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1.
This essay evaluates the explanatory power of two current models - ‘centrifugal’ and ‘centripetal’ - of the evolution of inner cities. This in done in the light of data on socioeconomic trends that affect residential areas in the cores of the nine major Canadian metropolitan regions. The centrifugal model focuses on the attraction of suburbs on central city residents; the centripetal concentrates on the lure of some inner-city neighbourhoods for certain middle- and upper-income households. While the Canadian trends support some propositions of the models, they seriously challenge others, us models seem unsuitable for explaining Canadian urban reality. They fail to account for the relative socioeconomic stability of core neighourboods in major Canadian cities and the dissociation between trends in their residents' incomes and in housing values. Cet article évalue le pouvoir d'explication démontré par les ébauches théoriques qui visent à faire comprendre l'évolution des quartiers situés à l'interieur des centres urbains. Cette évaluation se sert de données relatives aux tendances socio-économiques qui marquent les secteurs résidentiels situés au coeur des neuf plus grandes zones métropolitaines du Canada. Deux modèles dominent ce champ d'étude: il y a d'abord le modèle ‘centrifuge,’ qui postule une attraction des banlieues exercée sur les résidents de la ville centrale; puis le modèle ‘centripète,’ qui explique l'attrait qu'exercent ces quartiers sur certains manages a moyens et hauls revenus. Alors que les tendances observées dans les agglomérations canadiennes viennent donner du poids à certaines propositions de ces modèles, elles présentent également un défi de taille à certaines autres. Les difficultés ressenties dans l'application de ces deux modèles paraissent relever de l'inadaptation de modèles conçus aux Etats-Unis à la réalité urbaine canadienne. Ces modèles sont considérés particulièrement inaptes à expliquer la relative stabilité socio-économique des quartiers des grandes agglomérations canadiennes et à rendre compte d'un écart grandissant entre lesrevenus de leurs résidents et la valeur des unités de logement qui s'y trouvent.  相似文献   

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The redistribution between 1961 and 1977 of shares in gross domestic product compels a reappraisal of traditional explanations for Canadian economic patterns. The main features of economic growth over this period confirm the explanatory value of the export base model of the development process. Traditional characterizations of core-periphery relationships are compromised by weakening interprovincial complementarities and the articulation of residentiary industries in western Canada. Compromised as well is the notion that there is in Canada a wide disparity in regional per capita income, a disparity that has persisted with little change for many years.
La redistribution des portions provinciales du produit intérieur brut entre 1961 et 1977 se demande qu'on examine de nouveau les explications traditionnelles pour les transformations de l'économie spatiale. Au cours des seize années derniéres les caractéristiques principales du croissance économique rafferment l'utilité explicative du modéle « export-base >>. Les caractérisations traditionnelles du type centre-périphérie sont compromises par l'affaiblissement des rapports complémentaires parrni les provinces et par l'articulation des structures provinciales économiques en Canada ouest. Compromise aussi est la notion qu'il existe au Canada de grandes disparités a l'échelle régionale dans le revenu par habitant, disparités qui ont persisté avec peu de variations depuis de nombreuses années.  相似文献   

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Pending the publication of new Soviet population data based on the 1979 census, to be hald next January, the author reviews population trends in the 1970's. After a steady decline through much of the Soviet period, birth rates and death rates have stabilized for the country as a whole, although marked regional differences continue. An unexplained rise in infant mortality and an apparent reduction of life expectancy have led to the suppression of data in these areas. No ready explanation is found for a recent increase in female fertility and age-specific death rates. Abnormalities in the age-sex structure, resulting from past population catastrophes, continue to persist and indicate future labor shortages. Geographical differences in population growth rates, resulting from differential rates of natural increase and migration, are analyzed. Urbanization, a typical phenomenon of the Soviet period, continues apace, with the biggest increases in large cities despite a policy designed to discourage big-city growth. A crucial question is the optimal disposition of the growing labor pool in the Central Asian region-whether to foster local employment or encourage migration from Central Asia to labor deficit areas elsewhere in the Soviet Union.  相似文献   

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This paper discusses broad population movements within and between metropolitan and nonmetropolitan regions in Canada during the recent past. It is based on an annual series of aggregate migration at the metropolitan level. Three complementary approaches are used in order to distill information from this vast array of interregional flows. The first is based on net migration. The second, disequilibrium analysis, is based on the difference between the observed population shares of regions and a set of calculated steady-state population shares which would result if the currently observed set of interregional migration rates remained constant. Both approaches indicate short-term effects of migration on the evolving pattern of regional growth and decline. The third approach, based on aggregate interregional flows, allows one to observe some changes in migration behaviour which are not made evident by the first two approaches.  相似文献   

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RÉSUMÉ. Les débuts de la coopération internationale dans le domaine de la recherche géographique remontent aux premiers temps de la Confédération. Bien que la participation de canadiens aux premières réunions de Congrès International de Géographic ait été assez rare, un certain nombre d'entre eux y assistèrent a plus d'une occasion. Ce n'est que depuis 1934, année de l'acceptation officielle du Canada au sein de l'Union Géographique International, que notre pays assiste à toutes les assemblées générates de cette organisation et aux congrès géographiques internationaux. Depuis la nomination, en 1952, des premiers canadiens aux commissions de ce groupement, la participation du Canada a été intensifiée de beaucoup.  相似文献   

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In 2010 the US declared the Lake Erie water snake a recovered species, but in Canada the snake is still considered to be an endangered species. After explaining the legal similarities between the Ontario Endangered Species Act and the American Endangered Species Act, this article examines a case study with landowner interviews from one US island and one Canadian island. It is concluded that landowner attitudes toward conservation and private property are very similar. Thus, it is argued that bureaucratic differences, particularly institutional capacity and implementation styles, enabled the US but not Canada to recover the snake. The article concludes with a discussion of the need for better communication between the two countries for the purposes of biodiversity conservation.  相似文献   

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宋涛 《世界》2012,(10):190-191
非工作日的一个午后,我在影棚见到穆杉的时候他正给国内某知名品牌的Pad拍静态样片。拖鞋短裤,外加松松垮垮的大T恤,热情地迎上来苦笑着甩给我一个疲惫的眼神:“拍静物太费脑子,随便坐别拘束,需要拍照吗?我去车里找套衣服换上?就在门口,白的酷搏。来,喝杯咖啡……”  相似文献   

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当岁月的风吹散了历史的迷雾,这些曾经的权力、文化中心在后人面前重现。杭州、洛阳、西安、开封、南京、北京,它们昔日的辉煌让中国的过往都着上了耀目的颜色。一段斑驳的城墙、一池宁静的湖水,都在讲述着这座城市的前世今生。后人总是在试图记录历史,让岁月的流淌重新呈现。就让我们拿起相机,去定格那些渐行渐远的古都记忆,保留岁月赠与我们的这份唯美牵挂。  相似文献   

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范怀良 《旅游纵览》2009,(10):42-47
今年盛夏,我们一行6人受友人之邀乘飞机从我国昆明入境老挝,仅一个多小时就飞抵老挝首都万象。从中文字意看,万象即大象聚集地。去旅馆途中,我们特意用目光搜寻大象,可是一只也没有见到。经询问导游,方知道万象是音译,真实含义是"檀木之堡"。时过境迁,檀木早已被殖民者砍伐殆尽,如今的万象连一棵都见不到了。  相似文献   

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一次澳大利亚、新西兰之行,让我体会到世界之大,的确有很多不一样的地方,整理如下小文,供初澳洲行的旅人借鉴。  相似文献   

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Over the last three decades, regional shopping malls have become significant features of the Canadian urban landscape. They account for the largest concentrations of employment, retail sales, and trip destinations outside the central business district, and they reshape patterns of accessibility within communities. This article examines the number, economic role, location, and implication of these facilities, in Canada, and contrasts them with similar malls in the United States. By 7 986, there were 84 regional malls with more than 500 000 sq. ft. of space in Canada, and these malls accounted for 10 per cent of all retail sales.  相似文献   

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敬霞 《世界》2008,(1):24-25
这是一场古典元素穿插于中国传统文化的盛会,却由一本专注于出境旅游的读物发起;宴会选在历史悠久而传奇的皇家粮仓举行,涌眼望去却是西餐厅的浪漫情调;楼上是中国传统文化展示.台下是西式自助餐红酒,中国传统艺术家和黄发碧眼的外国大使寒喧交流一所有这一切,都是为了答谢一直支持《世界》杂志的各界朋友,并且与他们继续合作,共同为读者奉上更丰富、时尚、精妙实用的高品质杂志内容。  相似文献   

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