高新技术产业开发区与城市社会空间结构演变

高新区作为一个崭新的城市空间和带动城市经济社会发展的重要极核,越来越多地影响和改变着城市的经济社会活动和空间结构。本文从高新区作为城市一个功能单元的空间属性出发,分析了高新区建设发展对城市社会新富裕阶层和中等收入阶层形成的重要影响;进而分析了高新区建设发展对城市社会空间分异的影响,指出高新区正在逐步演变成为一个集商务、技术创新、高新技术产业发展、高尚生活区为一体的新的城市空间;最后,本文还简单分析了高新区建设发展带来的城市社会空间的矛盾与冲突。     

内群体交往对开发区拆迁安置社区居民社区感的影响研究——以昆山经济技术开发区周边X社区为例

开发区周边主要聚居着本地失地农民和外来普通劳动力,可能存在的内群体交往倾向会制约这两类居民间的平等、正常交往。为此,本文主要结合对昆山经济技术开发区周边X社区居民的调研,重点考察了内群体交往倾向对居民社区感的影响。研究表明,开发区周边居民确实存在内群体交往的倾向,这使其社区感水平普遍不高;而归因于征地拆迁中的复杂矛盾,本地居民的群体的内部交往对其社区感有消极影响,但外来人口的内部交往因为有助于增强其适应新地方的能力,对社区感建构有积极影响。由此,建议既要促进两类群体之间的交往,也要关注本地居民之间以及外来人口之间的利益协调,以普遍提升其社区感。     

Modeling thermal convection in supradetachment basins: example from western Norway

The juxtaposition of fault‐bounded sedimentary basins, above crustal‐scale detachments, with warmer exhumed footwalls can lead to thermal convection of the fluids in the sediments. The Devonian basins of western Norway are examples of supradetachment basins that formed in the hanging wall of the Nordfjord‐Sogn Detachment Zone. In the central part of the Hornelen and Kvamshesten basins, the basin‐fill is chiefly represented by fluvial sandstones and minor lacustrine siltstones, whereas the fault margins are dominated by fanglomerates along the detachment contact. Prominent alteration and low‐greenschist facies metamorphic conditions are associated with the peak temperature estimates of the sediments close to the detachment shear zone. Fluid circulation may have been active during the burial of the sediments, and we quantify the potential role played by thermal convection in redistributing heat within the basins. Different models are tested with homogeneous and layered basin‐fill and with material transport properties corresponding to sandstones and siltstones. We found that thermally driven fluid flow is expected in supradetachment basins as a transient process during the exhumation of warmer footwalls. We demonstrate that the fluid flow may have significantly affected the temperature distribution in the upper five kilometers of the Devonian basins of western Norway. The temperature anomaly induced by the flow may locally reach about 80°C. The sedimentary layering formed by sand‐ and siltstones strata does not inhibit fluid circulation at the scale of the basin. The presence of fluid pathways along the detachment has an important impact on the flow and allows an efficient drainage of the basin by channelizing fluids upward along the detachment.     

做一名科研型的小学教师

随着基础教育改革的不断深入,要求教师以研究者的姿态出现在学校的舞台上。教师参与教育科研可以提高教师的素质,使教师在实践中锻炼,在改革中成长。     

Evolution of deformation and fault‐related fluid flow within an ancient methane seep system (Eocene,Varna, Bulgaria)

Faults are often important in fuelling methane seep systems; however, little is known on how different components in fault zones control subsurface fluid circulation paths and how they evolve through time. This study provides insight into fault‐related fluid flow systems that operated in the shallow subsurface of an ancient methane seep system. The Pobiti Kamani area (NE Bulgaria) encloses a well‐exposed, fault‐related seep system in unconsolidated Lower Eocene sandy deposits of the Dikilitash Formation. The Beloslav quarry and Beloslav N faults displace the Dikilitash Formation and are typified by broad, up to 80 m wide, preferentially lithified hanging wall damage zones, crosscut by deformation bands and deformation band zones, smaller slip planes and fault‐related joints. The formation of a shallow plumbing system and chimney‐like concretions in the Dikilitash Formation was followed by at least two phases of fault‐related methane fluid migration. Widespread fluid circulation through the Dikilitash sands caused massive cementation of the entire damage zones in the fault hanging walls. During this phase, paths of ascending methane fluids were locally obstructed by decimetre‐thick, continuous deformation band zones that developed in the partly lithified sands upon the onset of deformation. Once the entire damage zone was pervasively cemented, deformation proceeded through the formation of slip planes and joints. This created a new network of more localized conduits in close vicinity to the main fault plane and around through‐going slip planes. ¹³C‐depleted crustiform calcite cements in several joints record the last phase of focused methane fluid ascent. Their formation predated Neogene uplift and later meteoric water infiltration along the joint network. This illustrates how fault‐related fluid pathways evolved, over time, from ‘plumes’ in unconsolidated sediments above damage zones, leading to chimney fields, over widespread fluid paths, deflected by early deformation structures, to localized paths along fracture networks near the main fault.     

Claiming Space: Aboriginal Students within School Landscapes

There is an emerging body of theoretical, historical and design research that examines the ways in which race and cultural identity are understood to be produced and represented in the landscape. Yet, there remains a dearth of research examining both the historic and contemporary effects of race upon the development of school geographies. This paper has two broad purposes. It highlights the experiential aspects of racialized geographies within schools and, at the same time, it grapples with the processes that maintain or challenge the spatial conditions for the construction of whiteness. Drawing upon in-depth case study research this paper highlights the experiences of Aboriginal students and staff at four different schools, with a particular focus on cross-cultural schools, in Manitoba, Canada.

What is needed is a concept of landscape that helps point the way to those interventions that can bring about much greater social justice. And what landscape study needs even more is a concept of landscape that will assist the development of the very idea of social justice. (Henderson, 2003, p. 196)     

崇明岛生态游憩区开发及产品设计

随着都市生活环境的恶化、交通运输的改善以及闲暇时间的增多,人们对都市的游憩需求发展迅速。基于对游憩和生态旅游概念及内涵的理解,本文对都市生态游憩进行了界定,探讨了崇明岛建设生态游憩区应遵循的原则,并对崇明岛生态游憩开发及产品设计进行了研究。     

博物馆文物保存环境质量标准研究

我国大气污染严重,环境质量恶化使文物受损影响日益明显。上海、重庆、广州三市博物馆环境质量检测调查说明其现状与文物保护的要求还有相当距离,有些甚至还处于污染相当严重的地步。博物馆文物保存环境影响因素主要是温湿度、光线(可见光、紫外光)、污染气体(包括尘埃),不同材质的文物受各种环境因素影响在程度上是不同的。有的是起主要作用,有的则是起协同增效作用。研究其反应机理、反应速率,量化它们之间的关系,将是制定出文物保存环境质量标准的重要依据。 文物保存环境质量标准要求达到最大限度降低环境因素对文物所造成的损害,但受治理技术、监测技术、经济的许可、合理程度等方面的制约,制定分级标准将有利博物馆的环境治理实施和监测。     

区际综合运输通道空间结构研究——以内蒙古东部地区与东北三省为例

随着《东北地区振兴规划》的实施,由内蒙古东部地区与东北三省构成的新东北经济区区际联系不断增多,双方对功能完善的综合运输系统需求日益增强。本文采用定性与定量相结合的研究方法,通过分析区际运输通道空间结构现状及客、货流未来发展特点,遵循交通运输与区域经济发展良性互动原则,提出建设6条运输通道与15个二级运输枢纽为骨架,3条运输干线为辅助的网格状区际综合运输通道空间结构,并指出在改善铁路、公路运输方式的同时,要积极开展油气及煤化工产品的管道运输,发挥多种运输方式综合优势,促进区域协调发展。     

关于我国核电发展与设立核电站布局“禁区”的思考

本文系统地阐述了我国核电站近十多年来呈现出大规模发展的态势。认为从我国的具体国情出发，需要在全国部分人口与经济密集、大中城市相对比较集中的地区设立核电布局的“禁区”。渤海沿岸是国家的政治核心与经济枢纽，渤海及其附近区域核污染关系到国家的安全。本文着重分析了渤海沿岸地带核电站发展的情况，并且认为渤海沿岸地带应该成为国家最主要的核电“禁区”，根据我国核电站发展的态势，建议在“十四五”时期，我国需要对近十年来的能源政策进行调整，要充分考虑到中国国情与国家利益，审视其可行性与合理性。在“核电绝对安全”的神话一再被破灭的情况下，重新调整核电发展方针，实行总量控制乃至逐步减少。