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All Journal Jurnal Biologi Tropis Bioscientist : Jurnal Ilmiah Biologi
Nababan, Badia Roy Ricardo
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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Kondisi Tempat Tumbuh dan Simpanan Karbon Diatas Permukaan Tanah pada Tegakan Jati di Taman Wisata Alam Camplong Provinsi Nusa Tenggara Timur Pathibang, Meilyn Renny; Matatula, Jeriels; Aryani, Ni Kade Ayu Dewi; Selanno, Frenly Marvi; Oktaviani, Eva; Silaban, Rosalia; Almulqu, Aah Ahmad; Kleruk, Flora Evalina; Wardhana, Laurentius D. Wisnu; Lamanda, Sukriati Andesti; Rusadi, Nusrah; Nababan, Badia Roy Ricardo
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i3.17235

Abstract

Forests store biomass and carbon in the form of living trees, forest floor detritus (e.g. litter falls), soil and wood products. This study describes inventory results of the above ground biomass of teak (Tectona grandis L.f.). By determining the site condition and developing allometric method, the inventory was designed to estimate the potential of above ground biomass of teak. This study aims to determine the characteristics or site qualities, carbon stock and find out whether the characteristics of the soil has a high or low correlation to the carbon stored in teak forest in Taman Wisata Alam Camplong, East Nusa Tenggara Province. Carbon stored in teak forests are 45.53 ton/ha and 104.35 ton/ha for IV and V age classes, respectively. The correlation between soil characteristics and carbon stock is obtained that the P and K soil has a positive correlation to carbon stock in the teak forest. The equation model for the relationship between growing conditions and aboveground carbon stocks is Y=25.182-4.149X1-172.231X2 + 2.046X3 + 32.711X4 + 0.297X5-28.330X6-1.746X7 +0.171X8.
Vegetation Analysis and Tree Architecture Model at the Kupang State Agricultural Polytechnic Arboretum Nababan, Badia Roy Ricardo; Nufus, Mitha Rabhiyatul; Takoy, Darmawana
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4a.10421

Abstract

The Kupang State Agricultural Polytechnic Arboretum is a vegetation collection located in an area with arid and semi-arid climate characteristics. Understanding the vegetation composition and tree architecture model is important information for effective arboretum management and conservation planning in the East Nusa Tenggara region. This study aims to analyze the vegetation composition to determine the Importance Value Index (IVI) at various growth phases and to identify the dominant tree architecture models in the Kupang State Agricultural Polytechnic Arboretum.Vegetation data collection was conducted using the line transect method, covering the seedling to tree phases. The data were analyzed using INP calculations, while tree architecture models were analyzed descriptively and exploratively based on tropical tree architecture references. The results of the vegetation analysis showed that dominant species such as Kirinyuh (Chromolaena adorata), Gewang (Corypha utan), Gamal (Gliricidia sepium), and Jati Putih (Gmelina arborea) had the highest importance values in each growth phase, indicating high adaptability to dry land conditions. The most commonly found tree architecture model was the Troll Model (in 9 of 12 species), characterized by a broad and leafy canopy. The Attims and Rauh models were also found in several species with specific ecological functions. The dominance of adaptive species and the Troll Model indicate that the arboretum functions optimally as shade, windbreak, and erosion control, which are essential for ecological functions in drylands. This study provides important ecological baseline data for conservation management and sustainable green open space development in the semi-arid region of East Nusa Tenggara.
Co-Authors Almulqu, Aah Ahmad Jeriels Matatula, Jeriels Kleruk, Flora Evalina Lamanda, Sukriati Andesti Laurentius D. Wisnu Wardhana Ni Kade Ayu Dewi Aryani Nufus, Mitha Rabhiyatul Oktaviani, Eva Pathibang, Meilyn Renny Rusadi, Nusrah Selanno, Frenly M. Silaban, Rosalia Takoy, Darmawana