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Nurlita Indah Wahyuni, Nurlita Indah
Balai Penelitian Kehutanan Manado Badan Litbang dan Inovasi Kementerian Lingkungan Hidup dan Kehutanan
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Composition and Structure of Tiwoho Mangrove Vegetation at Bunaken National Parkional Park (Komposisi Dan Struktur Vegetasi Mangrove Tiwoho di Kawasan Taman Nasional Bunaken) Tabba, Supratman; Wahyuni, Nurlita Indah; Mokodompit, Hendra Susanto
Jurnal Wasian Vol 2, No 2 (2015): Jurnal Wasian
Publisher : Balai Penelitian Kehutanan Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v2i2.880

Abstract

Tiwoho mangrove forest islocated in north coast of North Sulawesi province.This area functions as life buffer system for community and sustainability of Bunaken National Park. Due to the important and strategic roles of mangrove in protection and ecological functions, therefore, it is needed to know scientific information about mangrove population dynamics. This research aims to know the vegetation composition and structure vegetation of Tiwoho mangrove forest. Data collection used 20x20 m sample plots that were sistematically laid from the sea to the land side up to the highest tidal line. Distance between plots along 25 m. Results showed that at tree level Sonneratia alba had the highest Important Value Index (IVI) of 206,88 % and Brugueira sp of 46,06 %. Although Rhizopora apiculata value is lower than Brugueira sp. But the values of relative frequency of these species are almost similar. It means that both species are frequently found in observation plots. Rhizophora apiculata dominate at pole and sapling levels, but frequency of occurance this species is lower than Brugueira sp in pole level.
The Utilization of ALOS PALSAR Image to Estimate Natural Forest Biomass: Case Study at Bogani Nani Wartabone National Park (Pemanfaatan Citra ALOS PALSAR dalam Menduga Biomasa Hutan Alam: Studi Kasus di Taman Nasional Bogani Nani Wartabone) Wahyuni, Nurlita Indah
Jurnal Wasian Vol 1, No 1 (2014): Jurnal Wasian
Publisher : Balai Penelitian Kehutanan Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v1i1.844

Abstract

The development of remote sensing technology makes it possible to utilize its data in many sectors including forestry. Remote sensing image has been used to map land cover and monitor deforestation. This paper presents utilization of ALOS PALSAR image to estimate and map aboveground biomass at natural forest of Bogani Nani Wartabone National Park especially SPTN II Doloduo and SPTN III Maelang. We used modeling method between biomass value from direct measurement and digital number of satellite image. There are two maps which present the distribution of biomass and carbon from ALOS PALSAR image with 50 m spatial resolution. These maps were built based on backscatter polarization of HH and HV bands. The maps indicate most research area dominated with biomass stock 0-5.000 ton/ha.
Co-Authors Hendra Susanto Supratman Tabba