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Abstract:The aim of this study was to identify the major variables identified as important for considering the stabilization of slope revegetation based on hydroseeding applications and evaluate weights of each variable using the analytic hierarchy process (AHP) with both environmental experts and civil engineers. Twenty-five variables were selected by the experts' survey from a total of 65 from the existing literature, with each variable considered as an important factor for slope stabilization in South Korea. The final results from the AHP method showed that variables associated with the driving force of water resources showed higher values in all expert groups such as rain intensity, seepage water and drainage condition. Other important variables were related to plant growth such as vegetation community, vegetation coverage and quality of soil ameliorant produced in an artificial factory such as tensile strength, permeability coefficient, soil texture and organic matter. The five highest-ranked variables that satisfied both environmental experts and civil engineers were rain intensity, seepage water, slope angle, drainage condition and ground layer. The findings of this research could be helpful for developing a more accurate rating system to evaluate the stability of slope revegetation.

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Purpose Participatory action research can improve scientific knowledge and community capacity to address disaster resilience and environmental justice. Evidence from the literature suggests that resident participation enhances assessment of environmental risks, raises awareness, and empowers residents to fight for equitable distribution of hazard and climate risk adaptations. Yet, risk assessment and urban planning processes still frequently operate within expertise-driven groups without significant community engagement. Such fragmentation results in part from a lack of appreciation for community expertise in built environment adaptations and educational tools to support resident involvement in the often technical built environment planning processes. Approach A participatory research and place-based education project was developed that enhanced co-learning between residents and researchers while collecting and analyzing local data on flood resilience in the built environment. Five research activities constitute the curriculum of resilience education on stormwater infrastructure: 1) establishment of partnership agreement/MOU, 2) participatory GIS to identify flooding issues, 3) water quality testing and health survey, 4) stormwater infrastructure assessment, and 5) urban/landscape design. Partners included high school and college students, residents, and environmental justice organizations. Findings Outcomes include a stakeholder approved infrastructure assessment smartphone application, neighborhood maps of drainage issues, a report of water containments, and neighborhood-scaled green infrastructure provisions and growth plans. Findings indicate that participatory research positively contributed to resilience knowledge of participants. Value This paper outlines an interdisciplinary pedagogical strategy for resilience planning that engages residents to assess and monitor the performance of stormwater infrastructure and create resilience plans. The paper also discusses challenges and opportunities for similar participatory projects.