Posted by: wahyukdephut | February 13, 2014

Estimating Aboveground Forest Carbon Increment Based on Inventory (Permanent Sample Plots) in Tropical Mangrove Forests

Authors: H. Krisnawati*, W.C. Adinugroho

Forestry Research and Development Agency, Indonesia


Conversions of mangroves into other land uses have resulted in the emission of the green house relevant gas CO2 and a severe loss of mangrove biodiversity. However, this ecosystem has been undervalued in the past and consequently subject to deforestation and degradation. Because of the threats to mangrove forest ecosystem, a capability for accounting for carbon stock and stock changes of mangroves is essential to assess and reduce greenhouse gas emissions from deforestation and forest degradation. The changes in aboveground carbon stock can be estimated by stock increment through successive measurements from forest inventories or permanent sample plots. In this study, we estimated aboveground forest biomass and carbon stock increments of mangroves using data from permanent sample plots collected from a tropical mangrove forest in West Kalimantan, Indonesia. A methodology for estimating aboveground forest carbon was applied to the permanent sample plots. We applied ratios based on the study conducted in the surrounding site to estimate unmeasured pools of aboveground carbon (stems <5 cm in diameter and woody debris) in the plots. The permanent sample plot data were then used to determine the relationship between initial biomass or carbon stock and its subsequent increment over a one-year period. This relationship was applied to the inventory data to obtain a robust estimate of biomass and carbon stock changes. The methodology and resulted estimates will support the national carbon accounting system necessary in the development of REDD+ strategies for climate change mitigation initiatives and will encourage transparency and consistency in the estimation of tropical mangrove forest carbon.

Keywords: inventory, carbon, mangrove, tropical forest

Planet Under Pressure Conference, 26-29 March 2012, London


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