城市群生态空间结构研究

生态空间结构合理有序将会促进城市群健康可持续发展。文章利用生态学原理深入分析了城市群生态空间结构与经济社会发展之间的互利共生和协同进化机制,构建了生态空间结构优化组合模式;对全球尺度、国家尺度、省级尺度和地区尺度等不同层次上的城市群进行实证分析。研究结论为:①城市群范围内城市规模大小合理、密度适宜,空间组合有序,生态空间结构优化高效,经济社会与生态环境之间互利共生、协同进化;②“廊道组团网络化模式”是城市群空间结构演化的必然趋势;③“廊道组团网络化模式”下形成的城市群生态空间结构可以进一步提高区域生态环境容量,有利于“人与自然”和谐相处。     

Understanding China’s monetary policy: an institutional perspective

Given China’s status as a large transitional economy, analysing the country’s monetary policy requires an understanding of the institutional and policy environment within which monetary policy operates. As China’s monetary policy has multiple objectives and the central bank is subordinate to the State Council in monetary policy decisions, addressing deep-rooted structural issues and improving governance and institutions are essential so that monetary policy can be more focused and effective. Confronted with the Impossible Trinity dilemma, China faces daunting challenges in tackling the inevitable policy choice between monetary autonomy and exchange rate control as its capital account increasingly liberalises. This article analyses China’s unique and evolving monetary policy framework from an institutional perspective and evaluates the challenges to monetary management and reforms. Relevant policy implications for monetary policy implementation are also discussed.     

山地环境中廊道对人居格局及城镇体系的影响——以滇西北为例

滇西北地区山地人居环境在长期的适应性"生长"过程中,受自然廊道和人文廊道的影响较大,通过对滇西北地区独特区位特征的分析,探讨了山地环境中自然廊道和人文廊道对山地人居格局及城镇体系的影响,分析了目前滇西北山区发展中的主要问题,希望为其快速脱贫并走上可持续发展之路提供依据。     

科技创新与地区经济融合发展评价研究——基于金华市数据分析

科技创新作为经济发展的内生驱动力,获得学者的普遍关注。为探究两者的协同发展情况,构建了科技创新、地区经济发展两大指标体系,共形成科技创新11个指标,经济社会发展4个指标。通过数据标准化处理,利用协调度模型进行测度。研究发现金华市2015-2018各地级市科技创新和经济社会综合水平发展均不同程度的有所提升,协同度基本稳定,但存在明显差异。各地级市科技滞后发展情况严重,应加强科技创新发展,优化产业结构。     

开拓对俄经贸对齐齐哈尔物流市场的影响研究

随着中俄两国关系的逐步发展,为齐齐哈尔市发展对俄经贸提供了难得的机遇,齐市应该加大对俄经贸市场开拓的力度,以实现产业结构的升级。主要措施有:推进齐市对俄物流体系建设;建设带有独特特色的对俄市场;与俄罗斯连手打造科技产业基地;积极与俄罗斯IT产业合作,大力发展服务外包产业;开拓对俄家电产品售后服务维修市场;充分利用"哈大齐工业走廊",开拓对俄经贸大通道等。     

Design of a rail transit line for profit maximization in a linear transportation corridor

This paper addresses the design problem of a rail transit line located in a linear urban transportation corridor. The service variables designed are a combination of rail line length, number and locations of stations, headway and fare. Two profit maximization models, which account for the effects of different transit pricing structures (flat and distance-based fare regimes), are proposed. In the proposed models, the effects of passenger demand elasticity and population density along the urban corridor are explicitly considered. The solution properties of the proposed models are explored and compared analytically, and the indifference condition for the two fare regimes in terms of the operator’s net profit is identified. A heuristic solution algorithm to solve the proposed models is presented. Numerical examples are provided to show the effects of the fare regimes, rail capital cost and urban configuration (in terms of urban population distribution and corridor length) on the design of the rail transit line and the profitability of the rail transit operations.     

哈大齐工业走廊建设的理论基础

从理论视角研究区域经济发展将为哈大齐工业走廊建设奠定理论基础。增长极理论、产业集聚理论和工业园区理论从不同角度提出了区域经济中心建设的主要内容和要求,为哈大齐工业走廊建设提供了重要参考。综合三种理论内涵,可以提出哈大齐工业走廊建设的主导思想。     

郑汴洛城市廊道的"走廊城市"建设

论文首先对"走廊城市"进行了概述,并分析了建设郑汴洛"走廊域市"的区域背景和可能性;其次对郑汴洛之间快速交通廊道的基础和未来建设进行了探讨,提出了郑汴洛"走廊城市"建设的特色发展模式;最后提出了郑汴洛"走廊城市"核心城市和核心城市之间的功能整合策略.     

石羊河流域绿色农业循环模式研究

该研究针对石羊河流域绿洲灌区环境资源特点、产业优势及生产中存在的问题,通过对当地玉米、小麦两大主栽作物秸秆饲料化利用、肉牛健康养殖、废弃物综合利用、农畜产品生产全程质量监控等技术的组装配套,试验研究总结形成种养结合、资源循环利用、清洁生产的绿色农业发展模式,即种养结合型模式"玉米—牛—沼—肥"、大田设施配套型模式"小麦—菇—肥—果(葡萄)"、小型养殖场型模式"牛—沼/蚯蚓—肥/饲料"。并对模式、特点、技术集成要点及效益进行阐述分析。对该3种模式在石羊河流域典型区域武威市凉州区谢河镇示范验证,农田节水30%,秸秆养殖利用率达到60%,牛羊良种化率提高30%,奶牛母犊牛生产率达88%,减少化肥施用量20%,减少生活能源支出55%,减少农业废弃物排放75%,提高农业综合效益36%。     

Measuring the spatial economic impact of the Maputo Development Corridor

Years after being launched, the Maputo Development Corridor (MDC) is still facing a number of socio-economic challenges. Prominent amongst these are its failure to create adequate employment opportunities; a top-down functional approach which excludes ordinary citizens; and an unfocused management approach. The MDC also suffers from a lack of clarity on key conceptual issues such as the economic influence exerted by its nodes along the corridor and the width of its economic influence away from the spine of the corridor. This study empirically establishes the influence of nodes along the MDC and ascertains the statistical significance of the impact of the corridor over distance away from its spine. ArcGIS, standard statistical analyses and multivariate regression analysis are used to determine the relative impact of nodes on subsets of the corridor along that corridor as well as the width of its impact at various distances away from the N4 spine.