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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences JURNAL HUTAN LESTARI
Wiarta, Rinto
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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PENDUGAAN JUMLAH KARBON TERSIMPAN PADA TEGAKAN JENIS BAKAU (Rhizophora apiculata BL) DI IUPHHK PT. BINA OVIVIPARI SEMESTA KABUPATEN KUBU RAYA Wiarta, Rinto; Astiani, Dwi; Indrayani, Yuliati; Mulia, Fairus
JURNAL HUTAN LESTARI Vol 5, No 2 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i2.19981

Abstract

This study aimed to determine total carbon stock on one to five years old (Rhizophora apiculata BL) trees stand planted in IUPHHK PT. Bina Ovivipari Semesta. This study was conducted over five months on the purposively selected area of forest rehabilitation. This study applied harvested method for 1-3 years old and non-harvested method for 5 years old bakau trees that selected with purposive sampling method. The results showed that the bakau stand has an ability to store very high carbon. The amount of carbon stored in 1 year, 3 years and 5 years of bakau stand were 42.06, 57.93 and 65.91 tonnes ha-1. Keywords: Bakau stand, carbon stocks,  mangrove ecosystems, PT. Bios
Litter Productivity Dynamics in Segara Anakan Mangrove Forest, Cilacap, Indonesia Kresnasari, Dewi; Zainuri, Muhammad; Muskananfola, Max Rudolf; Pribadi, Rudhi; Wiarta, Rinto
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 30, No 1 (2025): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.30.1.152-162

Abstract

Mangrove litter is a critical component of the nutrient cycle, reflecting soil fertility and water quality within the mangrove ecosystem. This study investigates the dynamics of litter productivity in the Segara Anakan mangrove forest in Cilacap. The study area is divided into two locations with three points, with five litter traps installed at each point. Sonneratia caseolaris dominates vegetation characteristics at Station 1, while Station 2 has more diverse vegetation, including Sonneratia caseolaris, Aegiceras corniculatum, Acanthus ilicifolius, Derris trifoliata, Rhizophora mucronata, Avicennia alba, and Avicennia marina. Sampling follows seasonal changes in Indonesia, covering June 2023 to March 2024. The primary data for this study include aboveground litterfall production, estimated using litter traps, and the litter layer on the forest floor collected through soil transects. Secondary data comprise weather measurements, including air temperature, rainfall, wind speed, and humidity. Litterfall and litter layer were collected four times: June (dry season), September (transition from dry to rainy season), December (rainy season), and March (transition from rainy to dry season). The results indicate a total litter productivity of 18.99 tonnes ha-1 yr-1. The lowest litter production was observed in September, while the highest was in March. Leaf litter contributed the most, accounting for 71.49%, followed by twigs at 19.19%, flowers/fruits at 8.31%, stipules at 0.62%, and the lowest portion from other unidentified materials at 0.39%. Litter productivity shows a strong correlation (0.99) with rainfall. The main factors influencing litter productivity include environmental factors, primarily rainfall, and physiological factors, such as flowering and fruiting phenology.
Co-Authors Dwi Astiani Kresnasari, Dewi Luh Putu Ratna Sundari Max Rudolf Muskananfola Muhammad Zainuri Mulia, Fairus Rudhi Pribadi