CHANGES IN THE STRUCTURE OF EVAPORATION IN THE ARAL SEA BASIN

An analysis of evaporation changes in the Central Asian plain in connection with the drop of the Aral Sea level beginning in 1961 shows that there has been a reduction in evaporation from stream valleys and deltas and an increase in evaporation from irrigated land and newly formed evaporating surfaces. These new entities are primarily the Arnasay depression (west of the Golodnaya Steppe irrigation district) and the Sarykamysh depression (west of the lower reaches of the Amudarya), which have become filled with spent irrigation water draining from the irrigated land. Another new source of evaporation associated with human activity are the lakes and wetlands formed along the Kara Kum Canal as a result of the filtration of canal water. It turns out, furthermore, that irrigation on sloping piedomon plains, such as those watered by the Kara Kum Canal, requires more water than in old irrigated alluvial plains because of the additional water needed to flush salt out of the soil and to fill subsoil cavities and raise the watertable.     

The Dry Savanna of Northwest India

A comparative analysis of soils and vegetation in the Thar desert of India and the Kara Kum of Soviet Central Asia. Loams and clays found widely in the Kara Kum are absent in the Thar, which contains a distinctive calcareous layer known as kankar. In terms of vegetation, the mes-quite savanna of northwest India represents a transition zone from desert to true savanna similar to the sahel between the Sahara and the Sudan in Africa. Detailed data are given on air and soil temperatures and humidity and the development of the biomass in the Thar, based on 1963 field work.     

Industrial Development of the Desert of West Turkmenia

A review of industrial development of West Turkmenia, with emphasis on the expansion of the oil, gas and chemical industries, the growth of population and urban construction, and the water-supply problem.     

环南海区域16个典型沿海城市的用地空间增长规律研究

本文选取中国和东南亚十个国家16个人口 30万以上城市作为研究对象,采用1990年、2000年、2010年和2018年4期城市建成用地数据,应用城市土地密度函数和公共边测度方法,计算各时段城市空间增长速率以及用地扩张模式,并简要探讨城市空间扩张与人口、产业之间的关系.主要结论为:①1990-2018年间,广州、万象等城...     

PECULIARITIES IN THE FORMATION OF POPULATED PLACES ON THE SEABOARD OF THE USSR

A number of investigators have noted a movement of Soviet population toward the seacoasts, contrasting with the nation's traditional inland development. The pull of the coast has been linked to the increasing foreign trade of the USSR and to greater involvement in ocean affairs in general. The author analyzes the recent growth of maritime urban places in terms of the nation's major maritime regions: Azov-Black Sea, Baltic, Caspian, Pacific and Arctic, compares the rates of urban population growth and discusses some of the factors that account for differences in regional development.     

都市区与非都市区城镇用地扩张的驱动力研究——以长三角地区为例

本文利用土地变更调查数据与经济社会统计数据,分析2001-2006年间长三角地区都市区与非都市区以及都市区内部不同单元的城镇工矿用地变动差异和主要影响因素,探讨都市区城镇用地扩展的驱动机制及演变特征。研究发现,虽然长三角地区城镇用地的整体扩张速度正趋于放缓,但变化趋势在不同类型的区域间存在明显差异。都市区比非都市区增长地更快,其中外围县地区超越中心市成为新一轮的增长热点地区。利用人口、非农产业、房地产投资等社会经济活动指标数据所做的回归分析表明,非农产业的发展是推动都市区城镇用地扩展的关键因素,而对非都市区的城镇工矿用地扩展而言,城镇人口集聚的拉动仍在起主要影响作用。在都市区内部存在功能分工的背景下,中心市与外围县在驱动因素和效果上存在差异。     

陇东地区城镇等级规模结构的分形研究

城镇体系的分形研究是城市地理学研究的新方向。文章从分形理论在城镇体系研究中的应用入手,以豪斯道夫(Hausdorff)维数为依据,借助Zipf公式,对甘肃省陇东地区的城镇等级规模结构进行了分维测算,结果表明该区域城镇体系具有分形特征,说明分形理论适合陇东地区城镇等级规模结构的测算分析。在分形的基础上分析了本区城镇规模结构的分布特点及其存在的问题:①首位城市规模不突出,其经济带动和功能辐射力量薄弱;②中间位序的城镇分布过于集中,人口分布显得比较均衡;③陇东地区城镇体系建设缺乏区际空间规模结构的发展。最后基于分形理论的测算与分析结果,提出了陇东地区城镇体系结构和功能优化的建议。     

TYPES OF URBANIZATION IN THE USSR

A typology of urbanization is developed for the 163 major civil divisions of the USSR on the basis of three factors: (a) an index of the level of urbanization (incorporating the percentage of urban population, the share of cities of 100,000 or more in urban population, an index of urban agglomerations, and a coefficient adjusting for the density of urban population); (b) the structural complexity of urbanization (which is treated as deriving either solely from the urban population percentage in the simplest case; or from the urban population percentage and the share of large cities in a two-element case, or additionally from the presence of urban agglomerations in the three-element case); (c) the dominance of any of the three structural elements. The typology yields 24 combinations of the three factors out of a theoretically possible total of 54 combinations, some combinations being represented only by one or two examples. The typology is conceptualized as a mobile system in which particular major civil divisions may advance to higher levels as urbanization processes continue.     

PANEL ON THE SOVIET UNION IN THE YEAR 2000

A panel of geographers debates possible future developments in the Soviet Union in regional and environmental policy, water resource management, agriculture, industry, energy, population, urban growth and planning, transportation, and foreign trade. The present emphasis on modernization of existing plant capacity in cities of the western, more heavily settled regions of the USSR seems destined to continue, although it will be constrained by a growing shortage of industrial labor, declining terms of trade and resource oversupply in increasingly competitive export markets, and the continued resistance of Central Asian populations to urbanization and industrial employment.     

区域一体化的人口增长与集散效应——以长三角地区为例

城市群一体化深化过程中,如何引导人口布局优化,是推动经济社会高质量发展的重要举措之一。本文基于长三角1990—2017年城市尺度数据,采用双重差分模型,多角度检验一体化的城市人口增长效应,并初步探讨相关驱动机制。结果表明：(1)一体化能够显著促进城市人口更快增长,且城市就业人口规模越大、人口集聚效应越显著。(2)总体效应的显著性,并不能掩盖一体化过程中人口集聚效应的异质性,一方面随着加入协调会时间的推进,不同阶段效应由正转负,另一方面存在不同批次间效应先增长后下降的差异。(3)一体化过程中要素集聚带来的经济发展水平提升,是城市人口更快增长的关键动力,中介效应与调节效应模型验证了这一假设。     

RECENT POPULATION CHARACTERISTICS AND GROWTH IN THE USSR

Data from the preliminary results of the 1989 census and Naseleniye SSSR 1987 permit analyses of age-sex structures of the Soviet population and distributions by civil divisions of natural growth rates, total population growth, urban growth, rural growth, percent urbanization, and growths of cities. The paper complements the treatment of census results by macroregions appearing in the November 1989 issue of Soviet Geography (Rowland, 1989) by summarizing trends emerging at a finer scale of analysis and providing recent background information on demographic components of population change.     

福建省城镇流动人口的空间分异格局——基于六普数据的分析

文章基于第六次人口普查数据,运用数理统计、空间自相关和GIS等方法,分析了福建省城镇流动人口的空间分异格局。研究发现,福建省城镇流动人口在沿海多而密集、以区外流动为主,开放性和活跃性明显,而在内陆则少而稀疏、以区内流动为主,封闭性和粘滞性突出,但沿海和内陆均存在内部异质性;大城市流动人口密集且来源地广泛、对人口城镇化影响大,中等城市流动人口规模较小,小城镇对区内流动人口有一定吸纳能力。文章还探讨了城镇流动人口空间分异特征的驱动机制、对区域社会经济发展和城镇化的影响,并提出相关政策建议。     

长江中游城市群空间结构的经济绩效影响研究

近年来,城市群成为我国新型城镇化的空间主体,研究城市群空间结构具有重要意义。但现有文献大多从人口维度对城市群空间结构进行分析,缺乏多维视角,其结论的参考价值有限。本文以长江中游城市群为研究对象,运用2006-2015年长江中游城市群内部三大城市群的面板数据,通过位序规模法则以及空间基尼系数,从人口与产业两方面对城市群空间结构进行测度,并进一步研究了城市群空间结构对其经济绩效的影响。结果表明,在控制了其他影响因素之后,人口呈多中心分布,产业呈单中心分布对长江中游城市群的经济绩效有显著的促进作用;资本投入、基础设施建设、政府干预、产业结构和人口规模均是影响长江中游城市群经济绩效的关键因素。未来长江中游城市群可运用人口引导产业流动,以推进多中心的发展进程。     

DYNAMICS OF POPULATION IN THE UKRAINIAN SSR (1959-1984)

Analysis of change in the spatial distribution of population in the Ukrainian SSR demonstrates a pronounced shift toward the east and south, and toward the major metropolitan area of Kiev and Kiev Oblast. An upsurge in city growth in the least urbanized, western Ukraine, coupled with steady, above-average urban growth in other locations, has contributed to gradual erosion of the Donets-Dnieper Region's dominance in urban population. Accelerated rates of rural population decline in western areas of highest rural population concentration has promoted a gradual equalization of the distribution of rural population (translated by H. L. Haslett, Birmingham, UK).     

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。     

PROSPECTS OF THE DEVELOPMENT OF PRODUCTION AND SE'ITLEMENT IN THE NORTHERN YENISEY REGION

A long-range regional planning forecast of economic development and settlement in the North Yenisey region of Siberia, up to the year 2000, envisages the formation of several territorial production complexes based on the development of mineral resources (the nickelcopper-platinum reserves of the Noril'sk district, aluminum raw materials, iron ore, oil and gas and graphite) and hydroelectric development (hydro stations at Osinovo, Stony Tunguska, Maygunna, Kureyka and Khantayka, and ultimately Igarka and Lower Tunguska). The basic urban centers, in addition to Noril'sk, would be Osinovo, Novoturukhansk and Igarka. Urban population is expected to increase from 220,000 in 1970 to 480,000, and rural population from 40,000 in 1970 to 300,000.     

RECENT CHANGES IN THE SIZES OF SIBERIAN CITIES

The author, comparing growth histories of East and West Siberian cities of over 50,000 population through regression and cluster analysis techniques, develops a number of city typologies based on magnitude of population growth, economic specialization, and social infrastructure. It is argued that such typologies are useful in planning because they identify types of cities experiencing similar growth conditions and instances where cities have changed from one type of situation to another. Although the study is limited to 1926-1986, it addresses economic and social components of Siberian urban growth relevant to the interpretation of preliminary results of the 1989 census (translated by H. L. Haslett, Leamington Spa, UK).     

吉林省城市体系等级规模结构研究

等级规模结构是城市体系的三大结构之一,其特征可以反映出城市在不同规模层次中的分布状况及城市人口集中或分散的程度,有助于认识城市体系发展所处的阶段。通过统计数据计算分析,运用分形理论,发现吉林省城市体系等级规模结构满足位序-规模分布规律,城市规模分布的均衡程度较高,中小城市比较发育,首位城市垄断作用不突出,缺乏大城市。在吉林省城市体系动态变化过程中,等级规模结构相对稳定且不断趋于集中。在此基础上提出重点培育通化、延吉等大城市;继续扩大长春规模,发挥整体效益;加强交通网络建设;加快矿业城市可持续发展等建议。     

都市区与非都市区的城镇用地增长特征:以长三角地区为例

作为人口与经济活动高度集聚的地区,都市区地域的发展和空间结构特征引起了大量关注。本文以长三角两省一市地区221个区县单元为研究对象,在划分都市空间单元类型的基础上,考察都市区与非都市区以及各类型都市区之间城镇工矿用地增长的差异,并据此探讨在我国特殊经济社会环境下都市区地域的空间发展规律。研究发现,不同地域单元在中心-外围关系上存在差异,都市区进入了均衡扩散阶段而非都市区以中心城市极化为主,孤立都市区的扩散效应较弱,非都市区地域的县域单元受到临近都市区的影响而呈现出不同的城镇工矿用地扩展特征。都市连绵区内不同亚区域存在发展阶段与空间关系上的差异,加剧了都市连绵区空间结构的复杂性。来自中心城市、外资拉动、县域经济内生的多重力量推动都市地域呈现独特的空间规律。     

城市人口地图编制指导思想、原则及指标体系

城市人口地图是以城市为基本制图单元的人口地图。编制城市人口地图应遵循以下指导思想:城市是国家经济力量的主体.是独特的经济地域;城市是国家高知识密集地区和精神文明的重要载体;城市对提高人口文化素质具有重要战略意义。城市人口地图的编制原则为以下几方面:科学性、实用性与艺术性相结合;提高地图容量,增加载负量,突出差别;疏密适中,取舍有度;图面的配置合理,色彩协调;精益求精、一丝不苟。城市人口地图编制中应建立科学的指标体系。