Spatiotemporal pattern of climate change in the China-Myanmar Economic Corridor from 1901 to 2018

The China-Myanmar Economic Corridor(CMEC) is an important part of China's Belt and Road Initiative and an important area for global ecology and biodiversity. In this study, the annual and seasonal spatiotemporal patterns of temperature and precipitation in the CMEC over the past century were investigated using linear tendency estimation, the Mann-Kendall mutation test, the T-test, and wavelet analysis based on the monthly mean climatic data from 1901 to 2018 released by the Climatic Research Unit(CRU) of the University of East Anglia, UK. The results show that the CMEC demonstrated a trend of warming and drying over the past 100 years, and the rate of change in Myanmar was stronger than that in Yunnan Province of China. The warming rate was 0.039 ℃/10a. Precipitation decreased at a rate of -6.1 mm/10a. From the perspective of spatial distribution, temperature was high in the central and southern, low in the north of the CMEC, and the high-temperature centers were mainly distributed in the southern plain and river valley. Precipitation decreased from west to east and from south to north of the CMEC. From the perspective of the rate of change, warming was stronger in central and northern CMEC than in southern and northeastern CMEC. The rate of precipitation decline was stronger in the central and western regions than in the eastern region. This study provides a scientific reference for the CMEC to address climate change and ensure sustainable social and economic development and ecological security.

Dynamic response of mountain tunnel,bridge,and embankment along the Sichuan-Tibet transportation corridor to active fault based on model tests

The Sichuan-Tibet transportation corridor is prone to numerous active faults and frequent strong earthquakes.While extensive studies have individually explored the effect of active faults and strong earthquakes on different engineering structures,their combined effect remains unclear.This research employed multiple physical model tests to investigate the dynamic response of various engineering structures,including tunnels,bridges,and embankments,under the simultaneous influence of cumulative earthquakes and stick-slip misalignment of an active fault.The prototype selected for this study was the Kanding No.2 tunnel,which crosses the Yunongxi fault zone within the Sichuan-Tibet transportation corridor.The results demonstrated that the tunnel,bridge,and embankment exhibited amplification in response to the input seismic wave,with the amplification effect gradually decreasing as the input peak ground acceleration(PGA)increased.The PGAs of different engineering structures were weakened by the fault rupture zone.Nevertheless,the misalignment of the active fault may decrease the overall stiffness of the engineering structure,leading to more severe damage,with a small contribution from seismic vibration.Additionally,the seismic vibration effect might be enlarged with the height of the engineering structure,and the tunnel is supposed to have a smaller PGA and lower dynamic earth pressure compared to bridges and embankments in strong earthquake zones crossing active faults.The findings contribute valuable insights for evaluating the dynamic response of various engineering structures crossing an active fault and provide an experimental reference for secure engineering design in the challenging conditions of the Sichuan-Tibet transportation corridor.

Potential seismic landslide hazard and engineering effect in the Ya’an-Linzhi section of the Sichuan-Tibet transportation corridor, China

The Sichuan-Tibet transportation corridor is located at the eastern margin of the Qinghai-Tibet Plateau,where the complex topography and geological conditions,developed geo-hazards have severely restricted the planning and construction of major projects.For the long-term prevention and early control of regional seismic landslides,based on analyzing seismic landslide characteristics,the Newmark model was used to carry out the potential seismic landslide hazard assessment with a 50-year beyond probability 10%.The results show that the high seismic landslide hazard is mainly distributed along large active tectonic belts and deep-cut river canyons,and are significantly affected by the active tectonics.The low seismic landslide hazard is mainly distributed in the flat terrain such as the Quaternary basins,broad river valleys,and plateau planation planes.The major east-west linear projects mainly pass through five areas with high seismic landslide hazard:Luding-Kangding section,Yajiang-Xinlong(Yalong river)section,Batang-Baiyu(Jinsha river)section,Basu(Nujiang river)section,and Bomi-Linzhi(eastern Himalaya syntaxis)section.The seismic action of the Bomi-Linzhi section can also induce high-risk geo-hazard chains such as the high-level glacial lake breaks and glacial debris flows.The early prevention of seismic landslides should be strengthened in the areas with high seismic landslide hazard.

Development characteristics and failure modes of reactivated ancient landslides in the Sichuan–Tibet transportation corridor,China

The risk of reactivated ancient landslides in the Sichuan–Tibet transportation corridor in China is significantly increasing,primarily driven by the intensification of engineering activities and the increased frequency of extreme weather events.This escalation has resulted in a considerable number of fatalities and extensive damage to critical engineering infrastructure.However,the factors contributing to the reactivation and modes of destruction of ancient landslides remain unknown.Therefore,it is imperative to systematically analyze the developmental characteristics and failure modes of reactivated ancient landslides to effectively mitigate disaster risks.Based on a combination of data collection,remote sensing interpretation,and field investigations,we delineated the developmental attributes of typical ancient landslides within the study area.These attributes encompass morphological and topographic aspects,material composition,and spatial structure of ancient landslides.Subsequently,we identified the key triggers for the reactivation of ancient landslides,including water infiltration,reservoir hydrodynamics,slope erosion,and excavation,by analyzing representative cases in the study area.Reactivation of ancient landslides is sometimes the result of the cumulative effects of multiple predisposing factors.Furthermore,our investigations revealed that the reactivation of these ancient landslides primarily led to local failures.However,over extended periods of dynamic action,the entire zone may experience gradual creep.We categorized the reactivation modes of ancient landslides into three distinct types based on the reactivation sequences:progressive retreat,backward thrusting,and forward pulling–backward thrusting.This study is of great significance for us to identify ancient landslides,deepen our understanding of the failure modes and risks of reactivated ancient landslides on the eastern margin of the Tibetan Plateau,and formulate effective disaster prevention and mitigation measures.

A Study on German Translation Strategies of Culture-Loaded Words in Documentary Hexi Corridor(Expert)by Adaptation Theory

This paper deals with the translation strategies of Chinese Culture-Loaded Words from the perspective of adaptation theory.It is based on the translation text of the sixth episode“Silk Road”and the seventh episode“Dunhuang”of the documentary Hexi Corridor.Many words with Chinese cultural connotations appear in the subtitles of this documentary.This paper will be divided into four parts.The first part and the second part deal with the basic theories,i.e.,definition of Chinese Culture-Loaded Words and of adaptation theory.The original text is analysed in the third part.This part deals with the background and specifics of the language of the documentary film Hexi Corridor.The fourth part deals with the difficulties encountered by the author in translation practice and the corresponding solutions adopted by the author.The translation difficulties are solved by five translation methods,namely transliteration,loan translation,substitution,interpretation,and adaptation.

基于功能连接度的城市生态廊道空间范围划定研究

如何科学确定城市生态廊道空间范围是城乡规划和风景园林领域最为关心的问题之一。基于电路理论模型量化源地间物种转移廊道的功能连接度,引入经济学“效益成本比”思想构建城市生态廊道空间范围划定模型,提取生态廊道功能连接度效益成本比的拐点作为该条廊道规划建设的参照宽度。结果显示:(1)研究区共识别59个30hm^(2)以上的生态源地,其中大型生态源地多处在研究区外围,景观阻力面空间分布特征具有明显地“核心-边缘”特征;(2)基于最小成本路径模型与电路理论提取出126条生态廊道,并识别了重要生态源地、夹点及障碍点,发现障碍点与夹点空间存在明显拮抗关系;(3)整合电路理论(Circuitscape平台Pairwise模式)与分段线性回归模型划定研究区城市生态廊道的参考宽度范围处于60.27~371.83m,并对比了现有功能连接度量化方法对廊道参照宽度有潜在影响。以上研究结论可为今后城市乃至区域生态网络构建提供科学借鉴。

不同结构因子下带连廊高层建筑外墙火竖向蔓延数值模拟

目的 研究带连廊高层建筑发生火灾时火焰蔓延的变化规律,为该类建筑的防火设计提供参考。方法 应用火灾数值模拟软件FDS建立一个33层带连廊建筑模型,分别改变结构因子、窗口数量两种因素进行模拟,分析该模型在不同条件下的温度分布等温线和温度曲线。结果 结构因子为0.4、0.8、1.2,窗口数量为二、三、四时,达到危险温度540℃,火焰融合高度随结构因子和窗口数量增加而上升;随着结构因子的增加,火焰融合高度提高了0.25~12.5 m;随着窗口数量的增加,火焰融合高度上升了0.9~6.37 m;结论 带连廊高层建筑外墙火焰蔓延高度受结构因子和窗口数量影响;随着窗口数量增加,结构因子对火焰融合高度影响越大,结构因子越大,火焰融合高度越高;建议带连廊高层建筑连廊部分结构因子小于0.8,并选用结构因子为0.8时的火焰融合高度作为外部蔓延防火阻隔区高度。

民族走廊学说与区域舞蹈文化研究——以南岭民族走廊为例

本文以费孝通先生提出的民族走廊学说为研究视角,以南岭民族走廊为研究对象,对走廊所包含的东段粤北地区、中段桂东北地区、北段湘西南地区的瑶族、汉族、壮族、苗族、侗族、客家等族群舞蹈的分布及互动展开比较研究。拟从区域舞蹈文化研究的范式转变、民族迁徙、信仰流播、“中心”与“边缘”等多元视角来看族群舞蹈文化的互动互融,印证南岭民族走廊各族群在历史上的动态流变,以此阐释中华民族多元一体理论的形成与发展,为南岭民族走廊舞蹈文化研究提供更多研究的视角与案例。

河西走廊文化翻译传播研究

从洛特曼文化符号学的角度出发,探析文本的三个功能在河西走廊文化翻译传播过程中产生的影响,并探索河西走廊文化国际表达的有效路径。研究发现,文本的信息记忆功能指导译者在翻译中还原原文的历史信息,通过重构文化联想的空间来引发读者的共鸣;信息传递功能引导译者采取迂回婉转的方式转换原文,消除文化不匀质现象,实现最大化的信息等值传递;文本的信息生成功能解决两种语言文化空缺或概念空缺的现象。

物权视角下新加坡有盖连廊建设机制探析

有盖连廊是适应炎热多雨气候特征,塑造城市步行友好环境和高质量城市公共空间的重要街道设施。梳理新加坡有盖连廊的发展历史,切入有盖连廊体系的物权结构,提炼出私有、公有、共有三种物权形态的连廊建设模式,指出涵盖多种物权形态的连廊建设机制是有盖连廊体系形成网络化和连通性的制度保障,精细化的设计导控规则是连廊体系无缝连接的技术支撑,高效持续的运维反馈机制是有盖连廊落地实施的效果保证。新加坡有盖连廊建设经验对我国岭南地区推广和建设有盖步行体系具有重要的启示意义。

关于打通铁路网运输能力堵点对策探究

国铁企业落实党中央部署要求并加快推进铁路货运市场化改革,采取有效措施尽快打通铁路网运输能力堵点,有效降低物流成本。通过分析路网总体规模、旅客运输供给能力、货物运输保障能力等铁路网运输能力现状,剖析铁路网运输能力堵点及成因。在此基础上,提出加强铁路网运输能力经验借鉴,探析打通铁路网运输能力堵点对策,即:畅通普速干线通道,加强煤运通道能力保障,强化中欧班列通道能力,完善港口铁路通过能力,增强西部陆海新通道线路能力,完善枢纽点线配套能力,强化铁路货运设施设备卸车能力等方面,在助力降低全社会物流成本中发挥“火车头”的重要作用。

高质量发展视阈下藏羌彝走廊公共文化服务效能评价

以藏羌彝走廊七个省(区)为研究对象,运用熵权TOPSIS模型评估2014—2019年藏羌彝走廊地区公共文化服务效能水平,着力推动藏羌彝走廊地区公共文化服务的高质量建设。结果显示:(1)藏羌彝走廊公共文化服务效能整体呈不断上升趋势,各地区间的公共文化服务效能绝对差距仍然较大,相对差距不断缩小。(2)藏羌彝走廊各地区公共文化服务效能空间分布呈现出较为明显的“东高西低”格局。(3)藏羌彝走廊地区公共文化服务效能障碍因子存在一定的地区差异性,但差异较小。针对各地区公共文化服务效能差距较大问题以及存在的障碍因素,提出实行差异化发展策略、优化及整合资源配置、加快建设公共文化服务数字化等相关建议。

技术生态位对长三角G60科创走廊创新效率的影响

G60科创走廊是实施长三角一体化战略的重要载体。基于2012—2021年地级市面板数据,构建双向固定效应模型和空间杜宾模型,考察技术生态位的宽度和重叠度对G60科创走廊各城市创新效率的直接影响及空间溢出效应。结果表明,不相关技术的生态位宽度与各城市创新效率显著负相关,相关技术的生态位宽度显著提升创新效率,整体上技术生态位宽度增加不利于创新效率提升;技术生态位重叠度对创新效率具有显著促进作用;在空间效应方面,技术生态位宽度存在显著的负向空间溢出,技术生态位重叠度则显著正向空间溢出。为实施G60科创走廊高质量协同创新、推动长三角创新一体化战略提供理论参考和借鉴。

半封闭温室关键系统设计与应用

半封闭温室是近年来新兴温室,其中温室气候走廊和正压送风系统是半封闭温室的关键系统设计。通过对半封闭温室内夏季温度分布的均匀性和风道风速测试试验,验证温室的降温能力和送风系统性能。试验结果表明,SFG5-4型风机配套35 m长风道,送风相对均匀,风速4.3~4.7 m/s;对于温度分布规律来说,在同一水平方向上温室内各点的平均温差1.0~1.8℃,在同一高度方向上温室内各点的平均温差2.2~3.5℃,并且3.5 m湿帘比2.0 m湿帘降温效果好。

孝道传承与危机分担:南岭走廊瑶族丧葬仪式中的民俗教育

丧葬仪式体现了民众最传统的社会法则与文化逻辑,具有重要的民俗教育功能。南岭走廊瑶族丧葬仪式通过文本演述、“送灵安魂”、上祭守孝、集体互助、空间净化等环节,创造出一个民俗教育的濡化空间,对个体进行浸润与教育。一方面重视传承孝道观念,进行悲伤纾解与情感疗愈;另一方面重建社会秩序,包括强化三界空间认知与象征秩序,以及经由集体分担死亡危机恢复社区公共秩序。对丧葬中多维民俗教育方式的研究,有利于深入探究中华文化“大传统”与“小传统”如何在民众生活中融合共生,为铸牢中华民族共同体意识研究提供新的思路。同时,民众乐观豁达面对死亡的生命智慧对于当今社会的生命教育具有深刻的反思和借鉴意义。

从传说到信仰:论河西走廊平天仙姑信仰及其在内蒙古高原的传播

传说反映了人们对历史上曾经发生过的一些重大事件、产生过深远影响的人物的集体记忆,在一定程度上说明了历史真实。西汉时期,修道者在河西走廊临泽县板桥一带募化建桥,是仙姑故事的原始素材和历史真实。只是在后来的发展演变中逐步形成了以“仙姑原型”为蓝本,富有神奇色彩的民间传说,并在传说的基础上不断神化仙姑,最终形成了平天仙姑信仰。平天仙姑信仰是产生于甘肃省张掖市临泽县板桥一带,而又广泛流传于河西走廊黑河流域的民间信仰,是河西走廊特殊的自然地理条件和社会环境下多元文化共生共融的产物,是各种信仰文化融合的产物,既能够满足农耕民族,又能够满足游牧民族信仰需求。平天仙姑信仰借助河西走廊的地缘优势,通过民族之间的交往互动在周边邻近内蒙古高原民众当中有了较为广泛的影响。平天仙姑信仰在内蒙古高原民众当中的传播、影响实际上是长期以来各民族共同创造的中华文化影响力、辐射力的一个缩影和侧面。从文化层面,铸牢中华民族共同体意识就是对各民族共同创造的中华文化的认同。

藏羌彝走廊民间身体文化符号传播与产业发展研究——以大渡河流域为例

藏羌彝走廊有着神秘的宗教祭祀、节庆仪式等民间身体文化,形成了独特的民族文化符号,对坚定文化自信和强化民族共同体意识意义重大。运用文献资料法、田野调查法等研究方法,以藏羌彝走廊民间身体活动为研究对象,以符号传播为切入点,把符号生产和符号消费作为主客对象,探索身体文化符号引申意义,主要针对大渡河流域以藏民族为主的不同支系民间身体活动展开调查,结合目前的消费现状且供大于求的符号补缺时代特征,在身体艺术、仪式、文化领域的符号表意价值上,从符形、符义、符用的符号传播互动以及“以小见大”的微观个案和整体观,研究身体活动在生产生活、节庆、宗教等的文化表达,有助于文化发展的真实记述与客观分析,创建出身体文化符号服务质量提升下的文化产业发展新模式。

差异性与共同性:藏彝走廊南部“弟兄祖先”传说范式的探讨

以广泛流传于藏彝走廊南部民族中的“弟兄祖先”传说不同版本之突出情节变量——婚姻为视角,可将其分为一次天女婚型、一次兄妹婚型和多次两种婚交替型。再按照传说在藏彝走廊南部从西北至东南的流传路径,传说的不同范式就大致呈现出西北、东南相反序列对称的地域性规律变化。通过比较四个典型的多次两种婚交替型版本,发现不管天女婚还是兄妹婚都以人或物在上下、高低空间的重复流动,尝试把两种对立的事物结合起来。所以,传说不同范式的地域性变化就是通过对人群间差异性与共同性的生产、维持和转换,解决社会性别、血缘、空间等二元结构的矛盾。基于传说版本中人群间共同性与差异性的演变关系,可为研究中国民族关系、铸牢中华民族共同体意识等提供一个可供进一步分析的案例。

科创走廊创新生态系统的构建:底层逻辑和实现路径

科创走廊创新生态系统以“科技创新”为核心主张,以“走廊”为空间组织方式,集聚创新人才、整合创新资源,在推动基于科学的创新、促进区域科技成果转化方面展现出极大优越性。我国长期以来偏向应用的创新发展模式,在新形势下暴露出难以克服的“卡脖子”“重复建设”等问题。基于此,近年来科创走廊方兴未艾。其底层逻辑是,协同整合创新生态系统中的各类创新资源,在跨市域的“中尺度”范围内,以基于科学的产业为引领进行产业优化与重组——产业重组,构建产业链创新链全链条顺畅的“中尺度”科创走廊创新生态系统——区域重构,最终实现价值的共创、共赢、共享。进而从企业、产业和区域三个维度构建科创走廊创新生态系统,其关键是构建产业协同创新服务体系,促进产业资源要素流动配置,优化区域经济社会发展结构,最终实现区域科技创新生态高质量发展。

企业异质性视角下的文化产业集聚动力分析——基于藏羌彝走廊数据的实证研究

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