00000ctm a22000004i 4500 UP-99796217612712460 Buklod 20230214151625.0 m |o d | ta 180322s xx d r |||| u| (iLib)UPD-00360915980 DARCHIVES rda eng DMLUC LG 995 2015 E8 F65 Follosco, Noreen Marie G. author. Sediment Accumulation in Monospecific Rhizophora Plantations Noreen Marie G. Follosco ; Rene N. Rollon, adviser. Quezon City Institute of Environmental Science & Meteorology, College of Science, University of the Philippines Diliman 2015. xi, 100 leaves color illustrations 28 cm text rdacontent unmediated rdamedia volume rdacarrier Thesis (Master of Science in Environmental Science)--University of the Philippines Diliman May2015. Bibliography: pages 96-100. Yes. Available to the general public No. Availavle only after consultation with autor/co-advisers for thesis No. Available only to those bound by non-disclosure or confidentiality agreement Mangroves, along with other coastal vegetation, can trap and accumulate shoreline sediments, which would otherwise be transported through wave action and longshore drift. Sediment accumulation in these habitats is best facilitated by complex root systems such as those seen in diverse forests. However, in the Philippines, there has been widespread proliferation of problematic, monospecific plantations because well-meaning reforestation initiatives have more often involved planting convenient, easy-to-handle Rhizophora species. This study aimed to quantitatively measure sediment accumulation in fringing monospecific Rhizophora and Rhizophora-dominated plantations. Measurements were made in a fringe plantation with a riverine sediment supply, and in an afforested plantation in a carbonate environment where there are no adjacent streams. Sediment elevation, which was used to detect accumulation, can be as high as 0.5 to 1 m in the fringe plantation with a riverine sediment supply. Here, a young (≤15 years) Rhizophora-dominated plantation shows elevation differences of at least half a meter despite being farther away from the creek, indicating that the trees themselves are the primary drivers of accumulation. Sediment accumulation is relatively lower in the carbonate plantation, with elevation values ranging from 0.3 m to 0.6 m in some areas. These findings are significant because the absence of a riverine sediment supply suggests that accumulation was facilitated primarily by the Rhizophora plantation. Here, the substrate is loose, organic mud that is distributed across an extensive reef flat by local tides. Monospecific Rhizophora plantations present several ecological and cost issues, but are nonetheless able to significantly accumulate sediment and can, ultimately, function in a stabilizing the coast. Mangrove conservation. Coastal zone management. Mangrove ecology Philippines. Coastal sediments. Rollon, Rene N. adviser. Thesis FI UP UPD DARCHIVES LG 995 2015 E8 F65 Thesis