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| Title | Tree species composition in lowland mixed Dipterocarp forest of Samboja Research Forest three decades after initial major fire | | Author | Subekti Rahayu, Sambas Basuni, Agus Priyono Kartono and Agus Hikmat | | Year | 2015 | | Parent Title | Paper Presented at The International Conference of Indonesia Forestry Researchers III | | Publisher | Ministry of Environment and Forestry-Forestry Research, Development and Innovation Agency | | City of Publication | Bogor, Indonesia | | Pages | 544-552 | | Call Number | PP0378-16 | | Keywords | East Kalimantan, forest fire, mixed dipterocarp, species composition, three decades |
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| Abstract: |
| Tree species composition in lowland mixed Dipterocarp forest of Samboja Research Forest, East Kalimantan significantly changed at three decades after initial major fire of 1983. Permanent plot of 1.8 hectares was observed 2011 by Indonesian Institute of Science collaborate with World Agroforestry Centre to study tree species composition in lowland mixed Dipterocarp forest after affected by repeated fires through record all tree diameter and floristic composition of tree above 10 centimetre DBH in each 10 m x 10 m subplot. Leaves specimen as herbarium were collected during the survey to identify the species. List of species were collected by Indonesian Institute of Sciences before fire of 1981 used as reference. Amount of 192 species recorded in 2011 that consists of 115 pre-fire species and 77 new comer species. Small tree 10-20 centimetre DBH is very common and reach 70% of tree population which is dominated by light demanding species, both of pre-fire and new comer species that considered recruited after second fire of 1998. Even though, number of species is in balance between light demanding and shade tolerant. Only 2.5% of tree population belong to eleven species considered survive from fire. Euphorbiaceae is family with highest number of individual trees up to 25% of total population belong to 10 genera and 25 species which is covered 60% of total genera and species before fire. Macaranga gigantea is minor population light demanding pre-fire species develop vastly become dominant species, as well as, Vernonia arborea a light demanding new comer species. Polidocarpus majadun, Dipterocarpus cornutus, Diospyros borneensis and Eusideroxylon zwageri are pre-fire shade tolerant species consistently co-dominant due to resistant from fire. |
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