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All Journal Biodiversitas Journal of Biological Diversity
MOCHAMAD ARIEF SOENDJOTO
Faculty of Forestry, Universitas Lambung Mangkurat. Jl. Ahmad Yani Km 36, Banjarbaru 70714, South Kalimantan, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Floristic diversity and composition of heath forest in Kuala Tambangan Village, Tanah Laut District, Indonesia MOCHAMAD ARIEF SOENDJOTO; MAULANA KHALID RIEFANI; SHERLI DIANA
Biodiversitas Journal of Biological Diversity Vol. 24 No. 10 (2023)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d241024

Abstract

Abstract. Soendjoto MA, Riefani MK, Diana S. 2023. Floristic diversity and composition of heath forest in Kuala Tambangan Village, Tanah Laut District, Indonesia. Biodiversitas 24: 5418-5427. Heath forest (kerangas) is a unique ecosystem characterized with sandy soil with poor nutrients. This harsh condition makes heath forest has unique vegetation diversity as well as vulnerable to disturbances. In South Kalimantan, there is a heath forest located in Kuala Tambangan, Tanah Laut District which has never been explored. The research aims to analyze the diversity and composition of vegetation community in heath forest in Kuala Tambangan and identify factors that have the potential to damage the forest. Data was collected using the transect method placed at three sites in the heath forest. Along each transect, 10 observation plots with size 20 m × 20 m were established to record woody plants at the tree level. Within this plot, nested plots with size of 10 m × 10 m was created to record plants at pole level, 5 m × 5 m for saplings and herbaceous plants and 2 m × 2 m for seedlings, ferns and grasses. In total, there were 85 plant species across all observation plots with 79 species were found in the heath soils. Some typical heath forest species were found such as Melaleuca sp., Baeckea frutescens L. and Cratoxylum formosum (Jack) Benth. & Hook.fil. ex Dyer. Important Value Index (IVI) as well as Shannon-Wiener diversity index (H') varied, both by plant group and by study site. For example, the highest IVI of the tree group belonged to Acacia crassicarpa A.Cunn. ex Benth. and Acacia mangium Willd., and for pole level was Melaleuca sp. The lowest diversity occurred at Site B, while the highest was at Site C. The results on vegetation diversity, structure and composition suggest that this forest is in degraded condition. Fires and land conversion are factors that threaten the existence of heath forest in Kuala Tambangan. Our findings recommend the needs of efforts to protect and restore this unique ecosystem.
Diversity and composition of plants in ex-mining revegetation lands for cement raw materials in South Kalimantan, Indonesia MOCHAMAD ARIEF SOENDJOTO; I WAYAN KEDEP SUDIARTA; M. INDRA Z. CANGARA; WISNU ADI PATRIA; MAULANA KHALID RIEFANI
Biodiversitas Journal of Biological Diversity Vol. 26 No. 2 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d260214

Abstract

Abstract. Soendjoto MA, Sudiarta IWK, Cangara MIZ, Patria WA, Riefani MK. 2025. Diversity and composition of plants in ex-mining revegetation lands for cement raw materials in South Kalimantan, Indonesia. Biodiversitas 26: 670-680. PT Indocement Tunggal Prakarsa Tbk carries out open-pit mining to obtain cement raw materials in Kotabaru District, South Kalimantan, Indonesia, for the Tarjun-12 Factory. The company then undertakes the challenging task of revegetating ex-mining lands. However, there are no existing records of plant species post-revegetation, which occurred 13 to 16 years ago. This research is unique in its approach, aiming to document plant species and analyze their presence after revegetation. The methodology involves placing an observation path on each ex-mining land, with each path comprising 10 observation plots (20 m x 20 m) for recording woody plants at tree level. Each observation plot includes a small plot (10 m x 10 m) for data collection at the pole level, one plot (5 m x 5 m) for sapling level and non-woody plants (herbs), and one plot (2 m x 2 m) for seedling level and non-woody plants (grasses, ferns). The data were then analyzed after obtaining the importance value index, diversity index (Shannon-Wiener), and similarity index (Sorensen). The study revealed that more than 90% of the 155 plant species (54 families) are spontaneously grown plants, and most plant communities between ex-mining lands are dissimilar. The highest diversity is in woody plants at the sapling level and also trees on ex-laterite mining land. These results represent unique baseline data for 13-16 years post-revegetation.
Co-Authors I WAYAN KEDEP SUDIARTA M. INDRA Z. CANGARA MAULANA KHALID RIEFANI MAULANA KHALID RIEFANI SHERLI DIANA WISNU ADI PATRIA