首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   19篇
  免费   0篇
大气科学   4篇
地球物理   1篇
地质学   3篇
海洋学   1篇
天文学   1篇
自然地理   9篇
  2022年   1篇
  2018年   2篇
  2017年   4篇
  2016年   1篇
  2015年   1篇
  2013年   1篇
  2012年   1篇
  2011年   3篇
  2009年   1篇
  2007年   1篇
  2005年   1篇
  2004年   1篇
  2003年   1篇
排序方式: 共有19条查询结果,搜索用时 15 毫秒
1.
This paper continues recent discussions on the (geo)politics of the production of academic knowledges, in relation to the recent rise of narratives of 'the creative economy'. Creativity and the 'creative industries' are increasingly common components of urban economic development discourse, especially following the release of a set of key books – most notably Charles Landry's The Creative City (2000), and Richard Florida's The Rise of the Creative Class (2002) – that have become popular among economic development planners and cultural policy makers. This paper focuses on the traffic of these books, and their authors, beyond the Anglo-American core. It also briefly discusses policy discourses interpreted from these texts. It is principally, though, a critique of the ways in which academic knowledges circulate, stemming from theorization of academics as creative producers, and of knowledge production as part of the creative economy. The article seeks to critique the means by which particular northern economic knowledges become normative, framed as universal and 'global', and are distributed and absorbed via intellectual 'scenes' and an academic 'celebrity' circuit.  相似文献   
2.
3.
In current scientific efforts to harness complementarity between resilience and vulnerability theory, one response is an ‘epistemological shift’ towards an evolutionary, learning based conception of the ‘systems-actor’ relation in social-ecological systems. In this paper, we contribute to this movement regarding the conception of stakeholder agency within social-ecological systems. We examine primary evidence from the governance of post-disaster recovery and disaster risk reduction efforts in Thailand's coastal tourism-dependent communities following the 2004 Indian Ocean Tsunami. Through an emerging storyline from stakeholders, we construct a new framework for conceptualising stakeholder agency in social-ecological systems, which positions the notion of resilience within a conception of governance as a negotiated normative process. We conclude that if resilience theory is proposed as the preferred approach by which disaster risk reduction is framed and implemented, it needs to acknowledge much more explicitly the role of stakeholder agency and the processes through which legitimate visions of resilience are generated.  相似文献   
4.
There is growing interest in rates of nitrate uptake and denitrification in restored streams to better understand the effects of restoration on nitrogen processing. This study quantified nitrate uptake in two restored and two unrestored streams in Baltimore, Maryland, USA using nitrate additions, denitrification enzyme assays, and a 15N isotope tracer addition in one of the urban restored streams, Minebank Run. Restoration included either incorporation of stormwater ponds below a storm drain and catch basins to attenuate flow or hydrologic “reconnection” of a stream channel to its floodplain. Stream restoration was conducted for restoring aging sanitary and bridge infrastructure and introducing some stormwater management in watersheds developed prior to current regulations. Denitrification potential in sediments was variable across streams, whereas nitrate uptake length appeared to be significantly correlated to surface water velocity, which was low in the restored streams during summer baseflow conditions. Uptake length of NO3 –N in Minebank Run estimated by 15N tracer addition was 556 m. Whole stream denitrification rates in Minebank Run were 153 mg NO3 –N m−2 day−1, and approximately 40% of the daily load of nitrate was estimated to be removed via denitrification over a distance of 220.5 m in a stream reach designed to be hydrologically “connected” to its floodplain. Increased hydrologic residence time in Minebank Run during baseflow likely influenced rates of whole stream denitrification, suggesting that hydrologic residence time may be a key factor influencing N uptake and denitrification. Restoration approaches that increase hydrologic “connectivity” with hyporheic sediments and increase hydrologic residence time may be useful for stimulating denitrification. More work is necessary, however, to examine changes in denitrification rates in restored streams across different seasons, variable N loads, and in response to the “flashy” hydrologic flow conditions during storms common in urban streams.  相似文献   
5.
Mixed-ethnicity partnerships are becoming increasingly common in Australia and other countries of high immigration. Formal and de facto marriages involving partners from different ethnic backgrounds are key indicators of decreasing social distance between groups. Yet mixed-ethnicity couples have received scant attention from Australian geographers. We use customised data from the 2011 Australian census to analyse the nation-wide distribution of several types of mixed-ethnicity couples. We focus on couples comprised of an Anglo-European (ethnic majority) partner, and a partner from a ‘visible’ ethnic minority group. Our analyses explore the residential geographies of mixed-ethnicity couples vis-à-vis ‘co-ethnic couples’ (where partners share the same ethnicity). We find that mixed-ethnicity couples are more widely dispersed across Australian cities and regions than comparative co-ethnic couples. However, each type of mixed-ethnicity couple has its own unique residential pattern: there are multiple geographies of mixed-ethnicity couples in Australia. These distinctive patterns reflect the migration and settlement histories of the couples’ constituent ethnic groups, but also hold great potential to shift seemingly entrenched ethnic residential geographies in the present and future.  相似文献   
6.
In the Philippines, Integrated Coastal Management (ICM) represents the dominant response to narratives of ecosystem decline. However, there are persistent challenges to implementation, manifested in continued resource degradation, questioning of the exercise of stakeholder involvement and rising resource conflicts. This paper examines the implementation process and how the assumptions embodied in the ICM regime meet the local reality in one group of islands in the Philippine archipelago. The evidence shows how the transformation towards a supposed equilibrium state of coastal ecosystems is undermined in the face of diverging stakeholder agendas. Expected actors are disempowered by the incoherence between the policy owners’ worldview and reality, paving the way for unethical influence from elite alliances. This is coupled with a deepening of the dominance of state, international development banks, foreign aid agencies, and NGOs in promoting their respective interests. In localities such as the Babuyan Islands, when assumptions of ICM collapse it has destructive consequences for fisherfolk and the coastal environment. We conclude that if ICM is to foster an effective and equitable correction of current unsustainable exploitation patterns, then there is a need to institute improved accountability mechanisms in the devolved governance system as well as taking seriously the espoused commitment to stakeholder involvement in determining the goals and assumptions of ICM.  相似文献   
7.
Natascha Klocker 《Geoforum》2012,43(5):894-904
In recent years, scholarship on children’s work has increasingly incorporated the perspectives of working children. Although laudable, this shift toward children’s inclusion in research has concentrated on those employed at the time of data collection. Former child workers have largely been overlooked as a source of information. This paper reflects on research conducted with current and former child domestic workers in Tanzania. The child domestic working experiences reported by those two groups diverged markedly: those who had already ceased employment reported far higher rates of dissatisfaction with child domestic work, and far more experiences of exploitation and abuse, than those who were still employed in the sector. This paper explores issues of memory, identity, representation and performance to propose explanations for such dissonance. It concludes that the (near) exclusive focus of the literature on children who are currently employed is of some considerable concern, as scholars often make practical and policy-oriented recommendations about children’s work on the basis of their findings. This paper makes a case that all ‘versions’ of a phenomenon offer (at best) partial insights into lived experiences and that researchers investigating sensitive issues, whether with adults or children, may benefit from conducting research in both the past and present tense.  相似文献   
8.
Boundary-Layer Meteorology - When wind blows over the ocean, short wind-waves (of wavelength smaller than 10 m) are generated, rapidly reaching an equilibrium with the overlying turbulence (at...  相似文献   
9.
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号