Identification of the Adaptation Strategies to Mitigate Flash Flood Risk in Sri Lanka

2024-08-22T05:04:11+00:00

Flash floods pose a global threat due to their destructive nature, particularly in densely populated urban areas, causing substantial economic loss. As a developing country, urban areas in Sri Lanka also face this issue frequently. The study investigates the consequences of sudden flash floods in a vulnerable region as the case study area within the Waligampitiya Grama Niladari Division (GND) in the Ja-Ela District. This study aims to identify the adaptation strategies to mitigate the impact of flash floods in Sri Lanka. The methodology involves conducting interviews with government officers in the Ja-Ela division and the District Disaster Management Centre, extracting data from situation reports, reviewing data, site observations, photographic survey, analyzing rainfall data from the Department of Meteorology Sri Lanka and land use data from Survey Department and Municipal Council. Interviews identified flash flood risk and management techniques, providing a comprehensive analysis for effective strategies and plans to address the identified issue. Then the final objective of the study entails proposing suggestions, which will be achieved by reviewing strategic plans, the relevant literature on best practices, and the analysis of adopted strategies from developed and developing countries. The strategies to be employed in Ja-Ela to mitigate flash flood damage involved real-time flood mapping and notification systems, awareness and preparedness activities, and stakeholder engagement. This study presents effective flash flood mitigation options for implementation in Ja-Ela, which can serve as significant insights for any other flood mitigation project of a similar nature.

Growth and Yield Performances of Cabbage Grown under a Protected House in Low Country Wet Zone of Sri Lanka as Affected by Artificial Lights and Rate of Albert Fertilizer

2024-12-24T08:30:54+00:00

A study was conducted in two automated protected houses at Faculty of Agriculture, University of Ruhuna, Sri Lanka to investigate the effect of artificial light supplementation (using LED light source) and rate of Albert fertilizer on growth and yield of Cabbage. The experiment was conducted in a two-factor factorial (2 x 2) Completely Randomized Design with five replicates. The tested two factors were light (with and without artificial lights) and rate of Albert fertilizer (1.0 g/plant/day and 2.0 g/plant/day). These two fertilizer rates were selected based on the best performed fertilizer rates, reported in a previous study. Thus, present study aims to find the effect of previously selected two fertilizer rates and artificial lights on growth and yield of Cabbage. Growth and yield parameters were measured and collected data were analyzed using ANOVA. Subsequently, means were separated by least significant difference (LSD) at 5% probability level. Results revealed that there is no interaction effect between rate of fertilizer and artificial lights on growth or yield parameters of cabbage. However, both growth and yield parameters of cabbage were significantly affected at least by one main factor. Plant height and canopy diameter were significantly increased by artificial lights. Significantly highest number of loose leaves per plant was recorded by 2.0 g/plant/day. 1.0 g/plant/day fertilizer rate and artificial lights recorded significantly highest total above ground biomass yield, cabbage head weight and head perimeter. Therefore, greater yields from cabbage can be obtained by applying Albert fertilizer 1.0 g/plant/day and artificial light enhanced the yield of cabbage.

Journal of the Sri Lanka Association for the Advancement of Science

Identification of the Adaptation Strategies to Mitigate Flash Flood Risk in Sri Lanka

Growth and Yield Performances of Cabbage Grown under a Protected House in Low Country Wet Zone of Sri Lanka as Affected by Artificial Lights and Rate of Albert Fertilizer