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All Journal BERITA BIOLOGI JURNAL BIOLOGI INDONESIA
Pratama, Bayu Arief
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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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.
Co-Authors Edi Mirmanto, Edi MUHAMMAD MANSUR