Floristic composition of a tropical rain forest in Indonesian Borneo.
1990
Sukardjo S. | Hagihara A. | Yamakura T. | Ogawa H.
Floristic composition was examined in a tall virgin tropical lowland evergreen rain forest dominated by Dipterocarpaceae in Sebulu, East Kalimantan, Indonesia. A sample plot of 1.0 ha was established in the forest stand. All plant individuals (dbh >= 10cm) were labeled, and their dbhs and species names were recorded. In addition to the individuals, small individuals (4.5 <= dbh < 10cm) in the half of the plot were labeled and mapped, and their dbhs were recorded with the species names. Total basal area was estimated to be 37.3 square-meter ha(-1). Forty percent of the total basal area was provided by the Dipterocarpaceae, whose number amounted to only 9.4% of the total number of individuals. 592 individual with dbh above 10cm were enumerated in the 1.0 ha sample plot, those which belonged to 276 species of 127 genera of 47 families (including 19 woody climbers of 3 species and 24 palms of 1 species). Eight hundred and eighteen individuals with dbh above 4.5cm were enumerated in the 0.5 ha sample plot, those which belonged to 320 species of 141 general of 48 families (including 45 woody climbers of 12 species of 10 genera, 13 palms of 1 species, and 1 pandan).
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