An Empirical Model of Efficiency Analysis on Flood Prevention Investment in Japan

This paper aims to evaluate the comprehensive efficiency of flood disaster prevention investment from 1955 to 1999 by developing and applying an integrated evaluation model. Our analysis results have clarified some important issues currently being discussed in Japan. Firstly, the average values of normalized flood losses decreased greatly between the 1955-1961 period and the 1984-1999 period. Secondly, the ratio of human loss to total loss caused by floods in Japan may be less than 10%, based on the concept of the value of statistical life (VOSL) and values estimated from the risk-money tradeoff. The proportion of intangible effect to total loss increased from less than 10% before the 1970s to approximately 20% after that period. Finally, flood prevention investment in Japan effectively reduced losses caused by flooding before the 1960s; however, since the 1980s, investment has changed from an efficient mode to an inefficient mode, not only from the economic standpoint, but also from that of total flood loss saving.     

骆马湖水环境变化趋势及对策研究

随着经济发展、城市化率的提高，加之滨湖开发，骆马湖的水质呈现一定的恶化趋势，生态系统遭受破坏，水体富营养化发展有越来越严重的趋势。通过对骆马湖营养化程度和污染原因的分析，提出了一些对策措施和解决办法，以期实现湖泊的生态、环境与经济的协调发展。     

关于邮政企业管理人员竞争上岗工作的思考

为做好邮政企业竞争上岗工作,调动企业和员工双方面的积极性,文章分析了邮政企业竞争上岗工作的意义,提出了竞争上岗工作中存在的问题,探讨了做好竞争上岗工作的对策。     

我国财政支农的资金效益问题研究

本文通过一系列数据对我国财政支农资金的效益进行分析得出农村居民纯收入的缓慢增长与财政支农资金的快速增加形成了明显反差,我国财政支农资金使用效益不高。针对这样的现状,分析了产生财政支农资金效益不足的原因,并提出相应措施来提高财政支农资金的使用效益。     

Experimental study of a novel hybrid constructed wetland for water reuse and its application in Southern China

A new type of hybrid constructed wetland (CW), consisting of both vertical-baffled flow wetland (VBFW) and horizontal subsurface flow wetland (HSFW), has been deployed in Southern China to naturally accelerate the removal of organic matter and nitrogen. The hybrid CW system is characterised by a combination of continuous baffled flow vertical wetland and 'S' pattern horizontal subsurface flow wetland with natural aeration ditches to increase the concentration of dissolved oxygen in the HSFW bed. An internal circulatory system from the HSFW effluent back to the VBFW may optionally be operated to enhance the biological denitrification effect. Cyperus alternifolius is the main macrophyte in the wetland bed. The performance of the hybrid CW was studied with a pilot-scale system and three full-scale systems for municipal sewage treatment in Southern China. The results suggest that this new hybrid CW can achieve removal efficiencies of chemical oxygen demand, suspended solids, ammonia nitrogen, total nitrogen, and total phosphorus of better than 83.6, 95.0, 71.7, 64.5 and 68.1% respectively, with a specific wetland bed area of 0.70-0.93 m(2) PE(-1). The mean effluent concentrations of these parameters would meet the regulatory discharge limits for wastewater treatment systems (GB18918, 2002) and reuse in the context of agricultural irrigation solutions in China.     

统筹兼顾是水资源可持续利用的根本方法——关于黑河、石羊河流域治理的思考

甘肃省十年九旱,水资源短缺,有限的水资源始终是甘肃省经济社会发展的主要制约因素。中国特色社会主义理论体系,尤其是科学发展观,为破解水问题指明了方向,提供了方法。流域治理成功的经验使水利人更加坚定信念和理念,以水资源的可持续利用支撑经济社会的可持续发展,必须坚持以人为本,走又好又快、全面协调可持续的发展道路。统筹兼顾是解决甘肃省水资源供需矛盾,协调好生活、生产、生态用水,科学制定流域治理方案,扎实推进水利工作的根本方法。     

科学发展观视角下西部资源型城市科学转型研究——以甘肃省为例

伴随着主体资源的桔竭,曾为国家和地区经济发展以及城市化进程做出了重要贡献的资源型城市,将不得不面临转型的现实选择。资源型城市的转型是一项系统工程,不仅是指资源型企业的转型,更是涉及到经济、社会、生态、文化等多种耦合因素的转型。文章以西部地区典型的资源型省份甘肃省为例。从资源型产业周期特点出发,结合甘肃资源型城市转型中所面临的现实问题,提出了在科学发展观指导下甘肃资源型城市科学转型的思路,并在这一思路的基础上提出了促进甘肃资源型城市转型的对策建议,以期对西部其他省份资源型城市转型提供借鉴。     

隐患探测技术在洪泽湖大堤渗漏检测中的应用

介绍了“同位素示踪”法和“DB-3I型堤 防管涌渗漏检测系统”在洪泽湖大堤渗漏检测中的应用情况,并对两种方法的应用进行了对 比。文末对洪泽湖大堤隐患监测系统的建设提出了建议。     

面向知识经济的虚拟企业创新平台及其结构分析

在知识经济时代,创新是企业竞争力的源泉。由于竞争环境的变化和企业资源的相对短缺,虚拟企业创新平台逐渐受到企业的广泛关注,成为提高创新能力、实现协同创新的重要方法。在探讨虚拟企业和创新平台概念的基础上,分析了虚拟企业创新平台的内涵,认为虚拟企业创新平台具有引导与催化、协同、降低风险的重要功能,构建了虚拟企业创新平台的基本结构及创新主体之间的协同结构。     

“大城管”视野下的政府协调与公务协助机制

大城管,即构建城市综合管理体制,是破解当前城市管理难题的可行路径.良好的城市综合管理体制包括建立各部门协调机制,构建公务协助机制.本文从城市综合管理的概念入手,分析城市综合管理需要构建协调机制的缘由,明确有效协调机制的关键因素,并提出建立有效的公务协助机制的正确方向.