Carbon stocks of second growth forest and reforestation stands in Southern Philippines: baseline for carbon sequestration monitoring

Tulod, Adrian M.
December 2015
Advances in Environmental Sciences;2015, Vol. 7 Issue 3, p422
Academic Journal
The purpose of this study is to generate baseline quantitative estimates of carbon stocks of natural and common tree plantation species necessary for future carbon sequestration monitoring using permanent monitoring sample plots. Standard sampling techniques and forest/species-specific allometric equations were used to estimate the biomass and carbon stocks of tree plantations and natural stand. The study showed that even without appropriate management interventions, the five stands can store carbon ranging from 112.72 to 226.80 Mg C ha-1 or a total of 914.61 Mg C ha-1 in its biomass and soil comparable to managed tree plantations and natural forest in the country. As observed, frequency distribution for aboveground carbon followed a trend: Second growth forest > Mahogany > Mangium > Teak > Yemane. Of the carbon pools, aboveground biomass obtained the bulk of carbon stored except in Teak stand where most of the carbon was stored in the soil which totally influenced the total storage potential of the site. Teak registered highest in soil organic carbon (SOC) with 134.58 Mg C ha-1 or about three times higher as compared to the SOC of second growth forest and the other tree plantations. It is very interesting therefore to know how appropriate ecosystem management would affect the potential of these stands/forests for carbon sequestration.


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