Restoration Impact on Tropical Peat Carbon and Nitrogen Dynamics

Currently available information on carbon and nitrogen cycle in peat substrate and vegetation does not provide necessary tools for understanding C & N dynamics in changed conditions after rewetting (restoration) and plant cover re-establishment. This project will provide database and analysis on major biotic and abiotic components influencing drained tropical peat carbon and nitrogen dynamics and quantifies the dynamics in typical restored peat conditions. By comparing gaseous CO2, CH4 and N2O fluxes, changes in peat material characteristics, and other in situ collected information at selected experimental sites it is possible to determine influence of factors, such as water table depth, temperature, and biotic controls in rihizosphere on the C & N dynamics. This study aim to be practical for development of degraded peat restoration applications by providing methods for (i) quick assess drained peat recalcitrant carbon loss potential, and by (ii) quantifying impact of main biotic- and abiotic components influencing peat recalcitrant and recently deposited material C & N dynamics before and after restoration operations.

Cooperative organizations are: University of Helsinki -coordination (Finland), Centre for International Cooperation in Management of Tropical Peatland – CIMTROP (Indonesia), Nitrogen group, Norwegian University of Life Sciences – UMB, (Norway), and National Standardization Agency of Indonesia – BSN (Indonesia).
Period: 2011 – 2015
Client/donor: Government of Finland (Academy of Finland)

Further information is provided by Jyrki Jauhiainen and Harri Vasander