Pendugaan Cadangan Karbon di Ekosistem Mangrove Desa Blanakan, Kabupaten Subang

Abstract

Ekosistem mangrove memegang peranan penting dalam upaya mitigasi perubahan iklim karena mampu menyimpan cadangan karbon. Desa Blanakan memiliki hutan mangrove seluas ±260 ha, hingga saat ini belum diketahui potensi cadangan karbonnya. Penelitian ini bertujuan mengidentifikasi pengelolaan serta mengukur potensi cadangan karbon dan serapan CO2 di atas permukaan tanah (above ground) pada tegakan mangrove di Desa Blanakan, Kabupaten Subang. Data dikumpulkan melalui observasi, wawancara, studi literatur, serta analisis vegetasi. Pengelolaan kawasan mangrove di Desa Blanakan berada di bawah naungan Perum Perhutani Regional Jawa Barat dan Banten. Pemanfaatan kawasan mangrove yaitu dengan menerapkan tambak sistem silvofishery. Penelitian ini menunjukkan nilai simpanan karbon di atas permukaan tanah pada lokasi penelitian yaitu sebesar 47,23 ton/ha dengan besar serapan CO2 173,37 ton/ha. Cadangan karbon setiap spesies seperti Avicennia marina, Rhizophora apiculata, Sonneratia alba, dan Strychonos lucida secara berturut-turut yaitu 33,27 ton/ha, 0,54 ton/ha, 12,38 ton/ha, dan 1,04 ton/ha.

Mangrove ecosystems play an important role in climate change mitigation efforts because their ability to store carbon reserves. The village of Blanakan has a mangrove forest area of approximately ±260 ha, but the potential carbon reserves are not yet known. This study aims to identify management practices and measure the potential carbon reserves and CO2 absorption above ground in mangrove stands in the village of Blanakan, Subang Regency. Data was collected through observation, interviews, literature review, and vegetation analysis. The management of the mangrove area in Blanakan Village is under the jurisdiction of Perum Perhutani Regional West Java and Banten. The mangrove area is utilized through the implementation of ponds using the silvofishery system. The study clearly showed above ground carbon storage at the study site is 47.23 tons/ha, with CO2 absorption of 173.37 tons/ha. The carbon reserves of each species, such as Avicennia marina, Rhizophora apiculata, Sonneratia alba, and Strychonos lucida, are 33.27 tons/ha, 0.54 tons/ha, 12.38 tons/ha, and 1.04 tons/ha, respectively.