ORIGINAL ARTICLE

Data source :  Google Scholar QueryDate : 2016-12-24 Cites : 0

Absorption of Power Plants СО₂ Emissions by Coniferous Tree Stands

The article reviews the ability of coniferous (common pine, siberian larch and siberian spruce) stands growing in 9 municipal districts of the Irkutsk region to absorb СО₂ technogenic emission of heat power plants. (EIGAF) index is suggested to characterize gas-absorbing (СО₂–absorbing) activity; the index reflects proportion between СО₂ technogenic emission and photosynthetic productivity (GPP) of coniferous tree stands. СО₂–absorbing capacity in 8 of the monitored districts has been shown to significantly exceed the amount of carbon dioxide emission from heat power sector. The index values EIGAF=0.01-0.97 demonstrate that СО₂ technogenic emission amounts to 1-97% of coniferous stands photosynthetic productivity in the areas under study. At the same time, the most industrially developed Angarsk district shows СО₂ photosynthetic absorption to be 8-12 times lower than technogenic СО₂ emission. Reasons of low gas-absorbing capacity of coniferous tree stands of this area are discussed.