EKOLOGI DAN VEGETASI EKOSISTEM MANGROVE DI AIR BANGIS KABUPATEN PASAMAN BARAT (STUDI KASUS : PULAU PANJANG DAN PULAU TAMIANG)
Abstract
Mangrove is a major life-supporting ecosystems which is important in coastal areas. Indonesia has the uniqueness of mangrove ecosystems with the highest species diversity in the world. The condition of Indonesian mangrove both qualitative and quantitative continued to decline from year to year. This study aims to determine the ecology and vegetation mangrove ecosystem in Panjang Island and Tamiang Island in Pasaman Barat. Mangroves conditions in Panjang Island Tamiang Island were in a good condition. Substrate conditions in Panjang Island is sandy mud substrate, whereas in Tamiang Island is rocky sand substrate. Based on the magnitude of importance value (IVi) for overall observations, vegetation transects from each of the mangrove tree and sapling based parameters as follows: (1) Rate trees on transect I and transect II is dominated by R. mucronata (IVI = 208.89%) and R. stylosa (IVI = 135.34%), while the third transect was dominated by R. stylosa (IVI = 300.00%),( 2) Level I sapling at the transects and transect II is dominated by R. mucronata (IVI = 155.57%) and R. stylosa (IVI = 240.62%), while the third transect was dominated by R. stylosa (IVI = 300.00%).
Key Words: Ecology, Vegetation, Mangrove, Air Bangis
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