Multi-Temporal Spatial Analysis of Mangorve Carbon and Land Change in the Wulan Delta, Demak Regency

Mangrove ecosystems play a crucial role in life, including as a carbon sink in nature, thus contributing to climate change mitigation, high wave buffering, and abrasion and accretion control on the coast.This study aims to determine the carbon sequestration capacity and area change of mangroves from 2017 to 2022.The research was conducted in June 2023 in the Wulan Delta in Menco Village, Wedung District, Demak Regency.The method used was purposive sampling at 3 stations by identifying mangroves, measuring Diameter Breast High (DBH), taking sediment, measuring the physical and chemical properties of mangrove sediment, and spatial data of Landsat 8 satellite imagery.Carbon analysis used the allometric equation to calculate carbon stock in mangrove trees and stands, then for sediment using the Loss On Ignition (LOI) method, and satellite imagery analysis was processed using ArcMap 10.3.The results obtained were that the CO₂ separation value was 733.86 -886.19 tons CO₂/ha.The spatial area in 2017, 2019, 2020, and 2022 was 1,003.93,852.38, 853.25, and 935.29 hectares.The change in mangrove area in the Wulan Delta experienced changes every year due to abrasion in 2017 and 2019, while in 2020 to 2022 there was an increase due to replanting by the community and natural growth.