Discourse and practice of participatory flood risk management in Belfast,UK

The introduction of the Floods Directive signals a move from flood protection towards flood risk management in the European Union. Public participation is highlighted in the Floods Directive as being instrumental to effective implementation of this new approach. This study utilised document analysis, non-participant observation, a questionnaire survey, and interviews to evaluate the discourse and practice of participation in the implementation of the Floods Directive in Belfast, United Kingdom. Flood risk management processes in Belfast are found to be high on participatory rhetoric but low on meaningful engagement. The participatory process is lacking in transparency, does not encourage the active participation of interested parties and has not been clearly communicated to key publics. Opportunities to increase meaningful public participation in the process remain underutilised, and the establishment of local flood forums has provided little opportunity for meaningful engagement. Some actions of governance agencies could be best characterised as facilitating the responsibilisation of risk and are designed to manage risk to agencies rather than address flooding issues.     

考虑应力作用影响的黄泛区粉土土水特征曲线分析与预测

为了研究应力作用对土水特征曲线的影响，采用应力关联土水特征仪测定不同应力下粉土的脱湿-吸湿曲线，讨论应力变化对粉土土水特征的影响规律，并利用应力与孔隙比的关系提出考虑应力作用的粉土土水特征曲线预测方法。研究发现：试样在应力逐渐增加时不易脱水，但更易吸水，非饱和粉土的持水能力随着正应力的增大而增强；脱湿曲线与吸湿曲线并不重合，有明显的回滞现象，并且吸湿曲线饱和度的变化比脱湿曲线更加剧烈；随着正应力的增大，滞回圈面积减小，滞回特性减弱。此外，将预测曲线与测得的试验曲线对比, 可知提出的考虑应力的土水特征曲线预测方法具有较好的预测精度。     

美国洪水保险计划的运营启示

在我国,洪水灾害是主要的自然灾害之一。然而,洪水保险制度却迟迟未能建立。本文搜集和分析有关美国洪水保险计划(NFIP)的最新文献,对以NFIP为代表的政府主导洪水保险运营模式进行了历史脉络的梳理,研究了其法制发展、运营现状、模式特色以及出现的问题,最后对洪水保险的政府运营模式进行了启发式的总结和建议。     

Switzerland’s transition from flood defence to flood-adapted land use–A policy coordination perspective

This contribution examines Switzerland’s shift towards integrated flood risk management from a policy coordination perspective. The study applies a heuristic framework of policy coordination to explore how adaption needs promoted cross-sectoral policy coordination between hydraulic engineering and land use planning and enhanced coherence in flood policies targeting extreme flood events. To account for the temporal dimension in policy coordination, the article traces Swiss flood policies back to the early 1800s and distinguishes four phases of policy coordination. Across the four periods, the analysis focuses on (a) the drivers of policy coordination, (b) the manifestation of policy coordination in terms of policy frames, goals, instruments and subsystem involvement, and (c) the performance of policy coordination. Complemented by an in-depth case study of cross-sectoral flood policies in the Swiss canton Nidwalden findings show that the coordination between flood and land use policies has primarily been driven by three factors: (i) extreme floods as focusing events, (ii) an increasing problem pressure, and (iii) strategic reorientations in flood and land use policies. Today, flood risk management in Switzerland displays a high degree of sectoral interplay between hydraulic engineering and spatial planning. By fostering flood-adapted land uses Switzerland’s coordinated flood policies reduce the vulnerability to uncertain future changes in flood risk and strengthen the country’s capacities to mitigate damage in extreme floods events.     

Urban flood resilience,a discursive-institutional analysis of planning practices in the Metropolitan City of Milan

Flood risk is increasing all over the globe due to urbanization and the effects of climate change. Water managers and urban planners try to cope with flood risk by enhancing urban flood resilience. Three main discourses of resilience are engineering, ecological, and socio-ecological resilience. Whereas the discourse of engineering resilience emphasizes the use of flood protection infrastructures, the discourses of ecological and socio-ecological resilience advocate river restoration and spatial strategies to reduce flood risk. In this paper, we investigate which resilience discourse is dominant in the Lambro river basin (Metropolitan City of Milan), and how this discourse has been translated into institutions (rules-in-use) and outcomes, such as flood protection infrastructures or building regulations. Our discursive-institutional analysis is informed by the (politicized) Institutional Analysis and Development (IAD) framework, which highlights the role of discursive, institutional, and contextual factors in explaining the outcomes of strategic interactions within action arenas. It is shown that whereas bottom-up initiatives try to foster socio-ecological resilience, the engineering resilience discourse still dominates within the Lambro river basin because national policies and funds are geared towards hard infrastructure measures.     

Public involvement in flood risk management in Hungary

The increasing frequency and intensity of recent floods and their economic, social, and political impacts created a situation in Hungary where flood management strategies need urgent reconsideration. Research suggests that in the case of natural disasters of uncertain and changing character, public education, information, participation, and cooperation are particularly important tools for coping. Drawing on the data collected by two recent empirical studies, this paper investigates state-of-the-art public involvement in flood control activities in Hungary. Results of a questionnaire survey and a series of semistructured interviews conducted in three flood basins of the Tisza river indicate that although the highly centralized system of flood control, and especially its strong financial background, a characteristic of state socialism, has significantly weakened since the political transition, forms of public participation, which could reduce the risk by building on a more conscious and responsible attitude of the citizens, have not developed yet. Paternalist and elitist attitudes prevail on the part of the authorities, contributing to the passivity of the public. There are signs, however, that in certain places, local government leaders take responsibility for building communication networks to raise public awareness and mobilize the public more effectively.     

鄱阳湖区洪水灾害与孕灾环境变化的关系问题研究

本文分析了鄱阳湖区洪水灾害与孕灾环境变化的关系,包括全球环境的变化以及人类活动导致的植被破坏、大规模围湖造田和三峡水库的运行等与洪水灾害的关系,针对鄱阳湖区洪水灾害,提出了洪水灾害减灾对策。     

The introduction of catchment-wide co-operations: Scalar reconstructions and transformation in Austria in flood risk management

The management of flood risk in Europe is changing. In several European Member States there are significant ongoing processes to shift certain flood risk management duties and responsibilities from the national to the local level. Previously, national authorities dominated the discourse about national flood risk management policy, but increasingly, local and private stakeholders have become responsible for flood risk management. This has greatly influenced the governance structure and arrangements for flood risk management policy. As a result, the co-operation among various stakeholders has become increasingly important. The consequences of this shift toward local stakeholders can be understood in the context of rescaling. This paper analyses the rescaling processes through catchment-wide management plans in the Austrian flood risk management system. Therefore, we selected three different Austrian study sites (Aist in Upper Austria, Triesting-Tal in Lower Austria and Ill-Walgau in Vorarlberg). New management ideas required new dynamics within the current scales and allowed changes in the interaction of local, regional, and national stakeholders in terms of negotiation, funding, and strategy development. The new policy direction demonstrates not only the importance of network connections between stakeholders at the same scale, but also networks between stakeholders at different scales, especially between local and national levels. However, engagement at the local level strongly depends on social capacities, such as knowledge, motivation/self-interest, networks at various levels, and procedural capacity. The theoretical framework of politics of scale helps in understanding and analysing the impact of the new decentralisation policy and practice.     

两汉黄河水患与河口龙门间土地利用之关系

作者对史料重新进行了综合分析和解读，就两汉黄河下游水患及中游河口——龙门间土地利用方式的环境后果提出了新的观点：东汉水患频率高于西汉，灾情也更为严重；东汉时期河口镇至龙门间的农耕人口减少了九成以上，该区与整个黄河中游一样，迁入了大量游牧民族，原始的游牧对天然植被破坏性极大，是造成东汉黄河下游水患频繁的主要原因。     

梧州市河东防洪堤安全复核及工程加固设计

阐述了对广西梧州市河东防洪堤进行安全复核的缘由,介绍了几种安全复核的方法和工程加固设计方案,并结合现场实际情况论证河东防洪堤安全复核的结论,证明对其所采取的工程措施是有效的。