The greenhouse gas (GHG) budget estimations for lakes presents the estimated CO2 equivalent for lakes and per square meter in in the Kokemäenjoki watershed. Coefficients for the River GHG calculations were first derived from the Kortelainen et al. (2006), Bastviken et al. (2004) and Juutinen et al. (2009), and also used in the Luonnikas GHG calculation tool presented in the Haaspuro (2013). Result data set is a spatial shapefile that is published as a web map service.
Results are based on utilizing existing national GIS data sets on lakes to which GHG calculation formulas and coefficients are applied according to references listed below. Data set thus does not have exact time span which it represents, but it is based on the aforesaid data and can be further evolved according to the new published scientific work.
References:
Bastviken D., Cole J., Pace M., Tranvik L. (2004), Methane emission from lakes: Dependence of lake characteristics, two regional assessments, and a global estimate, Global Biogeochem, Cycles, 18.
Haaspuro T. 2013. LUONNIKAS – laskentatyökalu kunnille luontoperäisten kasvihuonekaasujen nielujen ja lähteiden arviointiin. Novia publikation och produktion, serie/sarja A: Artiklar/Artikkelit 2. Utgivare/julkaisija: Yrkeshögskolan Novia, Fabriksgatan 1, Vasa, Finland. ISBN: 978-952-5839-75-3. https://www.novia.fi/dmsdocument/40
Kortelainen, P., Rantakari, M., Huttunen, J., Mattsson, T., Alm, J., Juutinen, S., Larmola, T., Silvola, J., Martikainen, P. 2006. Sediment respiration and lake trophic state are important predictors of large CO2 evasion from small boreal lakes. Global Change Biology
Juutinen S. Rantakari M., Kortelainen P., Huttunen J.T., Larmola T., Alm J., Silvola J., Martikainen P.J. (2009) Methane dynamics in different boreal lake types, Biogeosciences 6, 209-233
