ABSTRAK

OKTAVIA RIA ISMAWATI. 2025. “Analisis Pola Distribusi Vegetasi Binjai Manis (Mangifera caesia) di Kabupaten Tanah Bumbu.” Skripsi Program Studi Kehutanan, Fakultas Kehutanan, Universitas Lambung Mangkurat. Pembimbing: Dr. Hj. Adistina Fitriani, S.Hut., M.P. dan Hj. Dina Naemah, S.Hut., M.P.

Kata Kunci: Mangifera caesia; Pola Distribusi; Indeks Morisita; Indeks Nilai Penting; Binjai Manis.

Penelitian ini bertujuan untuk menganalisis pola distribusi vegetasi binjai manis (Mangifera caesia) pada berbagai tingkat pertumbuhan di Kabupaten Tanah Bumbu. Pola distribusi dianalisis untuk mengetahui bagaimana individu-individu binjai tersebar di habitat alaminya sebagai dasar pengelolaan dan konservasi jenis lokal. Penentuan plot dilakukan secara purposive sampling pada tiga lokasi sebaran alami binjai di Desa Saring Sungai Binjai. Pengumpulan data dilakukan melalui pengukuran vegetasi pada subplot berukuran 2×2 m (semai), 5×5 m (pancang), 10×10 m (tiang), dan 20×20 m (pohon). Pola distribusi dianalisis menggunakan Indeks Morisita (Id).

Hasil penelitian menunjukkan bahwa pola distribusi binjai manis cenderung mengelompok (clumped) pada hampir seluruh tingkatan pertumbuhan, ditunjukkan oleh nilai Id > 1. Pola mengelompok ini dipengaruhi oleh faktor lingkungan mikro seperti naungan, kondisi tanah, serta proses regenerasi alami yang terjadi di sekitar pohon induk. Selain itu, terbatasnya lokasi tumbuh dan sifat ekologis binjai yang cenderung berkembang di habitat tertentu turut memperkuat kecenderungan pola mengelompok. Temuan ini mengindikasikan pentingnya menjaga pohon induk dan habitat alaminya sebagai sumber regenerasi untuk mendukung upaya pelestarian dan pengembangan jenis lokal bernilai ekologis dan ekonomis.

Data pola distribusi ini diharapkan dapat menjadi dasar dalam pengelolaan, konservasi, serta pemanfaatan binjai manis sebagai salah satu sumber daya hutan bukan kayu (HHBK) unggulan daerah.

ABSTRACT

OKTAVIA RIA ISMAWATI. 2025. “Analysis of the Distribution Pattern of Binjai Manis (Mangifera caesia) Vegetation in Tanah Bumbu Regency.” Undergraduate Thesis, Forestry Study Program, Faculty of Forestry, Lambung Mangkurat University. Advisors: Dr. Hj. Adistina Fitriani, S.Hut., M.P., and Hj. Dina Naemah, S.Hut., M.P.

Keywords: Mangifera caesia; Distribution Pattern; Morisita Index;Important Value Index; Binjai Manis.

This search aims to analyze the distribution pattern of binjai manis (Mangifera caesia) vegetation at various growth stages in Tanah Bumbu Regency. The distribution pattern was examined to understand how individuals of M. caesia are spatially dispersed within their natural habitat, serving as a basis for the management and conservation of this local species. Sampling plots were established using purposive sampling in three natural distribution areas located in Saring Sungai Binjai Village. Data collection was carried out through vegetation measurements within subplots of 2×2 m (seedlings), 5×5 m (saplings), 10×10 m (poles), and 20×20 m (trees). The distribution pattern was analyzed using the Morisita Index (Id).

The results showed that binjai manis tends to exhibit a clumped distribution pattern across nearly all growth stages, as indicated by Id values greater than 1. This clustered distribution is influenced by micro-environmental factors such as shading, soil conditions, and natural regeneration processes occurring around the mother trees. Additionally, the species’ limited habitat range and ecological preference for specific site conditions further reinforce its tendency to form clumped patterns. These findings highlight the importance of protecting mother trees and their natural habitats as sources of regeneration to support the conservation and development of this ecologically and economically valuable local species.

The distribution pattern data obtained in this study are expected to serve as a scientific basis for the management, conservation, and utilization of binjai manis as a potential regional non-timber forest product (NTFP).