ANALISIS STOK KARBON PADA TUMBUHAN FAMILI Fabaceae DI AREA HUTAN KAMPUS UNIVERSITAS NEGERI SURABAYA SEBAGAI UPAYA KONSERVASI LINGKUNGAN

CARBON STOCK ANALYSIS OF FAMILY Fabaceae GROWTHS IN THE FOREST AREA OF THE CAMPUS OF SURABAYA STATE UNIVERSITY AS AN EFFORT TO CONSERVE THE ENVIRONMENT

Vegetasi hutan memiliki peran penting dalam mitigasi perubahan iklim global melalui penyimpanan karbon. Hutan kampus Universitas Negeri Surabaya memiliki potensi besar sebagai penyerap karbon, terutama pohon-pohon dari famili Fabaceae. Penelitian ini bertujuan untuk menganalisis stok karbon pada pohon Fabaceae di hutan kampus Universitas Negeri Surabaya sebagai upaya konservasi lingkungan. Pengukuran stok karbon dilakukan dengan metode non-destruktif menggunakan persamaan allometrik. Fokus penelitian ini terbatas pada karbon di atas permukaan tanah (above-ground biomass). Penelitian dilaksanakan di area hutan kampus Universitas Negeri Surabaya dengan sasaran pohon famili Fabaceae. Parameter yang diukur meliputi diameter batang pohon pada ketinggian 1,3 meter di atas permukaan tanah, data sekunder berupa berat jenis kayu, serta kadar klorofil daun. Hasil dari penelitian ini didapatkan bahwa area hutan kampus Unesa memiliki 4 spesies dan jumlah 52 pohon, hasil pengukuran rata-rata stok karbon sebesar 213,96 kg C pohon⁻¹ tahun⁻¹, total penyimpanan stok karbon seluruh pohon sebesar 992,79 kg/ha. Hasil korelasi pearson menunjukkan bahwa terdapat hubungan antara karakteristik morfologi dan fisiologi pohon Fabaceae dengan kontribusi stok karbon yang tersimpan (Sig. 0,31). Berdasarkan asil penelitian ini dapat direkomendasikan bahwa pohon dari famili Fabaceae efisien dalam upaya konservasi lingkungan mengurangi emisi karbon dunia, serta dapat mendukung program penghijauan kampus dan berkontribusi pada pencapaian Tujuan Pembangunan Berkelanjutan (SDGs). 

Kata kunci: Stok karbon, Fabaceae, biomassa, metode allometrik, hutan kampus, SDGs

Forest vegetation has an important role in mitigating global climate change through carbon storage. Surabaya State University campus forests have great potential as carbon sinks, especially trees from the Fabaceae family. This study aims to analyze carbon stocks in Fabaceae trees in Surabaya State University campus forests as an environmental conservation effort. Carbon stock measurement was conducted by nondestructive method using allometric equation. The focus of this research is limited to above-ground biomass. The research was conducted in the campus forest area of Surabaya State University targeting Fabaceae family trees. Parameters measured include tree trunk diameter at a height of 1.3 meters above ground level, secondary data in the form of wood specific gravity, and leaf chlorophyll content. The results of this study found that the Unesa campus forest area has 4 species and a total of 52 trees, the average carbon stock measurement result is 213.96 kg C tree-¹ year-¹, the total carbon stock storage of all trees is 992.79 kg/ha. Pearson correlation results show that there is a relationship between the morphological and physiological characteristics of Fabaceae trees with the contribution of stored carbon stocks (Sig. 0.31). Based on the results of this study, it can be recommended that trees from the Fabaceae family are efficient in environmental conservation efforts to reduce world carbon emissions, and can support campus greening programs and contribute to the achievement of Sustainable Development Goals (SDGs).

Keywords: Carbon stock, Fabaceae, biomass, allometric method, campus forest