REGENERASI Rhizophora DI KAWASAN HUTAN MANGROVE DESA SUNGAI RAWA KECAMATAN SUNGAI APIT KABUPATEN SIAK PROPINSI RIAU

Muhammad Hamid, Khairijon ', Nery Sofiyanti

Abstract


This study aimed to determine the regeneration of  Rhizophora on mangrove forest, Sungai Rawa  village, Sungai Apit  Sub-District, Riau Province.  This study had been carried out in
February 2014.  The sampling were collected with  purposive sampling using nested plot. The size of plot for tree, pole, and sapling were 20x20 m, 5x5 m and 2x2 m, respectively. Three locations were selected for study sites, i.e. low, mid, and high activity locations. The result showed that only one  Rhizophora  spesies i.e  Rhizophora apiculata,that found in all of the locations with  300% Important Value Index for each growth stage.  R. apiculata  had good regeneration status. The highest density in each stage was found in the low activity location, with the  density value for  seedling, sapling and tree were 17000 individuals / ha, 1200  individual/ha and 318 individual / ha, respectively. While the lowest density was found in different study sites, i.e. high activity location for seedling (3600 individual/ha) and in the mid activity location for sapling (660 individual/ha) and trees (108 individual/ha).

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