Potensi Stok Karbon Biomassa Hutan Mangrove Sekunder Di Desa Sungsang IV, Sumatra Selatan

Abstract

Hutan mangrove sekunder memiliki nilai jasa ekosistem yang dapat menanggulangi perubahan iklim, walaupun tidak sebaik hutan mangrove primer. Hutan Desa Sungsang IV digunakan sebagai objek untuk melihat dan menganalisis bagaimana kerapatan dan keragaman vegetasi mangrove, serta estimasi potensi stok karbon biomassa di hutan mangrove sekunder. Analisis vegetasi dan kondisi lingkungan dilakukan pada 38 plot untuk menghitung nilai kerapatan dan keragaman spesies hutan mangrove sekunder, serta individu tingkat pohon untuk mengestimasi potensi stok karbon biomassa dengan persamaan alometrik. Rerata kerapatan vegetasi mangrove Hutan Desa Sungsang IV pada tingkat pohon 86 individu ha-1, tingkat pancang 583 individu ha-1, dan tingkat semai 9809 individu ha-1. Terdapat 12 spesies mangrove yang teridentifikasi, yakni Sonneratia caseolaris, Rhizophora apiculata, Avicennia alba, Nypa fruticans, Kandelia candel, Brugueira parviflora, Avicennia marina, Xylocarpus granatum, Aegiceras corniculatum, Acrostichum aureum, Acanthus ilicifolius, dan Bruguiera gymnorrhiza. Rerata estimasi potensi stok karbon biomassa vegetasi mangrove (tingkat pohon) Hutan Desa Sungsang IV sebesar 98 ton C ha-1.

Secondary mangrove forests have ecosystem service value that can mitigate climate change, although they are not as good as primary mangrove forests. Sungsang IV Village Forest is used as an object to see and analyze the density and diversity of mangrove communities, as well as the estimation of potential biomass carbon stocks in secondary mangrove forests. Vegetation and environmental condition analyses were carried out on 38 plots to calculate the density and diversity values of mangrove secondary forest, as well as individual tree levels, to estimate potential biomass carbon stocks using allometric equations. The average density of mangrove vegetation in Sungsang IV Village Forest at the tree level was 86 individuals ha-1, the sapling level was 583 individuals ha-1, and the seedling level was 9809 individuals ha-1. There are 12 identified mangrove species, namely Sonneratia caseolaris, Rhizophora apiculata, Avicennia alba, Nypa fruticans, Kandelia candel, Brugueira parviflora, Avicennia marina, Xylocarpus granatum, Aegiceras corniculatum, Acrostichum aureum, Acanthus ilicifolius, and Bruguiera gymnorrhiza. The average estimated potential carbon stock of mangrove vegetation biomass (tree level) of Sungsang IV Village Forest is 98 tons C ha-1.