Mukhortova, L.

Schepaschenko, D.

Shvidenko, A.

International Institute for Applied Systems Analysis (IIASA)

Geophysical Research AbstractsVol. 13, EGU2011-11524, 2011EGU General Assembly 2011© Author(s) 2011Organic carbon in Russian soils: A specified spatially explicit assessmentDmitry Schepaschenko (1,2), Anatoly Shvidenko (1,3), and Lyudmila Mukhortova (3)(1) International Institute for Applied Systems Analysis, A-2361 Laxenburg Austria (schepd@iiasa.ac.at), (2) Moscow StateForest University, Mytischi-5, 141005, Moscow reg., Russia, (3) Sukachev Institute of Forest, Siberian Branch of RussianAcademy of Sciences, 660036, Krasnoyarsk, RussiaThere are several estimations of soil organic carbon of Russia (Orlov et al., 1996; Rozhkov et al., 1996; Alexeyev,Birdsey, 1998; Nilsson et al., 2000; Stolbovoi, 2002; Chestnyh et al., 2004; etc.) which presented a large rangeof reported stock of carbon, particularly for individual land classes (forest, wetland etc.). In order to providethe most reliable estimate, we developed an aggregated model which attempts to apply advantages of methodsused in the above publications. The approach is based on overlay of soil information: Russian Soil map 1:2.5M(Fridland, 1988), database of typical soil profiles and detailed hybrid land use / land cover dataset (Schepaschenkoet al., 2010). The land cover dataset contains the most recent and special explicit land use information with theresolution of 1 km. Updated and corrected database on soil profiles and number of modeling clarifications havebeen introduced (corrections for the method used for empirical assessment of soil carbon, land use type, regionaland vegetation specifics). The method is realized in a form of a dynamic system, which is able to assimilate anynew information on soil and land use.The results are represented by soil organic carbon map, which is parameterized by each 1 km pixel. It contains twolayers: onground organic layer (OL) and 1 meter of soil. Total amount of organic carbon accumulated in Russiansoil assessed as 323 Pg C. The most dynamic part – onground organic layer comprises 16 Pg C. The average carboncontent is 19.5 kg C m−2 (0.94 in the OL). Forest soils has less average carbon content (18.2 kg C m−2), but higherOL (1.13 kg C m−2). More information is available here: http://www.iiasa.ac.at/Research/FOR/hlc/

Organic carbon in Russian soils: A specified spatially explicit assessment

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