Shoreline Change Cause of Abrasion in Bantan District Bengkalis Island as the Outstanding Beach Area

Abstract

AbstractThis research is located in Bengkalis Regency, which is directly opposite the Malacca Strait, and cannot be separated from the problem of coastal abrasion. This abrasion is thought because by the impact of ocean waves and the conversion of land which was originally mangroves into oil palm plantations. The purpose of the study is to determine the characteristics and problems that exist in the coastal area and causes of changes in the coastline, both technically and non-technically which have an impact on reducing the boundaries of the sovereignty of the State of Indonesia. The methodology based on visual observations and primary data such as bathymetry, tides, wave height, wave direction, wave period and wind. Bantan District is flat to wavy, the type of soil in Bantan District very susceptible to abrasion, if this is allowed to result in land loss around the coast, agricultural crops and community land. This condition is triggered by high waves which are estimated to be as high as 3 m and erode the land. The placement of breakwater structures and hybrid engineering have been carried out for coastal protection after there is sediment deposition to overcome the problem of abrasion.KeywordsShorelineAbrasionBantan