthquakes in the Heyuan area.

Study on the Development of Under-forest Economy in Guangdong Mountain Areas

From the origin and connotation of the under-forest economy,this paper analyzed plight of the development of under-forest economy in Guangdong mountain areas. It discussed benefits of under-forest economy,favorable conditions and development path of under-forest economy in Guangdong mountain areas. Results indicate that developing under-forest economy is an essential path for realizing green growth and coordinated development of Guangdong mountain areas. However,due to terrain,market,management and technology reasons,the under-forest economy is still not fully developed in Guangdong mountain areas. The development path of under-forest economy suitable for Guangdong mountain areas should be based on ecological protection and oriented towards maximizing ecological,economic and social benefits. Guangdong mountain areas have in-born natural and resource advantages,economic pull of development mode and market demand change,and favorable condition of policy encouragement for development of under-forest economy. Finally,it came up with recommendations for development of under-forest economy in Guangdong mountain areas from development mode,industrial distribution and development direction.

Kaolin Deposits of Weathering-Residual in the Coastal Area of Guangdong Province

Kaolin deposits of weathering-residual type make up a large proportion in different types of kaolin depos-its and are widely used in ceramics, electron ceramics, rubber and paper industries. This paper discusses sys-tematically this type of kaolin deposit with respect to their features of occurrence, mineralogical and chemicalcomposition and transformation of minerals during supergene processes, thus providing some basic data forthe rational exploitation and utilization of the kaolin resources.

Transport Accessibility and Spatial Connections of Cities in the Guangdong-Hong Kong-Macao Greater Bay Area

Based on geographic information system(GIS) spatial analysis technology, the spatial pattern of raster grid transport accessibility for the Guangdong-Hong Kong-Macao Greater Bay area was studied and the states of spatial connectedness were simulated using highway passenger transport, railway passenger transport, port passenger transport and aviation passenger transport data. The result shows that transport accessibility within the Guangdong-Hong Kong-Macao Greater Bay area costs ‘one hour’ and the spatial distribution of accessibility in the area presents clear ‘core-periphery’ spatial characteristics, with Guangzhou, Foshan, Shenzhen constituting the core. The transport accessibility of Guangdong-Hong Kong-Macao is high. Average accessibility of urban nodes as measured by travel time is 0.99 h, and the areas accessible within 1.42 h occupy 79.14% of the total area. Most of the areas with the lowest accessibility are found in the peripheral area, with the worst accessibility being 4.73 h. Compared with the west-side cities, the economically developed east-side cities of the Guangdong-Hong Kong-Macao Greater Bay area have higher connectivity with roads, railways, ports, and aviation transport. Guangzhou, Foshan, Zhuhai, Shenzhen, Hong Kong and Macao are closely linked. The higher the accessibility, the closer the intercity connectedness.

Zoning Approach of Key Construction Areas of High Standard Capital Farmland in Guangdong Province

On the basis of actual situations of Guangdong Province, using Factor Analysis Approach and Quantitative Analysis Method, we built index system by four factors, namely, extent of farmland connectivity, local financial support, grain production capacity and farmland consolidation potential. Finally, we obtained that the areas with total scores of evaluation higher than 50 points are key construction areas of high-standard capital farmland in Guangdong Province. In total, there are 40 key construction areas, including 16 in plain areas of the Pearl River Delta, 9 in coastal regions of east of Guangdong, 10 in coastal regions of west of Guangdong, and 5 in northwest mountainous regions of Guangdong. Besides, we put forward construction direction of these 4 capital farmland areas.

Characteristics of Focal Mechanism in Guangdong and Its Adjacent Areas

The focal mechanisms of 32 earthquakes with magnitude of M_S≥3.0, which were recorded by the Guangdong Digital Seismographic Network, are calculated by using P-wave polarity and amplitude ratio data, and those of 83 earthquakes of Guangdong and its adjacent areas derived by previous researchers are sorted out. On the basis of this, the characteristics of focal mechanism in Guangdong and its adjacent areas are summarized. Meanwhile the focal mechanisms of three earthquake areas, i.e., Yangjiang, Xinfengjiang and Nanao, are discussed respectively. Results show clear regional feature in the function and nature of the stress, and earthquakes are mostly of strike-slip associated with dip-slip component. Earthquakes in the Xinfengjiang Reservoir area are all reservoir-induced ones, so they are only of strike-slip and normal faulting types. In the Yangjiang area, some thrust earthquakes occurred. The dominant orientation of principal compressive stress axis changes from NS in Hainan, Gaungxi to NWW in Guangdong and finally near EW in the coastal areas of Guangdong and Fujian Provinces.

URBAN TOURISM RESEARCH METHODOLOGY——A Case Study of Guangdong-Hong Kong-Macao Area

This paper tries to apply a new and more comprehensive method to urban tourism research in an expanded field instead of only partially, unilaterally and separately focusing on the city itself. Taking the urban tourism of Guangdong, Hong Kong and Macao as an example, it aims at presenting a new spatial system of urban tourism research and pointing out the new orientation of urban tourism research in combination of macro level and micro level, from description to explanation. The meanings of the spatial framework construction for urban tourism study are to make clear how urban tourism studies vary with the changes of dimensions of time and space. This is a meaningful discussion because it will bring great changes to the using of literatures, the opening of research perspectives on urban tourism and the upgrading of theories, so as to create a new stage for urban tourism study.

Development of International Education Industry in the Guangdong-Hong Kong-Macao Greater Bay Area

Building the Greater Bay Area city cluster is a crucial national development strategy for China.As a vital hub of the Belt and Road Initiative,the Greater Bay Area cannot cultivate into an“international first-class bay area and world-class city cluster”without technological innovation and rapid economic progress,and technological innovation and economic development cannot be attained without the training of high-end talents through international education.Thus,the development of an international education demonstration zone is essential in the formation and development of the Greater Bay Area and making it a highland for education and talent,as well as giving full play to the social function of education.As the core of the accumulation of educational resources in Guangdong,Hong Kong,and Macao,the current situation,future opportunities,and development path of international education development in the Greater Bay Area while building a world-class international education center have become the starting point of this study.

从场空间到流网络:粤港澳大湾区城市群空间结构特征及优化路径研究

检视粤港澳大湾区城市群空间结构演化趋势,对纵深推动大湾区高质量发展意义重大。本研究因应数字经济对区域要素流动结构的影响,提出粤港澳大湾区“流网络”分析框架,并以首位度和齐普夫法则测度传统空间结构特征,以上市企业的“总部—分支”机构分布测度流网络特征。结果表明:大湾区总体经历了先集聚再分散的发展过程;各城市人口分布梯度不合理,核心城市的人口扩张推动了城市群的定型。大湾区经济规模结构呈现帕累托分布模式,各城市经济规模变差较大。从城际联系来看,广州深圳之间具有高联通度,形成了联通走廊,2000年以来深圳的相对联通度高居首位,区域网络日渐完善。未来,应织密高效的综合交通网络,加速市场一体化进程、构建“双核三圈”网络型城市群体系、设立“广深接合片区”并加快打造“广深联动走廊”,开创大湾区高质量协同发展新格局。

海洋城市战略与空间规划前瞻

党的十八大报告明确提出“建设海洋强国”的战略目标,要求提高海洋资源开发能力,发展海洋经济,保护海洋生态环境,坚决维护国家海洋权益。2023年10月13日,王世福教授作为国家社科基金重大研究专项首席专家以“建设海洋强国的战略支点与制度创新”为主题组织第十二届“设计城市”圆桌研讨会,并邀请来自规划、海洋、国际关系等多个领域的专家,共同探讨海洋城市在海洋命运共同体中的战略支点作用以及空间规划创新需要。在凝练与会嘉宾观点的基础上,进一步以笔谈形式邀请相关领域专家围绕“海洋城市战略与空间规划”进行论述,期望为未来海洋城市规划与建设提供有益参考。王世福认为对于我国海洋城市建设而言,立足港城关系的规划和注重海陆统筹的战略,有助于在全局视角上认识和响应从港口大国到海洋强国的战略跃升。王兴平等提出建设海洋城市组群是内陆城市经略海洋的重要方式,港口城市与腹地陆域中心城市可通过交通设施网络、多种“流要素”、区域涉海功能与跨界协同治理四个维度的一体化措施构建联系密切且分工合理的海洋功能圈。马向明认为海洋城市战略不应仅局限于海洋资源的开发利用,更应从促进海陆文明交流融合的视角出发,积极应对海洋生态挑战,大力发展文化交流和综合创新功能。海洋城市空间规划应强调陆海功能协调性,从而保证海洋城市健康发展。陈天结合海洋城市所面临的可持续发展问题,从海岸生态系统保护的统筹与修复、沿海城市防灾韧性体系构建和基于气候适应性的沿海城市品质提升三方面,提出沿海高密度城市防灾韧性建设与空间品质提升实施路径。王建军系统论述目前海洋城市战略推进过程中存在的痛点和堵点,并从四个层次梳理当前海洋城市战略核心要解决的问题,即开展陆海资源全要素综合调查与评价、构建陆海统筹的海洋城市发展格局、做好向海而强的资源要素保障以及在更广阔的深远海深度参与全球海洋治理。文超祥等以海洋中心城市作为海洋强国的战略支点,提出科学谋划境内外海洋中心城市的战略布局,并结合我国沿海各省市开展的海岸带空间规划实践总结出:处理好陆域与海域关系、协调好城市与区域发展关系、谋划好陆海发展的战略空间。郑斌认为粤港澳大湾区建设世界级新港城对推动大湾区海洋城市发展具有积极意义,并提出在设施建设、制度建设和推动港口与产业融合发展三方面推进大湾区新港城建设,实现海洋城市的国际化和全球化发展。赵渺希认为随着全球经济的区域化趋势日渐发展,应把握全球供应链、价值链的近岸化趋势,拓展新发展格局下沿海地区高水平对外开放的规划原理,并进一步围绕粤港澳大湾区建设,提出厘清大湾区的全球网络链接机制、解析大湾区区域网络协同机制、大湾区双循环网络发展的规划响应。程遥认为陆海统筹规划是一个全域全要素统筹的系统问题,且最终将落实到陆域的功能与设施规划建设上。陆海统筹导向的国土空间规划在陆海域、邻域、海岸带三个层面对应的规划层次、内容、深度应该是差异化的,并且海域应建立相较陆域更系统的跨界规划管控体系和更严格的传导体系。邓昭华提出中国特色海洋强国的建设,可施行“以陆促港”策略,从“港产联动”以固港、“两丝枢纽”以稳港、集聚资源以强港三方面拓展港口腹地纵深,助力港口实现其陆域的现代化,并通过技术输出助力当地工业化与扩大港群布局稳固其腹地根基。郭海认为我国应提出符合自身国情的海洋理论,以海洋作为中国维护国际社会和平稳定的重要手段,以海港作为中国发展海洋战略的重要抓手,并提出需处理好贸易与军事、国家利益与系统利益、外交功能与经贸功能之间的三对矛盾。刘铮认为海洋城市相关规划具有明显的创新型规划特征,提出应进一步开展海洋城市规划创新并实现对创新目标的制度安排,且需从连通性、支撑性、撬动性三方面思考规划创新的突破点,激活海洋城市战略支点作用。

粤港澳大湾区建设数字湾区中的标准化路径与对策研究

粤港澳大湾区在数字经济时代面临重大机遇,数字湾区建设加快推进。标准化在粤港澳大湾区建设数字湾区过程中发挥着至关重要的作用。本文全面梳理数字湾区建设中标准化工作政策环境及粤港澳大湾区标准化工作基础,分析数字湾区建设对标准化的新任务新要求,结合标准化基本原理,提出数字湾区标准化工作总体思路、推进路径、任务框架,并从工作统筹、平台作用和试点示范等方面提出针对性对策建议,以标准化助力粤港澳大湾区实现数字化、一体化发展。

粤港澳大湾区复合灾害系统敏感性评估

[目的]识别灾害的敏感性是防灾减灾的重要前提,复合灾害系统敏感性评估是复合灾害系统风险评估的重要组成部分。[方法]首先根据暴雨—滑坡灾害链特征构建复合灾害系统敏感性评估指标体系,进而采用卷积神经网络(CNN)和参数最优地理探测器—层次分析法耦合模型(OPGD-AHP)对粤港澳大湾区的暴雨—滑坡灾害链敏感性进行评估。通过对暴雨和滑坡单灾种的敏感性分析,分别得到粤港澳大湾区暴雨和滑坡的敏感性分级图,并由统计分析得出暴雨诱发滑坡的阈值及其转换概率,以此对暴雨-滑坡灾害链敏感性进行分析,最终得到粤港澳大湾区暴雨—滑坡灾害链敏感性分级图。[结果](1)粤港澳地区暴雨-滑坡灾害链高敏感区域主要分布在广宁县、怀集县等西北部地区和惠阳区、惠东县等东部地区;(2)次高敏感性和中敏感性区域主要分布在封开、德庆、从化、龙门、博罗等区域;(3)低敏感区和次低敏感区主要分布在南海、荔湾、禅城、顺德、南沙、番禺、三水、白云等中部地区。[结论]研究结果可为粤港澳大湾区的防灾减灾、增强灾害链风险抵抗力和恢复力提供科学依据和技术支持。

粤港澳大湾区城市群生态系统智能化管理

开展生态系统数字化、信息化、智能化管理,全面提升粤港澳大湾区生态环境质量,是建设国际一流湾区的必然趋势。以城市群生态系统智能化管理为目标,系统整合各类生态环境相关数据资源,形成生态系统管理数据和决策支撑体系,并以此为基础构建生态智能管理平台。研究以生态系统要素和功能管理逻辑为核心,构建了生态系统管理业务流程:(1)精准剖析生态环境问题,确定问题发生的尺度、范围并对其进行分类和定性;(2)确立生态管理目标,制定适宜的管理策略;(3)根据现状与基线进行生态系统服务权衡,通过生态管理恢复工程提升生态系统质量;(4)通过环境物联网监测生态系统变化,及时调整和改进生态系统管理计划。针对城市群生态系统多尺度、多层次、复杂化等特点,在制定管理决策时应充分权衡管理目标和生态服务,兼顾各类生态系统服务效益;需通过示范性生态工程印证管理方案的可行性、适用性和协同性;以趋善化理念为指导思想,不断优化调整生态管理目标;同时在管理活动实施的过程中不断积累、凝练、总结所获得的反馈信息和经验。面向生态管理体制和管理能力的现代化提升需求,融合大数据、地理信息系统(GIS)、全球广域网络(Web)等信息化技术,构建粤港澳大湾区生态管理智能平台,实现多主体信息共享,打破管理决策的“黑箱”,为推进生态环境管理现代化提供可靠可行的方案。构建的生态系统管理业务流程和管理策略,将知识充分融入管理决策的制定流程,能服务于粤港澳大湾区的生态文明建设,推动可持续和高质量发展。

粤港澳大湾区华人居民死亡素养现状及当代生死教育初探

目的了解粤港澳大湾区华人居民的死亡素养现状,探讨提升社会大众死亡素养的教育途径。方法采用死亡素养指数量表,包括实践、经验、事实、社区四个维度共29项,对粤港澳大湾区2002位居民进行了死亡素养问卷调查。结果受访者死亡素养平均得分中等(6.70分),其中实践与经验知识得分(7.32分、7.50分)高于事实及社区知识方面(6.20分、6.10分);最薄弱的内容有与刚失去亲人的人谈论丧亲(5.07分)、在家死亡相关法律条例(5.35分)以及对临终者及家属在社区获得支持等。结论粤港澳大湾区华人居民的死亡素养为中等状态,其中社区知识较弱,包括对临终者及照顾者的关注与支持不足。由此提出社区健康教育策略,加强大众生死教育,提升居民死亡素养。

大湾区如何先行先试国际高标准经贸规则

与WTO相关规则对比分析发现,CPTPP等国际高标准经贸规则在全球价值链分工、数字贸易、“边境(后)”规则等方面进行拓展和完善,从经济领域和规则领域两个层面对中国产生诸多影响。结合粤港澳大湾区的发展实际,粤港澳大湾区可在非关税壁垒领域(削减非关税壁垒,对标国际高标准)、服务贸易领域(促进服务贸易高水平自由化)、国有企业和指定垄断领域(营造企业公平竞争的制度环境)、数字贸易领域(审慎管理数据要素,统筹好开放与安全)、中小企业领域(推动中小企业转型升级,提升竞争力)先行先试部分国际高标准经贸规则,为中国改进经贸规则,提出国际经贸规则的“中国模板”提供智力支持。

粤港澳大湾区建设高水平人才高地的关键——以一流人才体系为中心

高水平人才高地不仅是高水平人才聚集区,更是破“五唯”立新标、深化科技体制改革、前瞻布局的人才特区,是原始创新和文理交融的策源地。其核心问题是如何打造一流人才体系,包括一流人才的驱动、甄选、吸引、组织管理与自主培养等。为此本文对愿景驱动、一流人才的标准、甄选方法等进行探讨,分析建设高水平人才高地与一流学科对促进自主培养与留住一流人才的重要作用。鼓励原始创新见效最快的方式是盘点已经问世却尚未得到公认的原创成果,让完成人及时胜出。未来观与AI大爆发决定高水平人才高地建设的前瞻布局,强调安全与发展同等重要。指出借助AI for Science在科研管理创新上的潜力与功效,推动AI+科技评价和AI化改革,知识点考核,杜绝垃圾论文、避免劣币驱逐良币。粤港澳大湾区,特别是深圳,应该从对标硅谷,到跃升为绿色、人文、科技、安全的世界级智慧城市群,实现我国科技的高质量、安全永续的发展,推动世界科学中心建设。

粤港澳大湾区交通流网络空间结构和边界效应测度

推动港澳与内地交通互联互通和融合发展是粤港澳大湾区高质量发展的重要内容。大湾区由于制度差异对跨境交通产生边界效应,但现有研究中利用真实交通流大数据对边界效应的动态测度研究不足。文章基于粤港澳大湾区高速公路收费数据和跨境交通数据构建大湾区交通流网络,采用复杂网络和边界效应度量方法,研究大湾区交通流网络空间结构及其边界效应的动态变化。结果表明,粤港澳大湾区交通流网络具有独特的广佛、深莞惠“双核心―边缘”结构,疫情后大湾区交通流网络的交通覆盖度和紧密度都有较大提升,港澳车流开始跨越边界向北延伸,粤港澳交通融合加速,形成“两岸互通、全域互联”的空间格局,但整体上香港地区和澳门地区在整体网络的重要性依然较弱。香港地区和内地、澳门地区和内地间的阻碍系数高于内地各县区间的阻碍系数,客车的阻碍系数普遍低于货车的阻碍系数。疫情后全网络的阻碍系数呈现动态下降趋势,边界效应的限制作用降低。文章拓展了交通流网络研究中边界效应的定量研究框架,有助于推动粤港澳大湾区交通融合发展。

粤港澳大湾区内地城市群路网韧性的贝叶斯网络评估

随着我国城市化进程的推进,城市路网的韧性问题愈发凸显。构建了一种基于贝叶斯网络模型的城市路网韧性评价模型,并以粤港澳大湾区内地城市群为例,评估了2000—2019年该地区9个城市的路网韧性。基于韧性功能函数从容灾性、稳定性、重构性、恢复性4个方面建立功能层,选取稳定性、可变性、可维护性、可靠性、服务性、安全性、鲁棒性、可修性、适应性9个因素建立性能层,选取客运量、公共汽车数量、道路面积率、出租车数量、交通事故死亡人数、公共交通投资、每万人公共汽车数、道路运输从业人数、人均道路面积9个因素建立因素层。研究结果表明:路网韧性指数最高的为深圳(60%),而最低的为中山(43%);广州、深圳、珠海、东莞的路网韧性一直稳定增长,其余城市的路网韧性浮动较小;路网韧性并非总是随着城市GDP的增长而提高,还与人均GDP有关;敏感性分析表明,路网重构性、路网可靠性、交通事故死亡人数分别为各自所在层中对路网韧性影响最大的因素;加强中心城市与其他城市之间的联系可以提高城市路网韧性。研究成果可为粤港澳大湾区城市群交通路网功能完善与韧性提升提供技术参考。

粤港澳大湾区内地高校港籍大学生的国家认同现状及其塑造机制

粤港澳大湾区建设在塑造中国香港青年国家认同方面具有重要意义。以就读于大湾区内地高校的港籍大学生为研究对象,通过访谈和问卷调查发现,大湾区建设背景下内地港籍大学生具有政治认同度较好、文化认同度较高及国民身份认同度较强的国家认同现状。这缘于港籍大学生在大湾区内地求学时,多元主体围绕其发展需求,以政策吸纳、教育合作、人文交流和生活化传播等四种机制,推进该群体的政治社会化场景变迁,进而对其塑造一种正向的国家认同。据此,应在推进大湾区高质量发展的同时,加强制度改革与规则协调,优化国民教育的课程体系及考核方式,加大大湾区建设的普惠性宣传,借以发挥大湾区在塑造广大中国香港青年国家认同的政策效能。