THE CHANGING RESIDENTIAL STRUCTURE OF MONTREAL 1971–81

This paper attempts to analyse the changing residential composition of the Montreal metropolitan region over time. More specifically, it examines the principal dimensions of Montreal's residential structure in 1971 and 1981, by conducting two separate factorial analyses based on census data; this part of the study is completed by a direct analysis of change, through factor analysing indices established by combining 1971 and 1981 variables The cross-sectional comparisons underline the regularities between the two residential configurations. The analysis of relative changes uncovers the principal modifications in Montreal's residential space through the period, showing in particular that some neighbourhoods registered major shifts in the composition of their population, due to ethno-linguistic movements or to social mobility. Cet article analyse le portrait changeant dans le temps de la structure résidentielle de la région métropolitaine de Montréal. Basée sur deux analyses factorielles con-duites séparément à partir des données de recensement, la première partie s'attache à décrire les dimensions maîtresses qui structurent l'espace résidentiel de Montréal en 1971 et 7981; cette analyse est ensuite complétée par une étude plus directe du changement qui repose sur une analyse factorielle d'indicateurs établis en combinant les variables de 1971 et 1981. La compa-raison des analyses factorielles transversales souligne la régularité de la structure résidentielle de Montréal dans le tpmps, alors que l'analyse des variables de changement relatiffait ressortir les modifications majeures qui ont transformé l'espace métropolitain au cours des années soixante-dix. Elle montre, par exemple, que plu-sieurs quartiers ont enregistré des changements impor-tants dans la composition de leur population, suite à un processus de gentrification ou de mobilité ethno-Iinguistique.     

Erosion and Nutrient Loss on Sloping Land under Intense Cultivation in Southern Vietnam

To help improve the well‐being of the local people, a joint Vietnamese‐UK team set out to establish a way of estimating soil and nutrient losses under different land management scenarios, using field data extrapolated through remote sensing and GIS, to obtain catchment‐wide estimates of the impact of land cover change. Immigration from remote provinces to the Dong Phu District of Binh Phuóc Province, about 120 km north of Ho Chi Minh City, has led to disruption of soil surface stability on easily eroded clayey sandstones, creating rapid nutrient depletion that affects crop yields and siltation in the channel of the Rach Rat river downstream. The poor farmers of the areas see crop yields drop dramatically after two or three years of cultivation due to the fertility decline. Soil loss varies dramatically between wet season and dry season and with ground cover. Erosion bridge measurements showed a mean loss of 85.2 t ha^?1 y^?1 under cassava saplings with cashew nuts, 43.3 t ha^?1 y^?1 on uncultivated land and 41.7 t ha^?1 y^?1 under mature cassava. The rates of erosion were higher than those reported in many other parts of Vietnam, reflecting the high erodibility of the friable sandy soils on the steep side‐slopes of the Rach Rat catchment. However, although the actual measurements provide better soil loss data than estimates based on the parameters of soil loss equations, a large number of measurement sites is needed to provide adequate coverage of the crop and slope combinations in this dissected terrain for good prediction using GIS and remote sensing.     

Sustainable development and climate change

In 1987, the authors of Our common future argued that unless the world embraced and operationalized sustainable development, it would risk being overwhelmed by a series of interlocking crises related to population growth, urbanization, poverty and environmental degradation. Since then, many authors have argued that the world is on a worst case scenario trajectory. Post‐Rio assessments of progress towards sustainable development have been largely negative. Since 1987, climate change has added a new stressor to the mix while shortening the time frame for transformation. In the context of accelerating change and converging stresses is the concept of sustainable development as compelling today as it was twenty years ago? Is it reasonable to believe there are means by which to reduce poverty and simultaneously protect the environment? This article briefly reviews the global challenges that first stimulated the concept of sustainable development and asks how contemporary processes of global change are affecting both these challenges and this approach to addressing them. While there are some grounds for optimism, several variables are identified that make sustainable development increasingly difficult to design and implement. The article concludes with an evaluation of how these difficulties might be overcome, and why it is essential that we try.     

Typologie et vitalité des communautés francophones minoritaires au Canada

La vitalité des communautés francophones minoritaires du Canada, souvent expliquée par les conjonctures démographique et institutionnelle et par le contexte politico-juridique, souffre encore d'une relative rareté de travaux empiriques illustrant l'action de ces facteurs à l'échelle des communautés. Cette rareté n'a pas permis jusqu'à maintenant d'élaborer une véritable analyse de l'effet de milieu sur la vitalité communautaire des minorités francophones. Notre étude se propose de mieux caractériser la présence francophone dans l'espace canadien hors Québec et, ce faisant, les milieux dans lesquels se construit la vie française au pays. Elle se fonde sur l'idée que la présence francophone, caractérisant un lieu donné, profite également d'un contexte plus large dont les ressources ne peuvent faire autrement que de rejaillir sur la communauté locale. À l'idée de présence localisée , nous ajoutons l'idée de présence contextualisée pour mieux faire le lien entre présence et vitalité communautaire. Une méthode originale est présentée ici qui permet de mettre en application cette complémentarité entre ces deux types de présence. Prenant la forme d'une typologie des milieux francophones minoritaires, elle fournit un nouvel éclairage sur la situation des populations francophones du Canada. Une analyse exploratoire des comportements linguistiques de ces populations selon les milieux issus de la typologie montre qu'une telle approche est susceptible d'ouvrir la voie à une meilleure appréhension de la vitalité communautaire en milieu minoritaire.     

ON FUTURES AND ENDINGS: NARRATOLOGICAL REFLECTIONS ON CONTEMPORARY FORMS OF CRISES*

The article examines the changing relationship of the present to the future from a narratological perspective. It argues that three dominant narrative schemas structure the contemporary experiences of temporality in the Western social imaginary: the modern crisis narrative, the apocalyptic narrative, and the chronic crisis narrative. In its first part, the article shows how the modern sense of crisis, which emerged in the late eighteenth century, sedimented into a powerful narrative template by knitting together the past, the present, and the future into a unified plot. The second part focuses on the resurgence of apocalyptic stories in the Western social imaginary and humanities discourse. The final part highlights the special contribution of aesthetics of precariousness to the Western imaginary of time and temporality. It argues that the “chronic crisis narrative” deflates the teleological narrative arc of the modern crisis paradigm while also shunning the end-time discourse of the apocalyptic narrative.