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participatory Mapping and Visualization of Local Knowledge:An Example from Eberbach, Germany

International Journal of Disaster Risk Science 2021年第1期12卷 56-71页

作者： Carolin Klonner Tomás J.Usón Nicole Aeschbach Bernhard Höfle Institute of Geography Heidelberg University69120 HeidelbergGermany Institute of European Ethnology and IRI THESys(Integrative Research Institute on Transformations of Human-Environment Systems) Humboldt University of Berlin10117 BerlinGermany

A rise in the number of flood-affected people and areas has increased the interest in new methods and concepts that account for this *** are integrated into disaster risk reduction processes through participatory approaches and can provide valuable up-to-date local *** a field study in Eberbach(Baden–Wuerttemberg,Germany)sketch maps and questionnaires were used to capture local knowledge about *** on a previous study on urban flooding in Santiago de Chile,the tools were adapted and applied to river flooding in the city of Eberbach,which is regularly flooded by the Neckar River,a major river in southwest *** empirical database of the study comprises 40 participants in the study area and 40 in a control *** of the participants in each group are residents and half are *** sampling was used,and the questionnaires aimed to gather demographic information and explore what factors,such as property,influence the risk perception of the study *** results show that residents identify a larger spatial area as at risk than pedestrians,and owning property leads to higher risk *** flood type influenced the choice of the base maps for the sketch *** river flooding,one map with an overview of the area was sufficient,while for urban flooding a second map with more details of the area also enables the marking of small *** information gathered can complement authoritative data such as from flood *** participatory approach also increases the communication and trust between local governments,researchers,and citizens.

关键词： Disaster risk reduction Flooding Local knowledge participatory approach Sketch maps Volunteered geographic information

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A participatory Assessment of the Impact of Flooding in Some Communities in Lokoja, Kogi State, Nigeria

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American Journal of Climate Change 2021年第1期10卷 12-31页

作者： Felix Ndukson Buba Samam Obaguo Okibe Ogah Felicia Oluwatoyin Ajayi African Regional Centre for Space Science and Technology Education in English (ARCSSTE-E) Obafemi Awolowo University Campus Ile-Ife Nigeria

The frequency and consequences of extreme flood events have increased in recent times, having huge impact on the socio-economic well-being of nations with the most significant impact being felt at the community level. Flooding is the most common environmental hazard in Nigeria, particularly Lokoja, with the frequency, intensity, and extent likely to increase due to the effects of global warming leading to climate change such as sea level rise, more intensive precipitation levels, and higher river discharges. While destructive impacts of flood events continue to increase, flood managers in Nigeria have continued to implement a top-down approach towards mitigating these impacts, without involving affected communities in planning and implementation of mitigation strategies. This study therefore employed a participatory approach to determine the causes and impact of flooding in the study area. participatory research tools such as key informant interviews, focus group discussions, and questionnaire surveys using the purposive sampling method were deployed to elicit data on the perception of the communities about the causes and impact of flood events. Descriptive statistical analysis was performed to elucidate the major causes and areas of impact while qualitative analysis was carried out to corroborate the results and to make for a robust outcome. The Chi Square Test analysis was performed to empirically establish a relationship between the impacts and flooding. Results show that major causes of flooding are the release of water from dams (83% in Adankolo, 97% in Gadumo, and 100% in Ganaja), overflow of rivers, and heavy rainfall while flooding affects economic concerns, property and basic amenities. The Chi Square Test analysis determined empirically that a relationship exists between several areas of impact and flood occurrence. The research concludes that participatory flood research approach can provide flood managers and decision makers a bottom-up approach for effe

关键词： Flood Impact participatory approach Chi Square Test Top-Down Bottom-Up Mitigation

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