Article
Struktur dan Kapasitas Adaptif Ekosistem Mangrove di Kecamatan Tinanggea Kabupaten Konawe Selatan
Jurnal Perencanaan Wilayah, Vol. 9 No. 1 (2024), hlm. 25–35
Abstrak
The objective of this study was to determine the structure and adaptive capacity of mangrove stands in Tinanggea District. This research was conducted using the quadrat method and tree census with circle plots (diameter 14 m). The structure and the adaptive capacity of the mangrove ecosystem were determined by analyzing the mangrove dimension index (IDMg) based on mangrove thickness and length, dominant mangrove species, tree density, number of species, type of substrate and distance of mangrove ecosystem from settlements. Research result. This research was conducted in 4 mangrove stands (stations) around the Tinanggea river. The results of this study indicate that the thickness of the mangrove stands ranges from 0.06 km-0.76 km with the thickest being at station T1, while the thinnest was found at station T2. The density of mangrove trees ranges from 360-1500 indv.ha-1, the most crowded of tree density was found at station T3, while the rare tree density was at station T2. Meanwhile, the average DBH of mangrove trees ranged from 11.96 to 17.71 cm, the biggest being at station T4 and the smallest at station T3. The basal area ranges from 4.92 to 31.16 m2 ha, the highest being at station T4 and the lowest at station T2. The IDMg is in the low category for T1 stations (0.52), but it was in a very low category for stations T2 (0.07), T3 (0.11), and T4 (0.29). The adaptive capacity of mangroves in Tinanggea varied with values ranging from 0.36 to 0.62, namely high adaptive capacity at station T1 (0.62), and "moderate" adaptive capacity at stations T3 (0.54) and T4 (0.58). However, a "low" adaptive capacity of mangroves was found at station T2 (0.36). The adaptive capacity of mangroves is low in mangrove areas that are close to settlements and converted mangrove land into aquaculture. Therefore, it is necessary to re-orient mangrove management for sustainable fisheries and the importance of protecting and involving stakeholders and the community in managing mangroves in Tinanggea to ensure mangrove’s sustainability.