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Jakarta Post

Reclamation, industries worsen coastal erosion

  • Kharishar Kahfi

    The Jakarta Post

PREMIUM
Jakarta   /   Tue, July 9, 2019   /  07:28 am
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More than just helping to protect the coast from abrasion, mangrove has many other benefits and economic values.(Shutterstock/Ratihrimay)

With Indonesia losing large parts of its coastal areas to coastal erosion, scientists are citing coastal development and unsustainable economic activity as the main causes of the occurrence of the natural process. Coastal erosion is a natural phenomenon occurring in coastal areas where land along the coastline is displaced due to waves, tides, currents and wind, among other factors. In ideal conditions, such land is replaced by the same amount of sediment eroded from other areas in what is called accretion. However, this natural balance is not occurring in large parts of the country. According to a study from the Maritime Affairs and Fisheries Ministry, the country loses around 1,950 hectares of coastal area annually due to abrasion, while only gaining around 895 ha from coastal sedimentation. In the last 15 years, the country has lost 29,261 ha of coastal area. A researcher ...