Carbon stock assessment of three selected agroforestry systems in Bukidnon, Philippines
Journal Title: Advances in Environmental Sciences - International Journal of the Bioflux Society - Year 2012, Vol 4, Issue 1
Abstract
Climate change, caused by global warming, is a phenomenon partly resulting from abundance of carbon dioxide in the atmosphere. It is the most pressing environmental problem of the world today. It persists, and it cannot be stopped. Rather, it can be mitigated. Agroforestry systems as land use can reduce the atmospheric concentration of carbon dioxide. This study therefore aimed to generate data on the carbon stocks of three selected agroforestry systems located within the Province of Bukidnon. The methodologies used include measurement of trees at diameter breast height (dbh) and sampling of herbaceous vegetation, litter, and soil for carbon content determination and farmer interview. Results showed that carbon accumulation of agroforestry systems goes along with the following order: taungya agroforestry system (174 MgC ha-1) > mixed multistorey system (162 MgC ha-1) > falcata-coffee multistorey system (92 MgC ha-1). Carbon was stored in the various pools in the following order of magnitude: soil (77-92%) > trees (7-22%) > herbaceous vegetation and litter (1%). Compared with natural forests, these selected agroforestry systems represents 23-44% of the total carbon stock. Policy programs promoting the establishment of agroforestry systems in idle lands in Bukidnon should be considered.
Authors and Affiliations
Mildred Labata, Edgardo Aranico, Alicia Tabaranza, Jose Patricio, Ruben Amparado, Jr
Keywords
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