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Junaedi, Ajun
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Agriculture, Biological Sciences & Forestry

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Keanekaragaman Jenis Amfibi pada Habitat Terestrial dan Akuatik di KHDTK Hutan Pendidikan Hampangen Kalimantan Tengah : Amphibian Diversity in Terrestrial and Aquatic Habitats in The Hampangen Educational Forest KHDTK Central Kalimantan Purba, Crysia Lenchiana; Rizal, Moh; Octavianus, Robby; Junaedi, Ajun; Sudomo, M. Fadhil A
JURNAL HUTAN TROPIKA Vol 20 No 2 (2025): Volume 20 Nomor 2 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i2.22714

Abstract

The purpose of this study was to identify amphibian species in terrestrial and aquatic habitats and to analyze species diversity, species richness and species evenness indices in the Hampangen Educational Forest (KHDTK). The method used was strip transect observation with a transect length of ±400m and a left-right width of 5m. The selection of transects was done using purposive sampling. The results of the study showed that there were 7 species of amphibians found and identified in terrestrial and aquatic habitats from 3 families (Ranidae, Dicroglossidae, Rhacophoridae). The Shannon-Wiener diversity index (H’) for amphibian species in terrestrial habitats was 1.790 (moderate category) and in aquatic habitats was 1.078 (low category). The species richness index for amphibians in terrestrial and aquatic habitats is in the low category, with values of 0.291 and 0.513, respectively. Meanwhile, the species evenness index in terrestrial and aquatic habitats is in the high category, with values of 0.920 and 0.982, respectively. Keywords: amphibians, species diversity, terrestrial, aquatic, KHDTK
Karakteristik Vegetasi pada Areal Berhutan di Sekitar Hak Guna Usaha Perkebunan Kelapa Sawit: Vegetation Characteristics in Forest Areas Surrounding Palm Oil Plantation Concession Area Setiarno, Setiarno; Junaedi, Ajun; Hartati, Bunga Resa; S, Muhammad Luthfi
JURNAL HUTAN TROPIKA Vol 20 No 2 (2025): Volume 20 Nomor 2 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i2.23116

Abstract

This study was aimed to analyze and describe the characteristics of vegetation in forested areas in and around the Cultivation Rights area of oil palm plantations (PT. GAP and PT. CWJU). Vegetation data was collected using a quadratic plot technique, where the plot itself was assigned using purposive systematic sampling. Vegetation data in the research plots were analyzed using Microsoft Excel by involving index calculations, namely the Important Value Index/INP or Important Species Value/NPJ, species dominance index, diversity index, richness index, evenness index, and species similarity index. The results of the study in the observation plots have recorded 43 species of woody plants that can be grouped into 34 genera and 21 families. Eugenia uniflora and Shorea macrantha at the research site are more dominant in all growth phases. It is indicated that there is no concentration of dominance by a species in the research plot (C = 0.10 – 0.14), the H’ value is classified as moderate/moderate stability (1 < H’ < 3.22) which reflects sufficient species diversity and relative abundance, the richness index ranges from 1.90 – 2.32 which is generally low (R < 3.5), the evenness index ranges from fairly even to almost even (E = 0.62 – 0.94), and the species similarity index of 0.61 is classified as moderate. Keywords: vegetation, plant species, plant community
Co-Authors Aruan, Jenifer Gimson Luhan Hartati, Bunga Resa Hendra Toni Hidayat, Nisfiatul Hidayat, Ricky Dwi Johanna Maria Rotinsulu K. Firdara, Eritha Madiyawati, Milad Moh Rizal Moh. Rizal, Moh. Mujaffar, Ahmad Nababan, Gabriella SN Nababan, Suzet Rotua Tanya Nababan, Suzet Rotua Tasya Penyang, Penyang Purba, Crysia Lenchiana Raden Mas Sukarna, Raden Mas Rizal, Moh Robby Octavianus S, Muhammad Luthfi Saputra, Jodi Sari , Nurmila Setiarno Setiarno Setiarno Setiarno, Setiarno Sinaga, Fani Delima Sari Sopya, Sopya Sosilawaty, Sosilawaty Sudomo, M. Fadhil A Surasana, I Nyoman Tanduh, Yusinta Yosep Yosep Yulianti, Reri