PRODUCTION STUCTURE OF MAIN COMMERCIAL TREE SPECIES

IN A MANGROVE FOREST IN EAST SUMATRA, INDONESIA

Cecep Kusmana and Hiroyuki Watanabe

Abstract: Production structure of main commercial tree species was studied in a mangrove forest in East Sumatra, Indonesia. This research was carried out in January 1994 using the estimation of standing biomass with stratified clipping method in order to know the production structure of the main commercial tree species in this mangrove forest i.e. Rhizophora apiculata, Bruguiera parviflora, and B. sexangula.

The result obtained show that R. apiculata tended to have a sparser foliage of thicker leaves along the stem then B. parviflora or B. sexangula, therefore R. apiculata is regarded as a shade-intolerant tree species. In contrast, either B. parviflora and B. sexangula tended to have a larger proportion of leaves and branches along the stem; consequently, those species are recognized as shade-tolerant tree species.

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