Analysis of Factors Causing Erosion and Flooding in Manleuana Village, Dom Aleixo District, Dili Regency

Abstract

Erosion is a major cause of land damage and degradation. Erosion is the moment of land shifting, ultimately leading to flooding or overflowing water in an area. Erosion and flooding cause physical, social, and economic losses. Many people are unaware of the factors that cause erosion and flooding, so they are unaware of the importance of maintaining the land they use for daily activities. This ultimately leads to erosion and flooding in the areas they occupy. The purpose of this study was to determine the factors causing erosion and flooding, identify and determine which factors control and influence erosion and flooding in Manleuana Village, Dom Aleixo District, Dili Regency. The research method used in this study was a descriptive qualitative method using primary and secondary data to identify the factors causing erosion and flooding in Manleuana Village, Dom Aleixo District, Dili Regency. Based on the research results, the factors causing erosion were identified with scores ranging from 77.07% to 92.18%, with agreement to strong agreement categories for several factors, including climate (rainfall density), topography, vegetation, and human behaviour. The factors causing flooding, based on scores ranging from 69.7% to 86.18%, with agreement to strong agreement categories for seven factors and seventeen variables, were: river conditions, particularly river capacity; drainage conditions, particularly drainage capacity; soil conditions, particularly soil infiltration; flood discharge, particularly heavy flow and normal discharge; river capacity or drainage, particularly erosion and sedimentation; watershed characteristics (watershed width), watershed shape, topography, morphometric, geology, vegetation; and finally, human actions in terms of land use and indiscriminate waste disposal within the area; and the planning, monitoring, and maintenance systems for dams and drainage systems. The analysis shows that relevant ministerial agencies and the community have identified several issues and developed plans to prevent future erosion and flooding in Manleuana Village, Dom Aleixo District, Dili Regency, due to heavy rainfall.