PENDUGAAN STOK DAN SERAPAN KARBON DI TAMAN KONSERVASI KAMPUS IPB DRAMAGA

Abstract

Peningkatan CO2 di atmosfer mendorong perlunya mitigasi perubahan iklim melalui pengelolaan vegetasi penyerap karbon. Penelitian ini bertujuan menganalisis komposisi jenis struktur tegakan, serta mengestimasi stok dan serapan karbon di Taman Konservasi Kampus IPB Dramaga (3,64 ha). Data diperoleh melalui sensus seluruh tegakan yang berdiameter > 5 cm. Pendugaan biomassa menggunakan persamaan alometrik Manuri et al. (2017) dan Ketterings et al. (2001) untuk pohon serta Goodman et al. (2013) untuk palem. Taman Konservasi memiliki 1.302 individu dari 103 spesies dan 40 famili dengan indeks vegetasi tinggi (H'=3,88; E=0,84; R=14,22), struktur horizontal membentuk kurva J terbalik, dan struktur vertikal didominasi stratum C (4–20 m). Stok karbon pohon sebesar 520,16 ton C (persamaan Ketterings et al. (2001)) dan palem 1,16 ton C (Goodman et al. (2013)), dengan serapan karbon sebesar 1.908,97 ton CO2 (persamaan Ketterings et al. (2001)). Potensi laju serapan karbonnya sebesar 66,43 ton CO2/tahun (persamaan Ketterings et al. (2001)). Taman Konservasi berfungsi penting sebagai penyimpan dan penyerap karbon dalam mendukung mitigasi perubahan iklim di lingkungan kampus dan perkotaan.

The increase of CO2 in the atmosphere encourages the need for climate change mitigation through the management of vegetation for carbon sequestration. This study aims to analyze the species composition and stand structure, as well as estimate carbon stocks and carbon sequestration in the Taman Konservasi Kampus IPB Dramaga (3.64 ha). Data were collected through a census of all stands with a diameter of > 5 cm. Biomass was estimated using the allometric equations of Manuri et al. (2017) and Ketterings et al. (2001) for trees and Goodman et al. (2013) for palms. The Taman Konservasi has 1,302 individuals from 103 species and 40 families with a high vegetation index (H'=3.88; E=0.84; R=14.22), a horizontal structure forming an inverted J curve, and a vertical structure dominated by stratum C (4–20 m). The carbon stock of trees is 520.16 tons C (equation of Ketterings et al. (2001)) and palms 1.16 tons C (Goodman et al. (2013)), with carbon absorption of 1,908.97 tons CO2 (equation of Ketterings et al. (2001)). The potential carbon absorption rate is 66.43 tons CO2/year (equation of Ketterings et al. (2001)). Taman Konservasi serve an important role in carbon stock and sequestration in supporting climate change mitigation in campus and urban environments.