COMPOSITION AND STRUCTURE OF MANGROVE ASSOCIATES VEGETATION IN KWANDANG COASTAL AREA NORTH GORONTALO REGION AND MANANGGU COASTAL AREA BOALEMO REGION

Abstrak / Ringkasan

Mangrove Association are plants that can adapt and tolerate in the environmental factors that are extreme ecologically in the coastal areas. That factor is salinity levels. This study described about the composition dan structure of mangrove vegetation. In order this result will support the management and utilization of mangrove associates. The method are used survey method at 2 locations, Kwandang coastal area and Managgu coastal area. Each location is made transects perpendicular from the shoreline to the land, on each transect have 6 plots, and placed on the right and left are intermittent, so the number of plots from the four stations is 24 plot. The plot size is 10 x 10 m2. Environmental parameters measured are soil salinity, soil pH, soil texture and moisture. Data were analyzed by descriptive and quantitative vegetation parameter calculation and computation ordination. The results showed that in the Kwandang coastal areas and Managgu Coastal found 19 species of Mangrove Association, among others; Derris trifoliata, Clerodenron inerme, Spinifex litoreous, Ipomoea pes-caprae, Pongamia pinnata, Sesuvium portulacastrum, Vitex ovate, Pluchea indica L, Canavalia maritime, Passiflora feotida, Cyathula prostrata (L.), Morinda citrifolia L, Terminalia catapa, Scaevola taccada, Stachytarpheta jamaicensis, Calotropis gigantean, Pinus mercusii, Dalbergia latifolia Roxb, and Thespesia populnea. There are differences parameter values of mangrove vegetation associations and the difference in pattern formation in the Kwandang coastal area and Managgu coastal area. There are differences in the micro-environment factors, soil salinity, pH, texture and moisture of air, at both locations.

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