区域物流空间整合研究——基于长三角一体化的实证

随着经济全球化和信息化的快速发展,现代物流业的发展水平逐渐成为衡量一个国家或地区综合竞争力的重要标志,但近年来长三角地区现代物流规划不统一,空间布局和要素配置不合理等问题明显,严重制约了区域物流的联动发展。据此,以长三角为研究对象,在区域经济一体化背景下,运用GIS、变异系数及区位商等区域分析方法,分析了长三角区域物流的空间结构及演进特征,并在此基础上分析制约区域物流联动发展的主要问题,提出区域物流空间整合的对策建议,认为长三角地区应从物流基础设施建设、园区网络化空间布局、物流信息一体化、大通关建设一体化、区域物流协调机构构建及物流专业人才培养几个方面推动区域物流的空间整合进程。     

城市物流竞争力评价方法研究

城市物流是城市经济建设的重要组成部分,大力发展城市物流对于改进和提高城市经济运行质量、完善城市现代化功能、提升城市综合竞争力都具有十分重要的意义。城市物流系统作为一个完整的系统,要对其运转绩效进行评价,必须把整个系统划分成不同的层面,分析不同层面的特点及影响因素,分别提出合适的定性指标和定量指标,以利于科学、方便地评估城市物流竞争力。结合Delphi法、AHP、多层次模糊判断等多种评价方法,介绍了一种综合评算法,能够考虑影响城市物流的不同因素,包括城市物流基础设施层、相关主体层、服务保障层3个方面,以定性和定量相结合的方法对城市物流的竞争力水平进行了客观合理的比较与评价。     

湛江发展现代物流业的构想与措施

物流业是现代经济发展中的一个重要产业部门，对一个国家和地区的经济发展起到了巨大的推动作用。在分析物流业对经济影响的基础上．剖析了湛江市目前物流业发展状况及其存在的问题，并针。对所存在的问题，提出了湛江市发展现代物流业的构想与措施。     

一种物流配送最短路径混合算法

文章针对Dijkstra和Floyd算法特点及在智能运输中的特点,将两种算法结合起来,形成求解物流配送中两点间最短路径的优化算法-混合算法.该方法用Floyd计算多对顶点之间的最短路径,在路径中少数顶点之间的邻接关系发生变化时,利用Dijkstra计算这些顶点之间的最短路径,加上其余部分路径就得到该图中各对顶点之间的新的最短路径,在约束条件下最终求出各点间最短路径.实验证明,混合算法比Dijkstra及Floyd效率提高11％-20％.本文研究结果可对物流配送中最短路径的选择有所帮助.     

Nye kandidater udgået fra Københavns Universitets Geografiske Institut

Danish Journal of Geography: 71–82, 1995.

This paper presents two mega events as tools in the strategic planning of the Copenhagen area. Due to growing inter-metropolitan competition, increasingly offensive and complex means are applied. This demands strong leadership, stable longterm planning and willingness to accept the costs in order to reach the objectives. Marketing versus strategic planning is discussed. The general position of Copenhagen in the European urban system gives perspective to a potential change on the South Scandinavian urban scene. New instruments of strategic planning in Greater Copenhagen are introduced. The competitive level of Copenhagen is analyzed in relation to Stockholm, Berlin and Hamburg. Two examples of mega events are discussed that represent typical elements in urban competition: cultural events and infrastructure improvements. 1) Copenhagen as ‘The cultural City of Europe’ in 1996 represents a temporary mega event. 2) The planned bridge between Copenhagen and the south Swedish city of Malmö, combined with Swedish entrance into EU, opens up for development of the first cross-national integrated large-city region outside the European centre. This is an example of a mega event which will alter the scene permanently. Both events are important issues used in developing a growth strategy for Greater Copenhagen. But neither the cultural city nor the bridge may by themselves guarantee any advantages. It depends upon the ability of local actors to develop and promote the quality of their city. The paper represents a continuation and elaboration on earlier papers, see Matthiessen (1990, 1992) and Andersen &; Jørgensen (1994).     

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我国港口企业发展现代物流探讨

现代物流是现阶段港口企业在结构调整中的一个主流发展方向,从港口在当前状况下发展现代物流的战略意义、我国港口企业推动现代物流发展的优势、港口企业发展现代物流所采取的具体形式3个方面,对我国港口发展现代物流的重要性和策略进行了论述．     

城市物流园区类型及运营模式——以深圳市为例

物流园区作为城市物流活动的重要空间载体,其发展对城市物流产业的发展具有重要意义。但对物流园区相关研究主要以园区未来规划为主,缺少对发展成熟物流园区的案例研究。鉴于此,文章以物流园区发展较早的深圳市9大物流园区为案例,将其划分为货运枢纽型、城市配送型和综合功能型物流园区3种类型,并总结其在选址、用地规模、业务类型方面的特征;根据政府参与管理程度,将其划分为政府主导型、企业主导型和半政府主导型3种运营模式,并认为城市物流园区运营模式与园区类型具有密切关系。文章从物流园区的依附设施、用地规模、投资规模3方面分析了其对运营模式的影响。     

Tributary confluences and discontinuities in channel form and sediment texture: Rio Chama,NM

Numerous morphological changes can occur where two channels of distinct sediment and flow regimes meet, including abrupt shifts in channel slope, cross‐sectional area, planform style, and bed sediment size along the receiving channel. Along the Rio Chama between El Vado and Abiquiu Dams, northern New Mexico, arroyo tributaries intermittently deliver sediment from erodible sandstone and shale canyon walls to the mainstem channel. Much of the tributary activity occurs in flash floods and debris flows during summer thunderstorms, which often load the channel with sand and deposit coarser material at the mainstem confluence. In contrast, mainstem channel flow is dominated by snowmelt runoff. To examine tributary controls, we systematically collected cross‐section elevation and bed sediment data upstream and downstream of 26 tributary confluences along a 17 km reach. Data from 203 cross‐sections were used to build a one‐dimensional hydraulic model for comparing estimated channel parameters at bankfull and low‐flow conditions at these sites As compared to intermediate reaches, confluences primarily impact gradient and bed sediment size, reducing both parameters upstream of confluences and increasing them downstream. Cross‐section area is also slightly elevated above tributary confluences and reduced below. Major shifts in slope and bed sediment size at confluences appear to drive variations in sediment entrainment and transport capacity and the relative storage of sand along the channel bed. The data were analyzed and compared to models of channel organization based on lateral inputs, such as the Network Variance Model and the Sediment Link Concept. At a larger scale, hillslope ? channel coupling increases in the downstream third of the study reach, where the canyon narrows, resulting in steeper slopes and more continuous coarse bed material along the mainstem, and thus, limiting the contrast with tributary confluences. However, channel form and sediment characteristics are highly variable along the study reach, reflecting variations in the size and volume of sediment inputs related to the surface geology in tributary watersheds, morphology of the Rio Chama at the junction (i.e. bends, confinement), and the relative magnitude and location of past depositional events. Copyright © 2014 John Wiley & Sons, Ltd.     

青岛物流产业发展的空间竞争分析

物流产业是推动地区经济发展的新型服务产业,是社会分工深化的结果。青岛物流产业发展的优势是它的港口,而港口发展则取决于其腹地的大小、经济发展水平以及经济的外向性等。长期以来,环渤海地区三大港口———青岛、天津和大连一直维持着三足鼎立的格局,在市场经济条件下,其为了自身的发展,都在通过改善港口设施,相互袭夺对方腹地,争取更多腹地货源,使自己成为北方国际航运中心。文章通过对三大港口城市进行港口—腹地关系的对比分析,揭示了青岛物流产业发展所面临的国际和国内竞争;并结合在区位、水深、腹地以及港口设施等方面的优势,提出了青岛物流产业发展的方向及对策。