Estimasi Distribusi Spasial Stok Karbon Mangrove di Atas Permukaan Tanah di Kecamatan Medan Belawan Menggunakan Citra Satelit Sentinel-2A

Abstract

The mangrove forest is an ecosystem of coastal forests. Mangrove forests have an important role to play in coastal life; besides, mangrove woods have an ecological function as good carbon storage and can reduce CO2 emissions in efforts to mitigate climate change. The research is aimed at obtaining information on the carbon spread over the surface of Sicanang mangrove forest soil, Belawan Field District, Field City, using a Sentinel-2A satellite image. The field data collection method is purposive sampling of 358 observation plots. Carbon content measurement uses allometric equations. The creation of spatial models uses the index of vegetation as a free variable and carbon as a bound variable, and statistical testing is carried out. The carbon spread map is selected based on the selected vegetation index model using NDVI, GNDVI, MRSre, and NDre1. The results of the study show that the exponential model NDVI is the best model with the regression equation y = 0,0866e8,7101x, R2 = 0,864, the T-pair test > 0,05, and RMSE = 5,81. The average carbon