Open AccessSEDIMENT ACCUMULATION PROFILE IN MANGROVE RESTORATION AREA OF LEMBAR BAY-LOMBOK ISLAND
Author(s) -
Mohammad Sumiran Paputungan,
Alan F. Koropitan,
Tri Prartono,
Ali Arman Lubis
Publication year - 2017
Publication title -
e-journal ilmu dan teknologi kelautan tropis
Language(s) - English
Resource type - Journals
ISSN - 2085-6695
DOI - 10.28930/jitkt.v9i1.17943
Subject(s) - mangrove , zoology , biology , ecology
Mangrove restoration is really needed for restoring its ecosystem functions, so that it could be able to support fisheries activity and to protect coastal by extreme weather. In addition, mangrove is able to accumulate sediment that important in protecting the coastal area from sea level rise. Therefore, the aim of this study is to investigate sediment accumulation rate in mangrove area during post restoration . Sampling location were divided into three different stations based on estimated restoration ages, such as ≥ 15 years old (Station 1), 4-10 years old (Station 2) and 2-8 years old (Station 3).Sediment cores were carried outby inserting 7.6 cm diameter and 100 cm length ofpolyvinyl chloride pipes. Sedimentation rate is measured by using Pb-210 radionuclide analysis . The result sshow thatthe sediment accumulation rate in the last 20 th years from all station ranges from 0.17 to 0.42 g/cm 2 /year. The highest accumulation rate is found at oldest year old station while the lowest accumulation rate is found at younger year old station of mangrove restoration area. Restoration process is clearly able to recover the mangrove’s role in trapping sediment in coastal region. Keywords : sediment accumulation, mangrove restoration, Lembar Bay- Lombok Island