试论延吉城市旅游形象设计

在延吉城市旅游形象的诸要素中,民俗要素最为重要,因此,在对延吉城市旅游形象进行定位时,无论是从延吉城市形象的硬件上(如交通、餐饮),还是在城市旅游形象的软件上(如市民素质、民俗民风等方面),都要突出民俗特色,同时要用多种形式大力宣传。     

Spatial variation in soil inorganic nitrogen across an arid urban ecosystem

We explored variations in inorganic soil nitrogen (N) concentrations across metropolitan Phoenix, Arizona, and the surrounding desert using a probability-based synoptic survey. Data were examined using spatial statistics on the entire region, as well as for the desert and urban sites separately. Concentrations of both NO₃-N and NH₄-N were markedly higher and more heterogeneous amongst urban compared to desert soils. Regional variation in soil NO₃-N concentration was best explained by latitude, land use history, population density, along with percent cover of impervious surfaces and lawn, whereas soil NH₄-N concentrations were related to only latitude and population density. Within the urban area, patterns in both soil NO₃-N and NH₄-N were best predicted by elevation, population density and type of irrigation in the surrounding neighborhood. Spatial autocorrelation of soil NO₃-N concentrations explained 49% of variation among desert sites but was absent between urban sites. We suggest that inorganic soil N concentrations are controlled by a number of ‘local’ or ‘neighborhood’ human-related drivers in the city, rather than factors related to an urban-rural gradient.     

城市森林效益与可持续性研究展望

正确认识城市森林的功能和效益 ,探索不同管理措施对城市森林效益的影响 ,对实现城市森林的可持续性具有十分重要的意义。本文综述了城市森林对生态环境和生态过程产生的影响及生态和社会效益 ;分析了城市森林可持续性的内涵及特征 ;对城市森林可持续性模式及评价标准、城市森林生态学等领域的研究成果和发展方向进行了归纳分析。在分析目前我国城市生态环境面临的问题的基础上 ,进一步提出城市森林是构建城市绿色空间的主体。建设可持续城市森林是实现城市经济和环境可持续发展的重要途径。     

善治理论与中国地方治理

地方治理意味着地方政府从中央一体化的垂直结构下抽身,确立自身的独立地位与利益;同时,它也表征着民间社会力量的成长并逐步参与地方公共事务,成为地方治理中重要的参与性力量。在此意义上,善治理论提供了具有借鉴意义的理论框架和分析范式。但是,处于转型期的中国社会,在用善治理论观照中国地方治理时,其前提和基础条件的具备与否是受到质疑的,从而,这一分析框架的适用性也是有限的。     

城市公众安全文化教育的方法与思路——兼议北京2008“安全奥运文化”普及问题

通过对安全文化发展演变历史的简单回眸,探讨了适用于城市安全减灾的安全文化教育的模式及方法,尤其从文化建设层面上研究了应用安全文化建设方法的特点。作为最现实的应用,还就2008年北京“安全奥运”的系统化建设提出了“安全奥运文化”普及教育的思路。     

中国古代城市文学研究的文学史意义

研究中国古代城市文学的文学史意义在于，从空间视角重新认识和研究古代文学，充分发掘和利用长期以来被忽略的城市文学资源。有助于建构起时空并置、更加完整和系统的中国古代文学史。此外，研究中国古代城市文学还可以为当代文学史研究提供一个广阔的历史视野与意蕴深厚的历史文本。     

马克思市民社会理论再析——马克思人类解放思想与我国和谐社会的建立

马克思市民社会理论是对黑格尔市民社会理论的批判与超越,其价值指向是人类解放。马克思的人类解放思想对我国目前创建社会主义和谐社会具有理论与实践的双重指导意义。     

Silphids in urban forests: Diversity and function

Many ecologists have examined the process of how urbanization reduces biological diversity but rarely have its ecological consequences been assessed. We studied forest-dwelling burying beetles (Coleoptera: Silphidae)—a guild of insects that requires carrion to complete their life cycles—along an urban-rural gradient of land use in Maryland. Our objective was to determine how forest fragmentation associated with urbanization affects (1) beetle community diversity and structure and (2) the ecological function provided by these insects, that is, decomposition of vertebrate carcasses. Forest fragmentation strongly reduced burying beetle diversity and abundance, and did so far more pervasively than urbanization of the surrounding landscape. The likelihood that beetles interred experimental baits was a direct, positive function of burying beetle diversity. We conclude that loss of burying beetle diversity resulting from forest fragmentation could have important ecological consequences in urban forests.     

城市规划公众参与初探

在公众参与城市规划理念产生背景的基础上,简要回顾了国外公众参与理论,介绍了我国公众参与的影响因素及现状,提出了公众参与实现的三个方面的转变及公众参与的三个促进机制,论述了公众参与存在的几个问题及应对措施.     

土地开发决策模式与城镇发展——近代英国海滨休闲城镇的启示

近代英国海滨休闲城镇的发展在很大程度上受到土地开发模式的影响和制约 ,不同时期的决策主体 (地主、“改善委员会”和市政当局等 )对土地开发的自发或自觉的决策 ,显示了他们把握机遇的准确程度 ,从而决定了海滨休闲城镇的发展趋向 :起初处于“自发”状态 ;铁路时代则以利用大片土地进行铁路与车站建设为关键 ;后期 ,市政府能否顺应时代、积极有效地介入城镇建设至关重要。有鉴于此 ,在我国城市化过程中应注意城镇土地开发 ,进行系统规划 ,避免无序开发 ,尤其不能听任开发商的“自发”行为 ,这样才能在我国建成一批功能各异、各具特色的生态城镇