A Study on Zone Alteration of Mangrove Caused by Abrasion in the Marangkayu Coastal Area of Kutai Kartanegara Regency

Abstract

This study focuses on observing various types of mangroves and mangroves that are resistant to penetration in four coastal areas, namely Tanjung Santan, Kersik, Terusan, and Pangempang. Identification of erosion levels in each area was carried out through remote sensing in 2003 and 2011 in Marangkayu District, Kutai Kartanegara Regency, East Kalimantan Province. Data collection of mangrove vegetation was carried out in four coastal areas, namely Tanjung Santan, Kersik, Terusan, and Pangempang. The results of remote sensing calculations show a shift in the rate of coastline due to erosion in Tanjung Santan around 1.39 m / year, Kersik by 2.75 m / year, and Canal around 0.45 m/year. In Pangempang, sedimentation causes an addition of about 1.09 m/year. The Mangrove Zone on the coast of Marangkayu suffered significant losses due to coastal abrasion, causing zoning changes, especially in Tanjung Santan, Kersik, and north of the Canal coast. Meanwhile, in Pangempang, mangrove zoning is still relatively normal.