珠江三角洲传统聚落公共空间体系特征及意义探析——以明清顺德古镇为例

珠江三角洲传统聚落公共空间按性质不同可分为政治性公共空间、生产性公共空间和生活性公共空间三类。多种多样的公共空间满足了宗教、商业、生活等功能的需要,凸显了地域、文化、形态等方面的特征,蕴涵着深层次的文化含义,在珠江三角洲传统聚落中发挥着极为重要的作用,往往成为聚落的形态中心和精神中心,成为当地群众日常交往的重要场所。     

全球化语境中的中国城市与建筑发展策略

本文通过对物质与非物质领域中全球化对城市与建筑的影响和现状问题的分析,提出要用正确态度对待全球化,加强对传统与文化的研究,继承和发展地域文化,正确认识和对待城市宽容性和对公众、城市开发及管理者的普及教育及完善和控制设计过程即提高设计质量等的发展建议。     

Multiple evaluations of the removal of pollutants in road runoff by soil infiltration

Groundwater replenishment by infiltration of road runoff is expected to be a promising option for ensuring a sustainable urban water cycle. In this study, we performed a soil infiltration column test using artificial road runoff equivalent to approximately 11-12 years of rainfall to evaluate the removal of pollutants by using various chemical analyses and bioassay tests. These results indicated that soil infiltration treatment works effectively to remove most of the pollutants such as organic matter (chemical oxygen demand (CODMn) and dissolved organic carbon (DOC)), P species, polycyclic aromatic hydrocarbons (PAHs), numerous heavy metals and oestrogenic activities. Bioassay tests, including algal growth inhibition test, Microtox and mutagen formation potential (MFP) test, also revealed effective removal of toxicities by the soils. However, limited amounts of NO3, Mn, Ni, alkaline earth metals, perfluorooctane sulphonate (PFOS) and perfluorooctane sulphonamide (FOSA) were removed by the soils and they possibly reach the groundwater and cause contamination.     

城市生态居住社区环境研究

城市生态居住社区是城市生态建设的重要组成部分,其环境建设对社会可持续发展具有重要意义。论文阐述了城市生态居住社区的内涵和建设目标,提出了当前我国城市生态居住社区物质环境建设中的规划设计和住宅设计策略,并对城市生态居住社区的发展进行了展望。     

明清漕运与通州城市建设研究

该文通过论述明清通州仓、城市变迁、城市主要道路以及桥梁等与漕运的关系,说明漕运对明清通州城市建设的重要作用。     

从合肥市湿地资源现状调查结果看城市湿地保护的规划策略

湿地是“地球之肾”, 人类社会赖以持续发展的重要生态资源。随着我国城市化进程的不断推进,城市湿地资源的生态安全和自然格局受到严重威胁,亟待从城市规划角度加以控制和保护。本文基于合肥市湿地资源现状调查结果,通过分析湿地资源现状保护存在的问题,对于如何保护与合理利用城市湿地资源提出了规划对策,对进一步探讨和完善快速城市化进程中的湿地保护机制具有重要的现实意义。     

城市绿地分类标准的实践修正

通过分析现行的行业标准《城市绿地分类标准CJJ/T 85-2002》在实践中出现的问题与矛盾，诸如绿地划分依据不统一、统计计算重复、校核和评价困难、管理不便等，以安徽省六安市绿地系统规划为例，结合城市绿地规划设计和管理控制的实践需求，在建立城市绿地属性表和绿色空间数据库的有益尝试的基础上，对城市绿地分类标准进行实践修正，以期对此标准进行优化和补充，从而更好地指导城市绿地的规划设计建设和管理。     

Effect of building integrated photovoltaics on microclimate of urban canopy layer

Building integrated photovoltaics (BIPV) has potential of becoming the mainstream of renewable energy in the urban environment. BIPV has significant influence on the thermal performance of building envelope and changes radiation energy balance by adding or replacing conventional building elements in urban areas. PTEBU model was developed to evaluate the effect of photovoltaic (PV) system on the microclimate of urban canopy layer. PTEBU model consists of four sub-models: PV thermal model, PV electrical performance model, building energy consumption model, and urban canyon energy budget model. PTEBU model is forced with temperature, wind speed, and solar radiation above the roof level and incorporates detailed data of PV system and urban canyon in Tianjin, China. The simulation results show that PV roof and PV façade with ventilated air gap significantly change the building surface temperature and sensible heat flux density, but the air temperature of urban canyon with PV module varies little compared with the urban canyon of no PV. The PV module also changes the magnitude and pattern of diurnal variation of the storage heat flux and the net radiation for the urban canyon with PV increase slightly. The increase in the PV conversion efficiency not only improves the PV power output, but also reduces the urban canyon air temperature.     

塑造富有个性的城市公共空间——以宿迁市项王故里规划设计为例

城市公共空间是城市生活的核心,如何准确认识城市公共空间的作用并塑造良好的城市公共空间成为当前规划设计界的重要课题.宿迁市项王故里详细规划提出了一系列以建设富有个性的城市公共空间为最终目标的城市设计方法,如深入挖掘历史文化资源,整合现状公共空间、将特色空间资源与公共空间体系相结合等.     

Contribution of trace metals from atmospheric deposition to stormwater runoff in a small impervious urban catchment

The contribution of atmospheric deposition to emissions of trace metals in stormwater runoff was investigated by quantifying wet and dry deposition fluxes and stormwater discharges within a small, highly impervious urban catchment in Los Angeles. At the beginning of the dry season in spring 2003, dry deposition measurements of chromium, copper, lead, nickel, and zinc were made monthly for 1 year. Stormwater runoff and wet deposition samples also were collected, and loading estimates of total annual deposition (wet+dry) were compared with annual stormwater loads. Wet deposition contributed 1-10% of the total deposition inside the catchment, indicating the dominance of dry deposition in semi-arid regions such as Los Angeles. Based on the ratio of total deposition to stormwater, atmospheric deposition potentially accounted for as much as 57-100% of the total trace metal loads in stormwater within the study area. Despite potential bias attributable to processes that were not quantified in this study (e.g., resuspension out of the catchment or sequestration within the catchment), these results demonstrate atmospheric deposition represents an important source of trace metals in stormwater to waterbodies near urban centers.