STRUKTUR DAN KEKAYAAN JENIS TUMBUHAN MANGROVE PASCA TSUNAMI DI PULAU NIAS
(Structure and species richness of mangroves plant post-tsunami in Nias island)
Onrizal1,, Cecep Kusmana2
1Departemen Kehutanan Fakultas Pertanian Universitas Sumatera Utara
2Departemen Silvikultur Fakultas Kehutanan Institut Pertanian Bogor
Mangroves is an essential natural resources in coastal area both ecology and socio-economic. Adapted mangrove vegetation on tsunami disaster is important information for mangrove rehabilitation after tsunami. The aim of the research was to determine the structure and species richness of mangrove vegetation after tsunami by vegetation analyses and inventory methods. Field survey was carried out in March 2005 or three months after tsunami disaster. We found 20 adapted mangrove species after tsunami in Nias island with dominated by R. apiculata. Land system of KJP was compound of 17 adapted mangrove species, and land system of PTG and KHY were each compound of 7 adapted mangrove species. Based on our research, R. apiculata is the first priority species for mangrove rehabilitation in Nias island.
Keywords: mangrove, adapted species, post-tsunami, rehabilitation, Nias island
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