城市公共空间中的危险性辨识

从城市公共空间的概念入手,对城市公共空间中的道路设置、铺装设置、公共设施以及植物配置方面存在的危险、有害因素进行分析、辨识;通过这个总结性研究有助于提出合理可行的设计方案,对有效地预防事故发生,减少财产损失和人员伤亡、伤害,降低事故发生率,具有很好的借鉴作用。     

2010世博会:上海城市发展的重要契机——法国巴黎八届世博会的借鉴

2010年上海世博会主办权的取得,具有相当重要的历史性意义,中国开启了向世界展示其独特魅力的崭新舞台。本文通过对八届巴黎世博会的解读,分析巴黎世博会的举办对城市发展的意义,探讨在2010年上海世博会的背景下,推动上海城市未来发展的思路,希望对上海城市的未来发展在理念上能够有所裨益。     

基于遥感的北京城区水体悬浮物浓度监测

利用2011年6月8日同步获取的地面实测数据与TM遥感影像,以北京城区重点水体为研究对象,探讨利用卫星遥感数据定量反演夏季城市湖泊悬浮物浓度的可行性与方法。在对遥感影像进行大气校正的基础上,通过相关性分析选择最佳反演波段,并利用经验方法建立基于TM多光谱影像的定量反演模型;通过2008—2009年4景TM影像及人工准同步测量的地面数据,对模型的精度及适用性进行分析。结果表明,模型在春季具有较好的适用性,相对误差为25.06％,接近太湖等大江大湖先进反演模型的精度。     

城市老工业区产业转型研究进展与评述

为了全面了解国内外学者对城市老工业区产业转型问题的研究,厘清城市老工业区产业转型方面的现状与进展,本文围绕城市老工业的类型与特点、产业衰退原因、产业转型内容和方向、主导产业选择、产业转型路径等各方面进行了全面回顾总结．在此基础上,对目前城市老工业区产业转型进展情况进行评述,提出了下一步研究需要关注的重点方面．     

城市古典商业街区可持续发展研究

从仿古街区的不断改进,到城市古典商业街区的兴起,都是我国都市旅游发展的必然结果．作为商、旅、文结合的特殊角色,城市古典商业街区同时具有丰富的历史文化和繁荣的现代商业,因此极具现实意义．文中在阐述城市古典商业街区基本理论的基础上,以城市辐射和业态影响为落脚点,找寻当前普遍存在的问题;并以苏州平江路为成功案例,探讨其发展模式和发展路径,以期对中国的城市古典商业街区提出富有价值的参考性建议．     

应用MODIS资料对城乡地表热通量的估算

为了揭示城市热岛形成机制,基于MODIS资料,结合自动气象站实测的气象资料,利用地表能量参数化方法估算了地表热通量,分析了城乡地表热通量的空间分布及变化特征.结果表明城乡地气热交换差异明显,与相关文献对比证明该方法是可行、有效的.     

城区内河水环境的生物治理——以池州市清溪河为例

对清溪河污染的治理,可以采用一系列理化的方法,但相比之下,利用生物治理不仅操作简便,成本低廉,而且能很好的修复水生生态系统的结构,达到良性循环的效果。驳岸的植物是一道屏障,能有效阻止和减少地表污染物进入水体,水中微生物将有机态的污染物转化为无机养份被植物吸收,植物为水中的微生物提供附着表面,而草食性鱼类能抑制植物的过渡生长,最终实现生态系统的重建与修复,使河道进入可持续发展的良性循环体系。     

Factors determining informal tanker water markets in Chennai,India

Many developing world cities have seen the emergence of informal markets where private tanker truck operators transport water extracted from peri-urban wells to urban consumers. This study adopted a systems-modelling approach to analyzing the informal tanker market in India. The results indicate that the demand for tanker supply was caused by lack of groundwater availability in private wells as well as unreliable piped supply. The study shows that two groundwater factors are relevant: depth to water and aquifer productivity. Together, these could explain the difference in spatial, temporal and consumer-specific variations in tanker dependence.     

A socioeconomic model for managing water resources in Alicante,southeast Spain

The study analyzes variables that influence the water management model based on a simultaneous relationship between competing demands in the Marina Baja of Alicante, using a methodology that directly links together urban and irrigation demands, making them relevant to each other from a socioeconomic point of view. The paper identifies the relevant variables of this model and the agent behaviour in a closed and joint system. It also aims to demonstrate that by considering water demands for different yet simultaneous uses and regarding clean and reclaimed waters as integrated resources, the system could remain in equilibrium without external water supplies.     

Water and Sustainable Development in Ghana

Abstract

Water is vital for the survival and development of every community or society. The health of a given community is reflected to a large extent in the water quality of the community's available water resources. In Ghana, efforts have been made since colonial days to supply both the urban and the rural communities with potable water to enhance the rapid socio-economic development of the country. It is economically viable due to the remoteness of most of the rural communities to supply them with potable water from local sources such as groundwater. The urban water supply systems are mainly based on surface water sources. With the ever-expanding population, there is a need to improve freshwater resources conservation and management in order to avoid impending shortages. To ensure the total coverage of all rural and urban communities by the year 2020, a huge capital outlay of $1 billion and 51.5 billion, respectively, is needed. Most of these funds are expected to come from the private sector, both local and foreign, with the Government making some substantial contribution.