Estimasi Simpanan Karbon Sedimen Mangrove di Hutan Mangrove Kecamatan Ayah, Kabupaten Kebumen

Abstract

Ekosistem mangrove berfungsi penting bagi lingkungan salah satunya penyimpn karbon (C). Estimasi karbon vegetasi mangrove merupakan potensi magrove menyimpan karbon (stok karbon) dalam bentuk biomassa. penelitian ini bertujuan untuk mengestimasi simpanan karbon pada sedimen di hutan mangrove Kecamatan Ayah Kabupaten Kebumen. Penelitian dilakukan bulan Desember 2020. Stasiun penelitian dibagi menjadi 4 dan ditentukan berdasarkan kerapatan. Metode yang digunakan yaitu metode deskriptif. Penentuan lokasi penelitian dilakukan dengan metode pertimbangan atau purposive sampling. Sampel sedimen diambil berdasarkan plot sampling berukuran 10x10 meter dengan pipa modifikasi berdiameter 5 cm. Analisis data dilakukan menggunakan metode LOI (Los on Ignition). Nilai estimasi karbon sedimen penelitian ini adalah stasiun MA1 sebesar 7,70 ton/ha, stasiun MA2 sebesar 8,86 ton/ha, stasiun  MA3 sebesar 6,42 ton/ha dan stasiun MA4 sebesar 7,50 ton/ha. Hasil tertinggi pada stasiun MA2 kategori sedang dan hasil terrendah pada stasiun MA3 kategori rapat. Nilai karbon sedimen dipengaruhi kondisi lingkungan dan tekstur sedimen.

The mangrove ecosystem has an important function for the environment, one of which is carbon storage (C). Carbon estimation of mangrove vegetation is the potential for mangroves to store carbon (carbon stock) in the form of biomass. This study aims to estimate carbon storage in sediments in the mangrove forest of Ayah District, Kebumen Regency. The research was conducted in December 2020. The research stations were divided into 4 and determined based on density. The method used is descriptive method. Determination of the location of the research is done by the method of consideration or purposive sampling. Sediment samples were taken based on a sampling plot measuring 10x10 meters with a modified pipe with a diameter of 5 cm. Data analysis was performed using the LOI (Los on Ignition) method. The estimated value of sediment carbon in this study is MA1 station of 7.70 tons/ha, MA2 station of 8.86 tons/ha, MA3 station of 6.42 tons/ha and MA4 station of 7.50 tons/ha. The highest results were at the medium category MA2 station and the lowest results were at the dense category MA3 station. Sediment carbon value is influenced by environmental conditions and sediment texture.