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Cooling centres provide respite, safety, and social support during extreme heat events for populations that do not have the resources to own or operate in-home air conditioning. The objective of this study was to measure the spatial accessibility of cooling centres and analyze the associations between cooling centre access and marginalization in Montreal, Toronto, and Vancouver, Canada. The potential spatial accessibility of cooling centres within a 15-minute walk was measured at the dissemination area scale using the two-step floating catchment area method. A two-stage modelling approach was used to analyze the associations between cooling centre access and marginalization. Approximately 62%, 58%, and 54% of the populations in Montreal, Toronto, and Vancouver had access to at least one cooling centre. In Montreal and Vancouver, high marginalization areas were more likely to have cooling centre access than low marginalization areas. Of the areas with cooling centre access, smaller access scores were observed in areas with high residential instability. Approximately one-fifth of the areas in each city had no cooling centre access and high marginalization, and may be considered for future cooling centres or programs that improve accessibility to existing centres.  相似文献   
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The idea of strategic planning for networks of cities and towns, encapsulated in the polynuclear urban region concept, has attracted growing interest in many European regions. Key themes include cooperation between neighbouring cities and coordination between functional policies. This article explores the theoretical benefits, including increased economies of scale and improvements in the strength and quality of internal interactions. It also applies these arguments to Central Scotland. As the largest concentration of economic activity in Scotland, with a high level of organizational fragmentation but growing cross boundary issues and coincident growth pressures and deficiencies, there are potential gains from a common strategic perspective. These include improved communications for inter‐firm collaboration and trade, more efficient labour and housing market interactions, and an institutional framework for planning and marketing important regional assets. Closer cooperation within a regional perspective could help the Central Belt to function better as an economic unit and facilitate its ongoing development.  相似文献   
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ABSTRACT Water is a resource that both unites and divides people in the Upper Hunter Valley of New South Wales, where many communities are facing the prospect of large‐scale open‐cut coalmining developments on productive mixed use land, or already live in proximity to mines and power stations. This article analyses conflicts over a proposed coal mine at Bickham in the Upper Hunter Valley, by contrasting the various protagonists' discourses of water scarcity, supply, and connectivity. It examines the ways in which the terms of opposition are narrowed to the arena of state and industry supported science and economic development, marginalising other cultural values and environmental ethics that are integral to opponents' discourses. Opponents have achieved some measure of success through contestation of the uncertain science of hydrological modelling, bolstered by the context of drought and increasing public acceptance of climate change science.  相似文献   
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This article investigates how the Makuleke community in Limpopo Province achieved iconic status in relation to land reform and community‐based conservation discourses in South Africa and beyond. It argues that the situation may be more complex than it first appears, and the ways in which the Makuleke story has been deployed by NGOs, activists, academics, conservationists, the state and business may be too simplistic. The authors discuss historical representations of the Makuleke ‘tribe’ against the backdrop of their experiences of living in the borderland Pafuri region of the Kruger National Park prior to their forced removal. After investigating the ways in which the chieftaincy, and its relation to communal land, has been strengthened by local mobilizations against threats from the neighbouring Mhinga Tribal Authority, the authors suggest that a central tension in the Makuleke area is the conflict between democratic principles governing the legal entity in control of the land (i.e., the Communal Property Association), and traditionalist patriarchal principles of the Tribal Authority. The article shows how these restitution‐linked processes became implicated in the establishment in 2002 of the Great Limpopo Transfrontier Park. The authors also argue that the image of the Makuleke as a ‘model tribe’ is both a product of changing historical circumstances and a contributor to contemporary discourses on land restitution and conservation.  相似文献   
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Nick James 《Geography Compass》2008,2(5):1337-1362
Household food [in]security can be defined as the concept that underpins the various notions of relative food deprivation ranging from hunger, famine and malnutrition to seasonal shortages. The concept is also used to analyse and explain very different and complex livelihood realities at particular and local levels. Since the term emerged in the 1980s, it has gone through many changes and redefinition, but in this article the aim is to make general links to the geographies of food and other livelihood deprivations. The recent debates on livelihoods and participation link closely to the practical concerns around household food security. This article aims to present analysis that brings together regional understanding with insights into heterogeneity and the diversification of livelihoods and household food security in a particular region in Zimbabwe. Its argument is that such a multi‐scale analysis can give a fuller and more useful understanding of the differences and dynamics in household food security and therefore livelihood prospects in general. The regional political economy approach provides insight into the major external impacts in the region. The two most important of these have been the introduction of cotton and in‐migration, both occurring since the 1960s. A second level of analysis focuses on social relations and, hence, institutional developments within the region. These were relatively incomplete until the 1990s and since then the external forces, including the state and market forces, have determined the direction and emphasis of development in the region. Finally, the regional geography approach enables analysis of the local situation from cultural and identity perspectives. The livelihood possibilities are therefore related to social realities within and among the households. In conclusion, such regional empirical focus helps to give a fuller assessment of the unfolding household food security situation in northwestern Zimbabwe.  相似文献   
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