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All Journal MEDIA KONSERVASI BERITA BIOLOGI JURNAL BIOLOGI INDONESIA Filogeni: Jurnal Mahasiswa Biologi
Pratama, Bayu Arief
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Immunology & microbiology Materials Science & Nanotechnology

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ANALISIS VEGETASI DI PULAU BINTAN, KEPULAUAN RIAU Pratama, Bayu Arief; Mirmanto, Edi
BERITA BIOLOGI Vol 18, No 3 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i3.3715

Abstract

Ecological study with special attention to vegetation analysis has been done in the Bintan forest area, Riau Archipelago. Based on three sampling plots of 30 × 30 m, there were 73 tree (dbh ? 5 cm) species were recorded, belong to 64 genera and 32 families. The density is fairly high (1,485 individuals /ha) with total basal area relatively low (27.71 m2/ha).  Its indicates that most of trees are small size. Similarity index among study sites are relatively low (< 25 %), indicates that there is strong relation between habitat and species composition. Out of the 6 most common tree species in the study area, only Dipterocarpus gracillis was dominant in 2 study sites. Overall species diversity is relatively low, which is characteristic of forest vegetation on small islands. 
POTENSI SERAPAN GAS KARBONDIOKSIDA (CO2) PADA JENIS-JENIS POHON PELINDUNG JALAN Mansur, Muhammad; Pratama, Bayu Arief
JURNAL BIOLOGI INDONESIA Vol 10, No 2 (2014): Jurnal Biologi Indonesia
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v10i2.2079

Abstract

A Study of Potential Absorption of Carbon Dioxide (CO2) in Wayside Trees in Bogor City around was conductedin April to May 2013 by using a portable LCi ADC Bioscientific Ltd. Photosynthesis System. Inventory of waysidetrees species in the site was done by surveys, and sixty-three samples from twenty-one species of wayside trees havebeen measured. This study for determined the ability of CO2 absorption in each species of wayside trees species.Twenty one species of wayside trees were recorded. Angsana (Pterocarpus indicus), Mahogany (Swieteniamacrophylla), Walnuts (Canarium indicum), and Tanjung (Mimusops elengii) were common wayside trees planted inBogor and surrounding areas. The highest rate of CO2 absorption was recorded for Kersen (Muntingia calabura) onaverage of 23.92 μmol/m2/s , followed by the Bintaro (Cerbera manghas) 16.42 μmol/m2/s, Dadap (Erythrina cristagalli)16.38 μmol/m2/s, and Trembesi (Albizia saman) 15.87 μmol/m2/s. A common planted species in the rangebetween 8 to 13 μmol/m2/s, such as; Angsana (Pterocarpus indicus) 12,79 μmol/m2/s, Walnuts (Canariumindicum) 9,39 μmol/m2/s, Tanjung (Mimusops elengi) 8,72 μmol/m2/s and Mahogany (Swietenia macrophylla) 8,30μmol/m2/s. While the lowest CO2 absorption is Burahol (Stelechocarpus burahol) 7.16 μmol/m2/s, BungaSaputangan (Maniltoa grandiflora) 7.89 μmol/m2/s and Damar (Agathis alba) 7.86 μmol/m2/s. There were positivecorrelation between transpiration rate with CO2 absorption rate and stomatal conductance on all the tree specieswere measured.Keywords: CO2 absorption, wayside trees, Bogor.
Stand structure and biomass estimation for cultivation of Agarwood-producing species on Buru Island, Maluku Province, Indonesia Pratama, Bayu Arief; Atikah, Tika Dewi; Susanti, Ruliyana; Jakalalana, Supardi; Ferdinandus, Stanly P.; Maail, Rohny Setiawan
Media Konservasi Vol. 30 No. 1 (2025): Media Konservasi Vol 30 No 1 January 2025
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.30.1.63

Abstract

Agarwood is a resin product of agarwood-producing species belonging to the Thymelaeaceae family. This product is categorized as a non-timber forest product and has high value. Species of Aquilaria filaria (Oken) Merr. and Aquilaria cumingiana (Decne.) Ridl. are two agarwood-producing species known to grow natively in the Maluku region. This research aims to observe the stand structure and biomass estimation in several Aquilaria sp. cultivation gardens on Buru Island. Five observation plots with sizes 20 x 20 m have been created in three villages on Buru Island. Standard vegetation analysis, principal component analysis, and simulation of aboveground biomass using bootstrap techniques have already been done. Aquilaria sp. is the most important species in the observed community based on the important value index and cos2 value from principal component analysis. The diversity index shows the medium category with mostly stable conditions based on the evenness index. While the biomass estimation shows an average value of 600.50 kg ha-1 with a standard error 273.26 kg ha-1.
Analisis vegetasi pohon di Ekoregion Kalimantan Kawasan Ecology Park Kebun Raya Bogor Ahsan, Andi Widya Aulia; Sukmawaty, Eka; Pratama, Bayu Arief
Filogeni: Jurnal Mahasiswa Biologi Vol 1 No 3 (2021): September-Desember
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.755 KB) | DOI: 10.24252/filogeni.v1i3.26236

Abstract

Analisis vegetasi merupakan salah satu cara yang digunakan besarnya sebaran dari berbagai macam spesies yang ada di dalam suatu area kegiatan ini dilakukan dengan pengamatan langsung dan dilakukan dengan membuat petak ukur serta mengamati morfologi dan identifikasi vegetasi yang ada. Jutuan dari penelitian ini yaitu untuk mengkaji seberapa besar sebaran jenis, kenekaragaman jenis, kemerataan jenis, kekayaan jenis, pola sebaran dan factor lingkungan yang mempengaruhi komunitas organisme. Penelitian ini dilakukan pada bulan Januari hingga maret pada Ekoregion Kalimantan Kawasan Ecology Park Kebun Raya Bogor. Hasil penelitian menunjukkan terdapat 11 jenis spesies dengan, Indeks morisita menunjukkan Ip > 0. Hal ini mengindikasi bahwa sifat yang ada pada lahan tersebut bersifat mengelompok. Dengan batas kepercayaan 95% pada -0.5 dan 0.5.   Nilai H’ sedang, indeks kemerataan jenis yang tinggi serta kekayaan jenis yang rendah Selain itu, sebaran pada petak pengamatan umumnya memiliki nilai INP 300 dengan Suku terpenting adalah Araceae (NP 66,7619).
Co-Authors Ahsan, Andi Widya Aulia Atikah, Tika Dewi Edi Mirmanto, Edi Ferdinandus, Stanly P. Jakalalana, Supardi MUHAMMAD MANSUR Rohny Setiawan Maail Sukmawaty, Eka Susanti, Ruliyana