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Storage capacity of organic carbon in the reclaimed postmining technosols

Greinert A., Drab M., Śliwińska A.

Environment Protection Engineering

2018

Vol. 44, nr 1

117--127

Soil is a huge reservoir of carbon, which is both organically and chemically bounded. Sequestration ability of soil amounting to 0.9±0.3 Pg C.y-1represents significant item in carbon balance. Reclamation activities aimed at soil creating contributes to the carbon binding in the form of complex compounds. This work characterizes fluctuations of organic carbon in post-lignite-mining sites located in Leknica (Poland, Lubuskie Province) after afforestation with Pinus sylvestris. The results present the situation 25 years after the reclamation field experiment commencement Satisfactory effect in growth and development of pine forest was accomplished by liming and NPK application. After 25 years of the experiment start point, the litter deposition gained 2.5-4.0 cm and the initial humic horizon, lying directly beneath reached 4.0-6.5 cm. An average carbon accumulation in surface litter amounted to 2.86 kg.m-2and in initial humic horizons to 0.68 kg.m-2. This indicates an average sequestration of 130 Mg CO2per 1 ha of reclaimed area.

Holocene pattern of organic carbon accumulation in a small lake in Estonia

Punning Jaan_Mati, Koff Tiiu, Sakson Maire, Kangur Mihkel

Polish Journal of Ecology

2007

Vol. 55, nr 1

5-14

A comprehensive study of the sediment profile of L. Viitna Linajarv, a small closed drainage lake located in northern Estonia (59 [deegres] 27.N, 25 [deegres] 01.E), was conducted to assess the impact of water-level changes on the carbon accumulation dynamics in the lake during the Holocene. The variations of the P content, C/N ratio, fossil pigments and diatom communities indicate essential changes in the lake ecosystem history during the Holocene. The results show that on millennial time-scale (10[^3] years) fluctuations of the lake level, concurrent shore erosion and coprecipitation of dissolved organic matter with allochthonous mineral particles were the driving factors in the lake history. Net organic carbon accumulation was [similar to] 30 g m[^-2] yr[^-1] at the beginning of the Holocene (ca 9000 BP), then decreased to 10 g m[^-1] yr[^-1] (5000-2000 BP) and increased in the upper layers (since 1000 BP) up to 60 g m[^-2] yr[^-1].