Studying Mangroves

Water temperature was measured using a thermometer. The pH was determined using a pH meter, and salinity was measured using the handheld TOGA refractors. Mangrove Damage and Recovery Assessment The methods employed In this study were based from Roth (1992) and Taylor et al. (2013) with some modifications. In the island of Butting, seven 100 mm plots were established. The plots established were based on the phytology types present. L. Species Composition All mangroves grow within the plots were recorded and Identified In slut. The Handbook of Mangroves in the Philippines Panky by primary et al. 004) and Field Guide to Philippine Mangroves besides by Primeval (2009) were used as principal resources in identifying the species. Mangroves were categorized into three trees, saplings, and seedlings. For Individuals having great than or equal to 2. 5 CM DAB (girth at pectus height, or 1. 3 m above ground level), they were categorized as trees. GHB (CM) of each tree was measured usin g a cadence tape. For forking or branching stems, measurement was done separately. For the seedlings and saplings, they were only identify and counted.Other observations, such as debris and abstract type, were also noted. II. Recovery Typhoon Impacts on the areas were recorded. Trees wealth the plots were Judged as dead or alive, and assigned to one of three structural impact categories standing, fallen, or snapped. The approximate height of breakage for snapped trees was also whether well reformatted, poorly reformatted, or dead were recorded. Ill. Regenerative Capacity In assessing the regenerative capacity, the lean of seedlings and saplings were monitored every month from February until April 2014. Live and dead plants were noted. Data AnalysesThe forest vegetation was evaluated using the following formula described by Croshort ton teal in 1984. Density was measured species wise and total in each plot as follows Total density of all species = kernel of all species densities ( 2) Basal area was measured species wise and total in each plot as follows Basal area (mm) of each species = 0. 005 x DAB (7) Importance value of a species = coition density + relative dominance + relative frequency Species diversity was described according to the Shannon proponent (H) based on enormousness value of a species (N) and sum of importance value for all the species (N). H = NUN log NUN (10)