We have created this Blog and the database to provide a place where the scientific community can share and update the fast growing knowledge and data on the study of greenhouse gas CO2, CH4, and N2O fluxes in Africa.

We are grateful for the numerous researchers and technicians who provide invaluable data. It is impossible to cite all the references due to limited space allowed and we apologize for the authors whose work has not been cited.

Nsabimana et al., 2009. Soil CO2 flux in six monospecific forest plantations in Southern Rwanda

Nsabimana, D., Klemedtson, L., Kaplin, B.A., Wallin, G., 2009. Soil CO2 flux in six monospecific forest plantations in Southern Rwanda. Soil Biology and Biochemistry 41, 396-402


Forest soils contain the largest carbon stock of all terrestrial biomes and are probably the most important source of carbon dioxide (CO2) to atmosphere. Soil CO2 fluxes from 54 to 72-year-old monospecific stands in Rwanda were quantified from March 2006 to December 2007. The influences of soil temperature, soil water content, soil carbon (C) and nitrogen (N) stocks, soil pH, and stand characteristics on soil CO2 flux were investigated. The mean annual soil CO2 flux was highest under Eucalyptus saligna (3.92 [mu]mol m-2 s-1) and lowest under Entandrophragma excelsum (3.13 [mu]mol m-2 s-1). The seasonal variation in soil CO2 flux from all stands followed the same trend and was highest in rainy seasons and lowest in dry seasons. Soil CO2 flux was mainly correlated to soil water content (R2 = 0.36-0.77), stand age (R2 = 0.45), soil C stock (R2 = 0.33), basal area (R2 = 0.21), and soil temperature (R2 = 0.06-0.17). The results contribute to the understanding of factors that influence soil CO2 flux in monocultural plantations grown under the same microclimatic and soil conditions. The results can be used to construct models that predict soil CO2 emissions in the tropics.

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