Tri Dev Acharya

Flood is one of the most frequently occurring and devastating disasters in Nepal. Several locations in Nepal are at high risk of flood, which requires proper guidance on early warning and safe evacuation of people to emergency locations through optimal routes to minimize fatalities. However, the information is limited to flood hazard mapping only. This study provides a comprehensive flood susceptibility and evacuation route mapping in the Siraha Municipality of Nepal where a lot of flood events have occurred in the past and are liable to happen in the future. The flood susceptibility map was created using a Geographic Information System (GIS)-based Analytical Hierarchy Process (AHP) over nine flood conditioning factors. It showed that 47% of the total area was highly susceptible to flood, and the remaining was in the safe zone. The assembly points where people would gather for evacuation were selected within the susceptible zone through manual digitization while the emergency shelters were selected within a safe zone such that they can host the maximum number of people. The network analysis approach is used for evacuation route mapping in which the closest facility analysis proposed the optimum evacuation route based on the walking speed of evacuees to reach the emergency shelter place considering the effect of slope and flood on the speed of the pedestrian. A total of 12 out of 22 suggested emergency shelters were within 30 min, 7 within 60 min, and 2 within 100 min walk from the assembly point. Moreover, this study suggests the possible areas for further shelter place allocations based on service area analysis. This study can support the authorities’ decision-making for the flood risk assessment and early warning system planning, and helps in providing an efficient evacuation plan for risk mitigation.

Malnutrition, hunger, and rural poverty in Nepal are prevalent issues that have been exacerbated by the negative impacts of climate change on crop production. To create a more sustainable and resilient food system, it is crucial to explore alternative options beyond the small number of input-intensive crops that the country currently relies on. In this study, we conducted a comprehensive investigation of six underutilized food crops—amaranth, buckwheat, finger millet, foxtail millet, naked barley, and proso millet—in four mountainous districts of the Karnali province, Nepal. Using several approaches that included a literature review, key informant surveys, focus group discussions, and direct observations, we explored the production and utilization aspects of these crops, as well as their potential for improving nutrition and food security. Our findings indicate that these underutilized crops continue to be a vital element of the diets of people residing in Karnali and play an important role in their livelihoods. This study also highlights the diversity and potential of these underutilized crop landraces, and their significance in addressing nutrition and food insecurity, as well as in improving livelihoods in regions with marginal lands and inadequate food supply. Thus, promoting the cultivation and consumption of underutilized crops can create a more sustainable and diverse food system that is resilient to climate change. However, further investigation is needed to fully understand the socioeconomic importance and other potential benefits of these crops.