Pattern of Biological Activities in Various Conditions of Planted Acacia Crassicarpa on Peatlands in Relation to Carbon Emission

Authors:
Gunawan Djajakirana, Aninda Puspasari, Marissa Permatasari, Meiyu Soesanto, Sri Maria

Book:
Proceedings of the 14th International Peat Congress

Venue:
Stockholm

Keywords:
biological-activity, carbon-emission, peatlands, plantation-forest

Documentfile:
Djajakirana et al 2012: Pattern of Biological Activities in Various Conditions of Planted Acacia Crassicarpa on Peatlands in Rel

Summary:

Theme IX. Tropical peatlands

SUMMARY

Research on carbon emission that emphasizes on roles of soil biological activity is still lacking. We conducted a research to determine pattern of biological activity under various conditions of natural and planted Acacia crassicarpa on peatlands in relation to water level and carbon emissions. Results show that rate of soil respiration, microbe and soil fauna populations decrease with peat depth. The downward decrease is attributed to decrease of oxygen and substrate supplies. Biological activity was found to be limited at depth of about 50 cm and more regardless of water table level. Low biological activity resulted in reduced decomposition of organic matter and lower carbon (CO₂) emission.