泛珠三角区域合作中各方利益的差异与协调

泛珠三角地区的经济合作，由于该地区市场主体不同，必然存在着多元化利益冲突，共同利益是区域经济合作的动力．但利益冲突的存在往往阻碍了合作的有效运行。本文特就该地区各方利益的差异进行了探讨，在分析原因的基础上提出协调解决的办法。     

大沽排污河沉积物中重金属的分布特性研究

通过对大沽河上、中游及其支流44个点位沉积物的采样及检测，分析了沉积物中重金属（Cu、Pb、Zn、Cd、Cr、Ni、Hg、As）的分布特点及相关关系。结果显示，大沽河上、中游的沉积物中重金属含量之间存在着相关关系，部分沉积物中重金属含量超标，河床中部沉积物的厚度最大，而在河床两侧重金属含量出现极值，这为河道疏浚及河床断面设计提供了参考。     

Learning from the extreme River Tyne flood in January 2005

Extreme floods often demonstrate unanticipated characteristics that pose problems for management and response. The floods on the Tyne and Eden in January 2005 provided numerous examples of such unexpected response. This paper describes characteristics of storm rainfall and runoff generation on the River Tyne catchment, flood effects and damage. Unusual aspects of hydrological behaviour are highlighted as a basis for assessing what lessons can be learned for flood risk management. These include problems associated with coincidence of extreme wind speeds and rainfall, the retarding influence of floodplain storage on flood wave travel time in extreme flows, the influence of critical storm duration on the severity of the resulting flood on headwaters and main river, and the variety of mechanisms of flood occurrence. The occurrence of such an extreme flood provides the opportunity to validate and enhance the review process of the Environment Agency's flood zone maps.     

人本视角下滨水公共空间活力评估与 调控研究——以上海黄浦江核心段为例

在“人民城市”建设的背景下，基于人本视角，以 人的活动体验为切入点，综合考虑空间使用情况与网络信息流 的作用，从多样性、聚集性、稳定性和关注度4个维度构建滨 水公共空间活力评价体系，探索基于使用者拥挤感知评价测定 “空间活力阈值区间”的方法。将网络大数据与实地调研数据 相结合，定量测度上海黄浦江核心段滨江公共空间的活力，分 析其时空分布特征；总结场地设施、城市腹地、管理宣传3个 方面的空间活力影响因素，并基于活力分布不均衡的现状，提 出疏导与提升、分区段与分阶段建设管理等活力调控策略，以 期为城市滨水公共空间活力评估与调控提供有益借鉴。     

Water and Wastewater Minimization: the Aire and Calder Project

The reduction of the waste of raw materials at source using clean technologies, recycling, and good housekeeping has considerable benefits for both the environment and industry. A demonstration project on wastewater minimization was completed in 1995 in the Aire and Calder catchments of West Yorkshire. The findings indicated cost savings for eleven firms of over $3 million/annum and further opportunities which, when implemented, could realize another $1 million/annum. The reduction in the amount of wastewater discharged either to sewer or river was 27%, with a potential to increase to over 40%. The payback period for 63% of the waste minimization opportunities is less than one year and many involve only a small initial investment. Waste minimization when widely adopted has prospects for cutting industry's costs, reducing demand for water and reducing the volume of effluent produced.     

草原人居环境保护与发展三元论 ——以新疆伊犁河谷为例

坚守"山水林田湖草是一个生命共同体"的理念,聚焦伊犁河谷草原人居环境背景资源、活动方式、规划建设的三元一体,将草原人居环境作为三元互动、不断成长的生命体,尝试寻找一种构建荒野、乡村、城市共存融合的草原人居环境保护与发展模式。以客观规律为依据,以主观需求为准绳,寻找及保留草原人居环境演化中相对稳定不变的基因,构建草原人居环境CVA三力评价体系,建立草原人居环境发展CVA量化模型,以求指导草原人居环境未来的保护与发展。推行这种模式不仅可为中国西部地区提供生态安全保障,也将使伊犁河谷成为多种人居环境生命共同体的典范。     

珠江三角洲城市水系统的可持续性评价

环境可持续性评价是规划建设可持续城市水系统的基础。为此，运用基于社会水循环的城市水系统环境可持续性评价方法，遴选了一组测评城市水系统环境可持续性的指标体系，并应用其对珠江三角洲地区城市水系统的环境可持续性进行了系统评价。结果表明：污(废)水处理率处于脆弱等级，提高污(废)水处理率应是珠江三角洲地区各城市维护其水系统环境可持续性的工作重心。     

Synthetic musk emissions from wastewater aeration basins

Wastewater aeration basins at publicly owned treatment works (POTWs) can be emission sources for gaseous or aerosolized sewage material. In the present study, particle and gas phase emissions of synthetic musks from covered and uncovered aeration basins were measured. Galaxolide (HHCB), tonalide (AHTN), and celestolide (ADBI) were the most abundant, ranging from 6704 to 344,306 ng m⁻³, 45-3816 ng m⁻³, and 2-148 ng m⁻³ in the gas phase with particle phase concentrations 3 orders of magnitude lower. The musk species were not significantly removed from the exhaust air by an odor control system, yielding substantial daily emission fluxes (∼200 g d⁻¹ for HHCB) into the atmosphere. However, simple dispersion modeling showed that the treatment plants are unlikely to be a major contributor to ambient air concentrations of these species. Emission of synthetic musk species during wastewater treatment is a substantial fate process; more than 14% of the influent HHCB is emitted to the atmosphere in a POTW as opposed to the <1% predicted by an octanol-water partition coefficient and fugacity-based US EPA fate model. The substantial atmospheric emission of these compounds is most likely due to active stripping that occurs in the aeration basins by bubbling air through the sludge.     

构建“深港双城”,成就大珠三角

香港回归祖国10余年来,经历了巨大的变迁,当前也面对一系列的挑战和机遇。本文回顾了深港合作的历程,通过对区域合作、跨界治理理论以及欧盟空间一体化实践的借鉴,总结深港两地在规划内容、规划过程、规划实施三个方面构建"深港双城"的路径,揭示城市规划作为空间策略,为实现大珠三角地区的区域合作与跨界治理提供了有效的协调机制,为"一国两制"背景下深港两地的共同发展与持续繁荣提供了重要保障。     

Delayed influence of dam storage and discharge on the determination of seasonal proliferations of Microcystis aeruginosa and Stephanodiscus hantzschii in a regulated river system of the lower Nakdong River (South Korea)

This study presents the relationship between the dam hydrology and phytoplankton proliferations in a regulated river system in East Asia. A long-term ecological study reveals that multi-purpose dam regulation on river flow in the Nakdong River (South Korea) affects proliferating patterns of phytoplankton, especially during summer (June-August) and winter (December-next February) as Microcystis aeruginosa and Stephanodiscus hantzschii, respectively, dominate each season by over 80%. Eutrophication was observed in the lower Nakdong River (South Korea) (mean+/-standard deviation: nitrate-N, 2.8+/-0.9 mg L(-1); phosphate-P, 40.3+/-31.3 microg L(-1); chlorophyll a, 45.2+/-84.9 microg L(-1); n=449), and the limnological characteristics responded to climatic variations such as monsoon and summer typhoons. The river basin experiences concentrated rainfall during the rainy season (June-September, over ca. 60% of total annual rainfall). Correlation and cross-correlation for time-delayed relationship revealed the hydrological environments (i.e., quantity of dam storage and discharge) had significantly negative relationship with the population dynamics of the two bloom-forming species for up to the next 2 years. S. hantzschii had clearer relationship with dam storage and discharge, which might be due to the seasonality exhibited by the species. The results support the necessity of "smart flow control" which may enable destruction of bloom formation by the two species with an adequate pulse of discharge generated by upstream dams in the far-east Asian river systems. This would increase the efficiency of water resource management system.