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Estimasi Cadangan Karbon pada Kawasan Mangrove di Desa Timbulsloko, Demak, Jawa Tengah

*Wiwid Andriyani Lestariningsih  -  Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia
Nirwani Soenardjo  -  Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia
Rudhi Pribadi  -  Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia
Open Access Copyright (c) 2018 BULETIN OSEANOGRAFI MARINA under http://creativecommons.org/licenses/by-sa/4.0.

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Abstract

Ekosistem mangrove merupakan salah satu ekosistem yang berperan dalam mengurangi karbon di udara, dan menyimpan karbon dari udara dalam bentuk biomassa pada bagian tubuh tumbuhan mangrove. Penelitian tentang estimasi cadangan karbon ini sangat diperlukan untuk menunjang perbaikan iklim dunia. Karena saat ini dunia sedang mengalami krisis global yang disebut climate change. Tujuan penelitian ini adalah mengestimasi cadangan karbon yang tersimpan pada tegakan dan substrat mangrove di kawasan mangrove Desa Timbulsloko. Metode yang digunakan yaitu purposive sampling method dan eksploratif, dilakukan di tiga stasiun dengan kondisi ekosistem mangrove yang bervariasi. Setiap stasiun penelitian dibagi menjadi tiga plot penelitian untuk menghitung nilai biomassa tegakan digunakan rumus allometrik untuk mengestimasi cadangan karbon pada tegakan mangrove. Data karbon substrat didapat dari kandungan bahan organik substrat yang dianalisis di Laboratorium. Berdasarkan hasil penelitian, diketahui bahwa cadangan karbon pada tegakan mangrove sebesar 12.370,8 ton/ha, sedangkan estimasi cadangan karbon pada substrat mangrove sebesar 1.307,77 ton/ha. Hasil tersebut menunjukkan bahwa estimasi cadangan karbon pada tegakan mangrove lebih besar dibandingkan dengan estimasi cadangan karbon pada substrat mangrove. Hasil estimasi cadangan karbon pada tegakan mangrove meningkat seiring dengan meningkatnya besarnya biomassa tumbuhan dan kerapatan mangrove. Sedangkan estimasi cadangan karbon pada substrat diduga lebih dipengaruhi oleh bahan organik dan lokasi penelitian.

 

Estimates of Carbon Stok in the Mangrove Area in Timbulsloko Village,Demak, Central Java

 

Mangrove ecosystem is one of the ecosystem that play a role in reducing carbon in the air. One of the functions of mangrove is to store carbon from the air form of biomass in the body parts of mangrove plants. This research on the estimation of carbon stocks is needed to support the improvement of world climate. Today the world is experiencing a global crisis called climate change. The purpose of this research are estimate of carbon stock on stands and substrate in mangrove area of Timbulsloko Village. This research used purposive sampling and explorative method, conducted in three stations with varying mangrove ecosystem conditions. The research was divided into three research plots per station to calculate the stand biomass value using allometric formula in estimating carbon stocks of mangrove area. Substrate carbon data obtained from the content of substrate organic materials analyzed at Laboratorium. Based on the result of research, it is found that carbon stock in mangrove stands is 12.370,8 ton/ha, while estimation of carbon stock on mangrove substrate is 1.307 ton/ha. These results show that estimates of carbon stocks in mangrove stands are greater than estimates of carbon stocks on mangrove substrates. The estimation of carbon stocks on mangrove stands increases with increasing of plant biomass and mangrove density, while estimates of carbon stocks on the substrate are suspected to be more influenced by organic materials and research sites.

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Keywords: Mangrove; Carbon; Biomass; Timbulsloko; Demak

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