PERUBAHAN TUTUPAN LAHAN PESISIR PASCA TSUNAMI DI KECAMATAN LHOONG KABUPATEN ACEH BESAR

Tsunami disaster in 2004 caused a lot of damage to the area and reduced land for ponds, forests and settlements in the coastal area of Lhoong District, Aceh Besar. This study aims to inventory the condition of coastal land cover after the tsunami disaster through visual interpretation of images and analyze land cover changes that occurred in 2004, 2009, 2014, and 2019. The analysis used is descriptive with a quantitative approach that utilizes remote sensing data. This study uses the changed detection method, to analyze land changes in those years. The results of the analysis show that there was a change in land cover area in 2004, 2009, 2014, and 2019. The difference between pre-tsunami and post-tsunami environmental conditions each year has significant changes. Mangroves in 2004 had the highest area of 12.32 Ha and for the following year it had a decrease. Secondary dryland forest has not changed both pre and post-tsunami with an area of 772.65 Ha. Mixed dry land agriculture in 2004 had the highest area of 121.71 Ha and for the following year it had a decrease. Land area of the body of water experienced an increase in land change when post-tsunami in 2009 was 95.84 hectares. Pond area in 2004 had the highest area of 106.75 Ha and decreased in 2009 to 65.60 Ha and an increase in area in 2014 and 2019 which was 73.52 Ha and 79.40 Ha. Open land experienced an increase after tsunami the 2009 covering an area of 116.07 Ha. Post-tsunami residential land experienced a very significant decrease in 2004 covering an area of 252.06 Ha to 225.68 Ha. Paddy fields in 2004 covering an area of 765.58 Ha decreased in 2009 to 626.42 Ha, in 2014 to 649.64 Ha, and in 2019 to 649.96 Ha