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Aboveground Blue Carbon Stock Assessment of Bakhawan Eco-Park Mangrove Plantation in New Buswang, Kalibo, Aklan, the Philippines

引用

Open Journal of Ecology 2022年第12期12卷 773-787页

作者： Melba L. Raga-as Raffy L. Tano Floramae Q. Polaron Roberto L. Saladar Nenia N. Bohulano Jea-Ann A. Morales Eric R. Gregorio Jose Adonis N. Nacionales Forestry Department College of Agriculture Forestry and Environmental Sciences Aklan State University Banga The Philippines Agriculture Department College of Agriculture Forestry and Environmental Sciences Aklan State University Banga The Philippines Forestry Department College of Agriculture Forestry and Food Science University of Antique Hamtic The Philippines

The purpose of this study was to determine the aboveground biomass density, blue carbon stock, and monetary value of the mangroves at Bakhawan Eco-Park Mangrove Plantation in New Buswang, Kalibo, Aklan. There were 21, 45 × 45-meter sampled plots established, equivalent to 5% sampling intensity of the plantation’s total area. The number of sample plots was distributed in proportion to the area of the plantation in the specific year it was established. The quadrant and random sampling methods were used. All trees in a quadrant were identified, and the biomass density was calculated using the wood density of various mangrove species. Carbon stock was calculated by multiplying the biomass density by 0.46 or 0.5. The monetary value of C was calculated using the benefits transfer method at $5/ton. The results showed that the plantation established in 1990 had the highest biomass density (Mg/ha) and carbon stock (Mg/ha) with 132 Mg/ha and 66.02 Mg/ha, while the plantation established in 2015 had the lowest biomass density and carbon stock (Mg/ha) with 69.98 Mg/ha and 34.99 Mg/ha. Overall, the estimated total monetary value of Bakhawan Eco-Park of 250 hectares mangrove plantation in New Buswang, Kalibo, Aklan is PhP 2994771.63.

关键词： Biomass Density monetary value Mangrove Species GSP Device KASAMA

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