首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 623 毫秒
1.
“面向区域”的GIS控件的设计与使用   总被引:4,自引:0,他引:4  
陈正江 《地理研究》2003,22(2):227-236
本文提出了一个“面向区域”GIS控件的概念———即以特定的地理区域为对象,将基础地理信息连同有关的GIS功能操作融合为一个可重用的程序模块,以Microsoft的COM(即“组件对象模型”)技术为基础,组织为“GIS化”的ActiveX控件。这种GIS控件,将面向对象技术中的“对象”扩展到了整个特定的地理区域空间,其核心思想是不仅封装了GIS的数据模型,必要的功能操作,而且封装了所有的基础地理信息。由于省去了对空间数据的处理,因而这种GIS控件可被广大非GIS专业的信息系统开发者灵活、简便地用于各种管理信息系统、办公自动化系统和决策支持系统的GIS功能扩充,也可用于构建一般的地理信息系统,因而有利于GIS技术应用的普及。文章最后给出了有关陕西省的应用实例  相似文献   

2.
In this paper, I develop the concept of “bio-gentrification” as a way to broaden critical theoretical debates on the relationship between gentrification and “social mixing” policies. Bio-gentrification weds urban Marxist political economic insights to the neo-Foucauldian notion of biopower. The former stresses spatial tactics of removal and displacement and value generated through land and property. The latter assesses a wider terrain of spatial tactics, their relationship to knowledge produced about humans as living beings, and their alignment with capitalist urbanization. The Vancouver example illuminates how social mixing “truths” and practices to which they are tied generate value by naturalizing human insecurity in situ and transforming the biological existence of disadvantaged peoples into raw material for profit through a process that can be conceptualized as a “vulnerability bio-value chain.” Bio-gentrification refers to the tension between removal and embedding of disadvantaged peoples and points to the need for a bio-gentrification politics to confront this dynamic.  相似文献   

3.
Religion and the expansion of religious sites throughout the built environment have a long and conflict-ridden history. This paper examines the development of three controversial religious sites in Israel that have developed in recent decades in an effort to better understand the kinds of political, social, and locational circumstances that cause some new sites to be regarded as spatially transgressive. The three sites examined here are the Mormon Center in Jerusalem, the Baha'i Gardens in Haifa, and the Church/Mosque in Nazareth. The study is based primarily on 75 structured, open interviews with stakeholders and decision-makers.The broader aim of the paper is to generate a better understanding of the concept of spatial transgression through systematic investigation based on the methodology of “framing.” This methodology provides a comprehensive vocabulary for perceptions, referred to as “frames,” and offers a detailed and systematic typology of frames based on the literature and the empirical data (grounded research) of the case studies.The main findings fall within the three aggregated super-frames identified in the research: “Process,” “Values,” and “Issues.” Of these, the Process super-frame was found to be dominant in all three cases. Comparing the different frames in the three cases enabled us to identify the factors that influenced the transgression process. It also facilitated a better understanding of the different “stories” involved and the concept of spatial transgression, which was found to exist on a scale ranging from low to high intensity. This paper also proposes a framing typology that may prove useful for understanding and mapping similar cases elsewhere.  相似文献   

4.
北京市电子地图集的设计与技术实现   总被引:14,自引:1,他引:14  
丁琳  刘岳  王全科 《地理研究》2001,20(2):220-228
在电子地图设计的研究中,“用户界面设计”、“三维景观表达”、“多媒体的使用”、“动态注记”、“图形冲突”和“屏幕地图的交互功能”等都是至关重要的问题。然而在电子地图日益普及的今天,对这些问题的认识还需进一步的研究。本文结合《北京市电子地图集》的创作实践,详细讨论了电子图集的功能设计和界面设计,对以上问题提出了切实可行的的解决方案,并给出了较为理想的试验结果  相似文献   

5.
Questions of “integration” are normatively assumed to promote particular ideals of the multicultural city and lead to a “settlement” culture that bodes well with the hegemonic majority. This paper, however, questions the concept from an alternative perspective – that is, it aims to explore how “integration” is imagined and understood by displaced migrants through the contextual specificities of multiple and peripheral “public spaces” – defined in this paper as the everyday practices of integrative multiplicity. Exploring these questions in Scarborough, a post-war primarily ethno-racialized suburb of Toronto, the unique experiences of migrants, many who have faced histories of trauma and violence suggest that the settlement experience is not devoid of anxiety and pain. Memories of places and communities left behind, sometimes never to be returned to, harness a longing and deeper need for home-making often spilling into the public realm. Understanding public space and its inherent conceptual and political complexity as defined, used, and valued by recent migrants, allows integration to be understood through the dynamics of power relations. The findings reveal how recent migrants not only understand and use the city but also how they reflect upon and envision the city-building process, through their own individual subjectivities of inclusion/place-making and exclusion/displacement. Through such complex spaces of encounter, civic engagement and grounded experiences, the participants frame Scarborough in multiple and metaphorical forms: from a City of Refuge and Peace; City of Memory, Desire, and Imagination; City of Multifariousness; to a City of Civic Engagement and Fluid Resistance. This stands in stark contrast from how the city is framed in dominant discourse and the unsettling debates on how to reform it.  相似文献   

6.
张机  徐红罡 《地理科学》2016,36(7):1057-1065
以社会角色与角色冲突的相关理论为指导,以云南丽江白沙村当地纳西族居民家的微观空间为研究对象,对当地居民与游客在互动过程中的角色冲突质性进行了研究。研究发现,当地少数民族居民与汉族游客在家空间的互动过程中,双方各自存在角色内冲突的现象,同时彼此之间也存在两种角色间冲突现象。互动双方在处理这些角色冲突的过程中,既反映出当地居民对经济利益的诉求,也反映出当地居民与游客在家空间中的地位与权力关系。  相似文献   

7.
自然的社会建构:西方人文地理学对自然的再认识   总被引:9,自引:4,他引:5  
朱竑  尹铎 《地理科学》2017,37(11):1609-1616
自然的社会建构作为西方人文地理学界对自然的再思考,渐成为理解自然与社会互动的重要理论框架,并逐步成为推动人地和谐、可持续发展研究的新范式。通过梳理自然的社会建构研究理论源起并对西方涉及自然的社会建构的研究文献进行全面梳理发现,自然的社会建构并非单纯指基于建构主义视角考察自然的知识生产或价值与意义,还应该关注自然被生产与形构的商品化过程。现有议题主要聚焦于政治与自然、商品化与自然、社会情感与自然以及日常生活与自然四大方面。在此基础上,进一步提出了国内未来研究需要关注的重要方向。  相似文献   

8.
The main objective of this study is to assess evacuation assistance need in the 100 year floodplain of South Florida (Palm Beach, Broward and Miami-Dade counties) by examining select population characteristics of the floodplain inhabitants. Dasymetric mapping is used to redistribute block group level census data to homogeneous inhabited zones of 30 m × 30 m. Because the 100 year floodplain does not correspond to block group boundaries, this data redistribution increases the resolution and accuracy of the floodplain population and their social characteristics. Data on poverty, age, vehicle ownership and mobile housing units are obtained for each 30 m × 30 m zone in the floodplain and is aggregated to the block group level. It is then used to assess evacuation assistance need (based on volume of need as well as concentration of need) for the floodplain in each block group. Results reveal variations in evacuation need across the floodplain. “Age” is the main driver of evacuation need along the coast. “Poverty” is a factor inland, in both urban and rural areas. “Lack of vehicle ownership” contributes to assistance need in coastal and inland urban areas, but not so much in rural areas. “Mobile housing” is a factor in rural areas. Miami-Dade County has higher volume and concentration of poor households lacking vehicular ownership. Palm Beach and Broward counties, on the other hand, have a more dominant presence of elderly and of mobile housing. These results have important implications for local and regional evacuation planning in the event of a 100 year flood.  相似文献   

9.
Abstract

This paper presents strategies for actively involving students in studying cultural geography through a research project on youth cultures. It provides a basic framework to investigate selected “subcultures” focusing on the origin and diffusion of each culture, its material and non-material aspects and the attributes and meanings of spaces used by each cultural group and youth cultures in the context of change. Students used a variety of methodologies to gather data and to describe and analyze the cultures selected. Of the eleven youth cultures investigated by the class, examples from the cultures of raves, skateboarding, and the Boy Scouts of America (BSA) are selectively presented to elucidate their geographic characteristics.  相似文献   

10.
Newspaper reporters are important actors in promoting gentrification. This study of St. Louis examines their use of a prominent representation of neighborhood in this process: dying neighborhoods in need of middle‐class technical salvationists. We examine its use to help drive two processes to promoting gentrification: legitimating restructuring at actual or anticipated sites and isolating “revitalization‐contaminating” communities. We discover this neighborhood representation is applied primarily to legitimate restructuring at specific sites. Revitalization‐threatening neighborhoods, represented differently, indicates this representation is task specific in this city's “gentrification project.”  相似文献   

11.
In the global neoliberal ecological discourse, trophy hunting proponents often articulate the economic benefits it creates for local communities, especially through jobs and meat. Trophy hunting revenues are also crucial to support the overall operational costs of community-based natural resource management (CBNRM). The aim of this paper is to show that this rather simplified dominant discourse, based only on “benefits”, sells short the local realities of the Khwe and Ju/’hoansi Bushmen (San) in the Bwabwata National Park and the Nyae Nyae Conservancy, Namibia, respectively. Building on Gibson, I use the concept of “social affordances” as an addition to economic benefits. This leads me to argue for an expansion of the debate beyond the limits of economic benefits to the human domain, to better understand the multiple experiences, perceptions, power relations and meanings (for good and ill) of local actors on trophy hunting and its main players.  相似文献   

12.
In comparison to other advanced economies, the rise of people living alone in Japan has been late and rapid, with singletons now accounting for almost half of all households in major cities. The normative and structural frameworks surrounding standard family-household formation, however, remain formidable, reducing life-course opportunities for non-family formers. This paper considers the household and housing pathways being negotiated by younger-adults living independently. In addition to various secondary data sources, we draw on qualitative interviews with 35 individuals from 28 Tokyo households in addressing manifestations of, and resistance to, atomisation and individualisation in the Japanese context. Our analysis focuses on meanings and practices of homemaking among renters and buyers in the growing sector of single-person dwellings, as well as the recent emergence of commercial shared housing . This analysis provides a contrast to discourses surrounding the “singles boom” and “the growing appeal of living alone” in Western cities.  相似文献   

13.
内蒙古生态承载力评价及生态安全格局优化   总被引:2,自引:0,他引:2  
冯琰玮  甄江红  马晨阳 《地理研究》2021,40(4):1096-1110
生态安全水平对区域发展的约束作用不断增强,构建科学合理的生态安全格局可以有效缓解经济发展与环境保护之间的矛盾.以内蒙古自治区为研究区,2000年、2005年、2010年、2015年为间断点,建立区域生态承载力评价指标体系,探讨生态承载力时空演变特征;甄别生态优势斑块,结合自然保护区等重要生态斑块组建生态源地,建立生态源...  相似文献   

14.
评析西方城市土地利用的理论研究   总被引:46,自引:7,他引:46  
刘盛和  吴传钧  陈田 《地理研究》2001,20(1):111-119
综述了西方城市土地利用理论研究的最新进展,较深入地评析了各种研究方法与理论派系的独到功力及其局限性。并结合中国城市土地利用的研究进展,提出今后应加强城市土地利用区位经济的理论与实证研究及城市土地开发过程的政治经济分析  相似文献   

15.
以曲沟镇多期高清遥感影像、问卷访谈及大量一手数据为基础,综合运用参与式农村评估(PRA)、GIS空间分析及土地利用转型矩阵等方法,剖析了研究区1991-2017年“三生”空间格局演变及驱动因素,对引导其“三生”空间协调发展有重要的现实意义。结果显示:① 研究期内,以工矿用地为主的建设用地增量显著,总体呈现高速扩展、局部集聚及多样化发展态势;② 生产空间由农业为主转变为农业与工业两强并存,工业生产空间嵌入到农业生产空间中形成“马赛克”式格局;③ 生活空间演变呈现空间扩展与质量提升并存的趋势;④ 生态空间的变化则具备面积缩减与质量下降2个特征;⑤ 工业镇“三生”空间的演变过程,是乡村能人带动、产业结构演变、路径依赖累积、政府宏观调控及综合地理条件约束等内外因素综合作用的结果。  相似文献   

16.
It is commonly assumed that the development of tourist attractions, the formulation of tourism policies, and the marketing of destination areas are dictated by the needs and interests of foreign visitors. What is ignored is the role that local factors and agencies play in these processes. This paper explores the way local and non-local factors are responsible for shaping the form and function of tourism development. Drawing upon the case of Singapore, I examine the country's heritage tourism phenomenon as the outcome of “local” and “global” forces. This argument is elaborated along three lines of enquiry. They include: (a) a study of the government's tourism policies; (b) an examination of marketing and promotional strategies; and (c) a look at a particular urban landscape—the Little India Historic District. To conceptualize the global-local nexus, the paper embraces two bodies of theory. They are the “locality concept” advanced by industrial geographers in the 1980s, and writings on “globalism/localism” by cultural/economic geographers in the 1990s. Both theoretical discussions reinforce the argument that place uniqueness need not be sacrificed as a result of globalization. They also provide a way of viewing tourism geographies as the product of global and local forces.  相似文献   

17.
基于地理尺度的中国人居环境研究进展   总被引:1,自引:0,他引:1  
对国内人居环境的地理尺度进行了新的划分,主体分为现实人居环境、意象人居环境和拟态人居环境(即“三态”),采用“主观文献归纳+客观文献计量”的方法对地理尺度视角下的人居环境内容、数据和方法等进行评述与展望。① 研究内容趋向综合集成化、新人地关系“广深化”和尺度交叉化等;② 研究数据表现出质度和量度的优化态势、多源数据的时空融合趋势和“小数据+大数据”的组合互补方向等;③ 研究方法体现在质性研究的更新化、计量模型的丰富化和“大数据智能分析+小数据抽样调查”的聚合化等。未来,国内人居环境研究应深化“一横+一纵”的逻辑分析原则,横向尺度关注居住、工作、交通、游憩等不同人类活动的时空特征,纵向尺度关注现实人居环境、意象人居环境及拟态人居环境融合趋势下人类聚居的深层结构,围绕着“三态”人居行为逐步完善为多视角、多领域和系统综合的学科群组。  相似文献   

18.
The scale and severity of property crashes following the global financial crisis has made vacancy a more visible and politically significant feature of cities. Although research has focused on urban experiments in vacant spaces, there has been less emphasis on how the contested property relations around vacancy remake urban governance. In this paper, we argue that debates about vacancy have been a central concern in post-crisis urban governance. In the first part of the paper we draw two conceptual approaches into a dialogue and apply them to an analysis of vacant space: that of Nicholas Blomley on property and Elizabeth Povinelli on “alternative social projects”. In the second part of the paper, we critically analyse how three groups discursively construct the need to “activate” and “re-use” vacant spaces in Dublin: grassroots groups, urban policy-makers, and financial actors. We argue that governing vacancy will be a key feature of post-crisis urbanisation.  相似文献   

19.
The notion of the “urban experiment” has become increasingly prevalent and popular as a guiding concept and trope used by both scholars and policymakers, as well as by corporate actors with a stake in the future of the city. In this paper, we critically engage with this emerging focus on “urban experiments”, and with its articulation through the associated concepts of “living labs”, “future labs”, “urban labs” and the like. A critical engagement with the notion of urban experimentation is now not only useful, but a necessity: we introduce seven specific areas that need critical attention when considering urban experiments: these are focused on normativity, crisis discourses, the definition of “experimental subjects”, boundaries and boundedness, historical precedents, “dark” experiments and non-human experimental agency.  相似文献   

20.
基于民本动力的生产模式驱动,产业集聚与人居增长在乡村地理空间上高度复合,“产居一体”成为乡村区域建设与可持续发展的重要路径。以浙江碧门村为实证,阐释乡村“产居一体”的现象特征、演进机制及影响因素,并“自下而上”地建构空间图谱,整合与评价其范式组织及空间绩效。结果表明:① 碧门村的“产居一体”演进具有明显的阶段性特征,生产调整、精英引领、配套支持、政府干预构成了主要驱动机制;② 碧门村“产居一体”微观单元范式多样,具有下产上居、前产后居、庭院工坊、产居独立四种模式,在空间上的效仿、协同与竞争,形成宏观的“产居一体”空间图谱格局;③ 青山村、中心村与黄浒沿的“产居一体”空间图谱特征差异显著,分别呈现核域式聚集、轴线式延展、散点式分布的增长与分布规律。由此,提出“产居一体”驱动下的组团协作、精明指标、级差布局的导控机制,以期为规划实践提供具有可操作性的理论支持。  相似文献   

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