Mangrove carbon stock assessment by optical satellite imagery
2013
Mohd Hasmadi I. | Khairunnisa M. R. | Khali Aziz H. | Hamdan O. | Ammar A. A.
Matang Mangrove Forest Reserve or known as MatangMangroves is the largest single mangroves in Peninsular Malaysia. Covering an area of about 41,000 ha,majority of this area is forest reserve. Mangroves have long been known as extremely productive ecosystemthat cycle carbon (C) rapidly, but studies related to carbon in this ecosystem are limited. This study wascarried out to assess the carbon stock and quantify their changes following deforestation, wood extractionand forest degradation. Landsat-TM and SPOT-5 satellite images for 1991 and 2011 respectively were utilisedto identify mangroves. Vegetation index generated from the images was used as a variable to indicate carbonstock and it was correlated to forest inventory information through regression. The study showed that carbonstocks of Matang Mangroves ranged from 1.03 to 263.65 t C ha-1and 1.01 to 259.68 t C ha-1for the years 1991and 2011 respectively. Total carbon stock in Matang Mangroves was estimated at about 3.04 mil t C in year1991 and 2.15 mil t C in 2011. The study suggested that the traditional use of vegetation index from opticalimagery systems is still relevant and viable in vegetative studies.
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