Gibrat Revisited: An Urban Growth Model Incorporating Spatial Interaction and Innovation Cycles. 再评吉尔布瑞特：顾及空间相互作用和创新周期的城市增长模型

We designed a geographical model for simulating the distribution of urban growth in systems of cities. The model incorporates the hierarchical and spatial diffusion of innovation cycles through gravitational interactions within a set of cities. Using theoretical simulations, we demonstrate that this model is able to reproduce the observed properties of urban systems for the log‐normal distribution of city sizes as well as the observed distribution of growth rates. Our experimentation was performed on a large harmonized historical database that includes a few hundred French urban agglomerations between 1831 and 1999 (Pumain‐INED database). Both spatial interaction and innovation cycles are necessary ingredients to explain the evolution of urban hierarchies. We suggest that Gibrat's generic stochastic growth model based on independent entities should be replaced by a more relevant model of spatially and temporally interdependent geographical entities.     

Cartographies of supranationalism: Creating and silencing territories in the “Arab Homeland”

In the predominately Arab states of north Africa and southwest Asia, a geopolitical entity exists that is rather uncommon elsewhere in the world. The “Arab Homeland,” as it is referred, is a readily accepted cartographic discourse throughout much of this extensive region. The construction of this entity emerged at the same time as the pan-Arab movement of the mid-twentieth century, which was fueled and motivated by 20th century geopolitical conflicts between Arabs and European imperialists, and between Arabs and Israelis. Through a critical reading of its cartographic construction since the fall of the Ottoman Empire in 1919, I provide unique insights into the numerous, complex, and even contradictory geopolitics of the construction of the Arab Homeland. My analysis of several hundred maps produced in eight different states of the Arab Homeland reveals that from the mid 1950s onward that the Arab Homeland was not only commonplace, but also how this supranational territorial entity confused and at times defied generally accepted divisions of the world. Expanding upon literature on supranational entities and the state, I show that territory is not only still important in our globalized world, but that it also has a complex and at times contradictory relationship with the concepts and scales of the state and the supranational. In emphasizing the role of territory in its construction, I also inject the importance of geography and territory for the pan-Arab movement, which is a factor that has been greatly under-theorized.     

基于POI大数据的资源型城市功能区识别方法与实证——以辽宁省本溪市为例

精准识别城市功能区对于优化协调城市人地系统，完善城市规划及促进城市可持续发展具有重要意义。选取公众认知度和地物一般面积对行业POI数据核密度进行加权，构建城市功能区定量识别方法，以本溪为例，输出城市功能区分布图并开展分析。结果表明：①考虑公众认识度与一般面积的核密度加权方法具有更高的实际性和准确性；②本溪市中心城区受地块大小、交通等因素影响，形成“多中心”组团、“单一-混合”功能区协同发展的空间格局。应进一步完善本溪新城区公共服务体系、优化旅游业产业链条，推进资源型城市转型进程。     

东北地区城市体系分形结构的地理空间图式——对东北地区城市体系空间结构分形的再探讨

在前期工作的基础上,对东北地区城市体系空间结构的分形维数进行了分省、分区计算,然后借助各种不同的分维数值对东北三省城市体系的地理结构进行了区域差异分析,进而总结了几种对于城市体系具有普遍意义的分形空间图式,最后对东北地区城市体系空间结构的分形优化提出了若干建议。文章为城市体系空间结构的分形研究提供了一个完整的范例。     

珠三角中心镇城市化对区域城市空间结构的影响——基于CA的模拟和分析

在珠三角的城市化过程中,中心镇的城市化对区域城市空间结构的形成和发展具有重要的影响,定量地研究中心镇的城市化对揭示珠三角地区城市化过程与城市空间结构的变化具有重要意义。本研究以东莞市为例,运用城市元胞自动机模型,模拟市域内1988-2004年的城市扩张过程,分析中心镇城市化对整个城市空间结构的影响。主要结论:1988-1993年,中心镇的城市化对区域城市空间结构影响较小,城市主要沿道路扩张,城市在空间布局上相对松散;1993-1997年,中心镇对区域城市空间结构影响增强,城市以中心镇为中心的扩张非常明显,城市空间沿道路的扩张,基本形成了渐进扩散式的"点-轴"空间发展模式,形成沿道路和中心镇扩展的格局;1997年以后,中心镇的辐射作用进一步增强,形成了"点-轴-集聚区"的城市空间扩展模式,城市空间扩展区在空间上更集中于中心镇。     

General Geographic Concepts

Following are fragments of a book devoted to theoretical geography on which Professor Smirnov, head of the Department of Economic Geography of Odessa University, was working at the time of his death in July, 1969. An attempt is made to formulate a system of general geographic concepts that would constitute the axiomatic foundation of geography. Several types of fundamental concepts are distinguished: spatial concepts; concepts of the structure and functions of geographical formations; concepts of simple and complex formations, etc. The present paper is limited to an examination of spatial concepts associated with geographical space, which is viewed as one of the general properties of geographical formations. Three basic spatial concepts are discussed: (a) the concept of group space, meaning the space occupied by a set of interrelated objects, as opposed to the individual space of a single object; (b) the concept of spatial integration of phenomena, implying causal relationships; (c) the concept of geographical commonality of phenomena, as opposed to the theory of uniqueness or local exclusiveness. The interplay of general laws and purely local relationships gives rise to a spatial field of interaction known as the geographical field. A geographical formation and its field of interaction may be centered, as in urban settlement, industry and other nodal phenomena, or they may be noncentered, as in rural settlement, agriculture and other spatially continuous phenomena. Other concepts are the area, shape, orientation and spatial dynamics of development of geographical formations.     

Polycentricity and the Multiplexity of Urban Networks

Abstract

Empirical studies on polycentric urban regions (PURs) tend to analyse their spatial organization by examining only one type of functional linkage between cities. However, it has generally been accepted that urban networks are multiplex phenomena and that spatial interactions between cities can take many different forms, for example, commuting, shopping trips, and inter-firm trade. The spatial organization of each of these functional linkages is not necessarily identical, and, therefore, a region can appear to be polycentric and spatially integrated based on the analysis of one type of functional linkage but monocentric and loosely connected based on the analysis of another type of functional linkage. The aim of this paper is to stimulate further discussion on the multiplexity of urban networks with regard to the relational complexity of urban regions. Focusing on one PUR (Randstad Holland), we compare the geographical scope and spatial structure of different functional networks within it. Our results indicate that the spatial organization of the urban network depends on the lens through which it is assessed.     

金融集聚研究进展与展望

金融业集聚属于服务业集聚范畴,既与制造业集聚有共性,又有其独特性。金融集聚的研究主要依托于区位理论、集群理论和金融地理学。区位理论是金融集聚的理论基础,集群理论为金融集聚提供了研究范式,金融地理学的发展为金融集聚研究带来新的动向。金融集聚的现有研究内容主要集中于对集聚的动因、类型、效应、模式的探讨,以及金融中心的构建等几个方面。随着全球化、信息化对金融业的发展布局影响越来越大,未来应重点加强对金融分支行业和微观区域方面的研究。     

Design and self-assembly of information systems

ABSTRACT

The existence of biological information systems is generally taken as given in discussions of their function. However, any theory of such systems must be considered incomplete unless it can also explain how the system comes to exist. This article describes the ways in which complex functional systems in general can be created through design, self-assembly and evolution. The differences and relationship between physical and informational entities, organization, processes and dimensionality are also discussed. Through comparison with information technologies, whose origins we understand, conclusions are drawn concerning the creation of functional biological neural networks: specifically, that this involves the self-assembly of information entities into a number of strongly emergent levels of organization. Finally, potential approaches are considered to overcome the hurdles to scientific investigation of emergent information-based systems and the processes by which they are created.     

THE GEOGRAPHY OF OCEANS AND ITS BASIC PROBLEMS

The study of oceans as a subfield of geography has gained acceptance in the Soviet Union. Some universities have introduced courses in marine geography, and geographers have participated in oceanographic research voyages. An effort is made here to define the place of a marine geography within the geographic discipline as a whole, to set the spatial limits for geographical investigations of the oceans and to suggest problem areas suitable for geographical analysis. In keeping with the Soviet dichotomy, physical and economic geographic problems are distinguished. Physical-geographic problem areas would include study of oceanic water masses; large-scale interaction between oceans and atmosphere; study of island environments, and the biogeography of oceans. Economic geographic problems would focus both on theoretical aspects, such as spatial regularities in human activities related to oceans, and on applied aspects, providing a sound basis for economic development of ocean areas.     

基于实体店比较的长春市外卖O2O餐饮业空间特征及成因

以实体餐饮商家信息和外卖O2O餐饮商家信息为数据基础,融合GIS空间分析和地理探测器等方法,对比分析两种餐饮业态的空间分布特征,并对外卖O2O餐饮业空间分异的成因进行讨论。主要结论如下：①基于路网单元的外卖O2O餐饮网点与实体餐饮网点数量等级存在较大关联。②外卖O2O餐饮业集聚中心正从城市中心区向郊区扩散,形成“圈层+多核心”的空间分布特征。③外卖O2O餐饮业依托商贸综合区和高校文教区高度集聚,并在空间上形成四个集聚热点区。④外卖O2O电子商务的空间发展特征更符合创新扩散假说,由创新中心向外围扩散。⑤对外卖O2O餐饮业空间格局起到主要解释作用的是外卖O2O餐饮商家所在区域的实体餐馆数量、医院数量和高校数量。     

多尺度视角下中国城市创新网络格局及邻近性机理分析

借助2016年国家知识产权局的专利合作数据,利用复杂网络和空间分析方法对国家、区际和省内三个尺度的城市创新网络结构进行刻画,并利用负二项回归法对创新合作的邻近性机理进行了剖析。研究表明：①全国城市创新网络的整体联系较弱,网络极化现象明显,空间结构呈现出以北京为核心的放射型网络形态。区际城市创新网络的跨区域网络联系强于区内网络联系,东中西形成以区域中心城市为核心的异质性空间结构。省内城市创新网络的本地结网不足,内部联系强度低,空间形态普遍呈现出以省会城市为中心的核心-边缘结构。②回归结果证实了社会邻近、技术邻近对城市创新结网具有显著的促进作用,地理邻近则呈现出不显著的正向影响。其中,技术邻近的促进作用显著高于社会邻近,而地理邻近则需要通过社会邻近的调节效应对创新结网产生影响。     

甘川青交接民族区域城镇体系的基本特征及背景分析

甘川青交接区域由于其独特的自然地理环境,多元民族、文化、宗教、经济构成及其历史演变的内陆性约束,致使其城镇发育滞缓。城镇发展的动力主要来自外部中央行政建制,就单个城镇而言,民族宗教文化与民族贸易的亲合关系和响应力,是城镇发展的主要驱动力。特定的地理环境决定着人地关系和人居模式。城镇分布的离散性和差异性显著,并以文脉为纽带进行着区内城镇空间组织。     

Spatial Analysis in Physical Geography and the Challenge of Deterministic Uncertainty

The application of complex and nonlinear dynamical systems (NDS) theory in physical geography and geosciences has proceeded through several stages, and has recently entered a phase where field-testable hypotheses and historical or mechanistic explanations are being generated. However, there are some fundamental challenges. It seems clear that chaos and dynamical self-organization are present, and may be common in earth surface systems, and that these phenomena have spatial manifestations in the landscape. However, NDS theory and methods have been formulated primarily in the temporal domain and are typically ill-suited to real-world spatial data. Spatial analytical methods are not generally capable of distinguishing deterministic complexity and uncertainty from noise. Thus, the detection of the signals of complex deterministic dynamics in real landscapes and spatial data is a major challenge. Entropy-based methods of spatial analysis can be directly linked to nonlinear dynamics, and are at present the best available method to approach this problem. However, there is evidence in the spatial analysis literature suggesting that development of techniques to detect deterministic uncertainty is possible. Pending such a break-through, three general approaches are described, based on spatial analysis of chronosequences, the characteriziation of changes in spatial structure over time, and the spatial-domain testing of specific hypotheses relevant to deterministic uncertainty. Current trends generally suggest a shift in mathematical modeling and spatial analysis in physical geography away from traditional determinism toward approaches that incorporate locational, historical, and scale contingency.     

A Selected Bibliography of Mathematical Articles in Soviet Economic Geography (1960–1968)

Advocates of a new discipline of theoretical geography seek to bolster their argument for establishment of the discipline with quotations from Lenin. Theoretical geography, conceived more broadly than Bunge's mathematical geography, would seek to generalize the findings of all the particular geographical disciplines, to formulate general geographical laws, develop a common geographic method and common approaches to the formalization and modeling of geographic phenomena. Its objects of study are so-called geosystems, which are conceptualized as totalities of the autonomous spatial systems of the environment, population and the economy. Each geosystem is viewed as being associated with its geospace, defined as the “eigenspace of geographical objects, of geographically whole formations”. Geosystems are regarded as possessing a certain degree of freedom in contrast to the view that cause-and-effect relations within such systems are rigidly predetermined. The outlines of a number of general geographic laws are suggested. They include the law of growing contrast in spatial systems of all types and the law of asynchronism in the development of spatial systems. Theoretical geography is presented as having significant practical application in the analysis and prediction of the effect of man's development of spatial systems, in setting of development priorities and determining optimal types of development.     

Cultures of the eighth and seventh millennia BP in the southern Levant: A review for the 1990s

The Pottery Neolithic of the southern Levant (the eighth and seventh millennia BP) was a crucial period in which the foundations were laid for the development of complex societies and urban civilization. This article summarizes the current state of research in this area during this period. Past and present research in Israel and Jordan is reviewed, and methodological problems in fieldwork and analysis are discussed. We attempt a systematic definition of the archaeological entities. For each such entity, we present the available data on chronostratigraphy, characteristics of the material culture (including lithics, ceramics and architecture), burial customs, figurines and images, economy, and site-distribution. While the Yarmukian and Jericho IX occupied territories of similar size and seem to represent entities on the scale of a culture, the later Wadi Raba entity extended over a larger area and was of longer duration. A chronostratigraphic summary is presented, and the major entities are compared in terms of site-types, economy, burials, and geographical distribution.     

Exploring Nonlinear Spatial Dependence in the Tails

In many instances it is of interest to measure the degree of similarity between neighboring regions. Spatial autocorrelation measures are the most popular means of doing it. However, such measures only capture a global linear relationship between regions, whereas in many circumstances a more general instrument is required. For instance, in economic poverty analysis or environmental applications (and in other cases where we are interested in extreme events and threshold exceedances) we should be more interested in the spatial pattern in the tails of the joint distributions. In this article we introduce some exploratory tool that focuses on the bivariate joint tails behavior to detect a pattern of spatial regularities. The method will be illustrated with reference to simulated environmental data.     

边界效应与跨国界经济合作的地域模式——以东亚地区为例

边界是划分不同政治实体及其管辖地域的政治地理界线。国际边界对地区经济发展有屏障和中介两种效应,并在一定条件下可相互转化。从跨国界经济合作的角度,可划分出封闭型、半封闭型和开放型等边界类型,不同的边界类型对跨国界次区域经济合作的影响不同。边界效应在空间维上是可变的,通过空间扩散向腹地外延。文中图示了核心腹地、紧密腹地和边缘腹地三种类型。在经济全球化和区域经济集团化的推动下,开放型边界逐渐增多,跨国界次区域经济合作日益发展,成为区域经济集团化的一种重要表现形式。本文以边界经济合作发展迅速的东亚地区为研究样本,提出了边界跨国界经济合作的3种基本地域模式,即通道模式、贸易口岸模式和开发区模式,并探讨了各自在边界经济合作中的发展内涵及发展前景。     

flowAMOEBA: Identifying Regions of Anomalous Spatial Interactions

This study aims at developing a data‐driven and bottom‐up spatial statistic method for identifying regions of anomalous spatial interactions (clusters of extremely high‐ or low‐value spatial flows), based on which it creates a spatial flow weights matrix. The method, dubbed flowAMOEBA, upgrades a multidirectional optimum ecotope‐based algorithm (AMOEBA) from areal data to spatial flow data through a proper spatial flow neighborhood definition. The method has the potential to dramatically change the way we study spatial interactions. First, it breaks the convention that spatial interaction data are always collected and modeled between spatial entities of the same granularity, as it delineates the OD region of anomalous spatial interactions, regardless of the size, shape, scale, or administrative level. Second, the method creates an empirical spatial flow weights matrix that can handle network autocorrelation embedded in spatial interaction modeling, thus improving related policy‐making or problem‐solving strategies. flowAMOEBA is tested and demonstrated on a synthetic data set as well as a county‐to‐county migration data set.     

中国城市人口集聚分布——基于空间效应的研究

城市人口集聚分布以及城市带的形成是一个空间现象,空间力量对其形成和演化具有重要影响。本文应用空间计量经济学与趋势面分析相结合方法,以617个县级以上城市1998年和2011年的城镇人口和经纬度坐标数据来研究中国城市人口空间集聚分布与趋势。研究发现,中国城市人口分布与其周围相邻城市的人口分布关系密切,并且其6阶空间自相关效应是最强的;同时地理位置对中国城市人口体系的空间分布和纵向形态形成具有显著影响。在空间自相关和空间位置相关的共同作用下,城市人口规模聚集区已在东部沿海地区形成。